init

backend/app/api/v1/endpoints/audit_rule.py

@@ -23,7 +23,7 @@ async def list_audit_rules(
     db_type: Optional[str] = None,
     is_enabled: Optional[bool] = None,
     db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(require_role("admin", "dba")),
+    current_user: User = Depends(require_role("admin", "dba", "auditor")),
 ):
     stmt = select(AuditRule).order_by(AuditRule.id)
     if rule_type:
@@ -62,7 +62,7 @@ async def create_audit_rule(
 @router.get("/stats/summary")
 async def rule_stats(
     db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(require_role("admin", "dba")),
+    current_user: User = Depends(require_role("admin", "dba", "auditor")),
 ):
     total_stmt = select(func.count(AuditRule.id))
     total = (await db.execute(total_stmt)).scalar()
@@ -130,7 +130,7 @@ async def seed_audit_rules(
 async def get_audit_rule(
     rule_id: int,
     db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(require_role("admin", "dba")),
+    current_user: User = Depends(require_role("admin", "dba", "auditor")),
 ):
     result = await db.execute(select(AuditRule).where(AuditRule.id == rule_id))
     rule = result.scalar_one_or_none()

backend/app/api/v1/endpoints/db_types.py

@@ -49,7 +49,6 @@ DB_TYPE_INFO: Dict[str, Dict[str, Any]] = {
             "查看索引": "SHOW INDEX FROM table_name",
             "查看连接": "SHOW PROCESSLIST",
             "查看状态": "SHOW STATUS LIKE 'Threads%'",
-            "查看慢查询": "SELECT * FROM mysql.slow_log ORDER BY start_time DESC LIMIT 20",
         },
         "limitations": [
             "不支持存储过程调用",

backend/app/api/v1/endpoints/instance_detail.py

@@ -217,42 +217,6 @@ async def show_grants(
         raise HTTPException(status_code=500, detail="查询权限失败: " + str(e))
 
 
-# ---- Slow Queries ----
-
-@router.get("/{instance_id}/detail/slow-queries")
-async def slow_queries(
-    instance_id: int,
-    database: Optional[str] = Query(None, description="数据库名"),
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(require_role("admin", "dba")),
-):
-    instance = await _get_decrypted_instance(db, instance_id)
-    # P0: 权限检查
-    await check_instance_access(current_user, instance, db)
-    if instance.db_type != "mysql":
-        raise HTTPException(status_code=400, detail="仅支持MySQL实例")
-    try:
-        # Try querying mysql.slow_log table first
-        try:
-            sql = (
-                "SELECT start_time, user_host, query_time, lock_time, "
-                "rows_sent, rows_examined, sql_text "
-                "FROM mysql.slow_log ORDER BY start_time DESC LIMIT 100"
-            )
-            rows = await _mysql_query(instance, sql, database=database)
-            return rows
-        except Exception:
-            # Fallback: show slow query variables
-            rows = await _mysql_query(
-                instance,
-                "SHOW VARIABLES LIKE 'slow%'",
-                database=database,
-            )
-            return rows
-    except Exception as e:
-        raise HTTPException(status_code=500, detail="查询慢查询失败: " + str(e))
-
-
 # ---- Processlist ----
 
 @router.get("/{instance_id}/detail/processlist")

backend/app/api/v1/endpoints/ldap_config.py

@@ -100,12 +100,11 @@ async def test_ldap_connection(
     db: AsyncSession = Depends(get_db),
     current_user: User = Depends(require_role("admin")),
 ):
-    """测试 LDAP 连接 — 使用 mock 模拟"""
+    """测试 LDAP 连接"""
     ldap = await _get_existing(db)
     if not ldap:
         raise HTTPException(status_code=404, detail="LDAP 配置不存在，请先创建")
 
-    # Use mock for testing — python-ldap may not be installed
     try:
         import ldap as _ldap  # noqa
         # Real LDAP test path
@@ -131,12 +130,9 @@ async def test_ldap_connection(
         return {"success": True, "message": f"LDAP 连接成功，用户 {data.test_user} 验证通过"}
 
     except ImportError:
-        # Mock path — python-ldap not installed
-        host = ldap.ldap_host
-        port = ldap.ldap_port
         return {
-            "success": True,
-            "message": f"[Mock] LDAP 连接模拟成功 ({host}:{port})，用户 {data.test_user} 验证通过",
+            "success": False,
+            "message": "python-ldap 未安装，无法测试 LDAP 连接。请执行: pip install python-ldap",
         }
     except Exception as e:
         return {"success": False, "message": f"LDAP 连接失败: {str(e)}"}

backend/app/api/v1/endpoints/notification.py

@@ -124,7 +124,9 @@ async def test_notification(
     db: AsyncSession = Depends(get_db),
     current_user: User = Depends(require_role("admin")),
 ):
-    """测试发送通知 — 目前返回模拟结果"""
+    """测试发送通知 — 实际发送测试消息到配置的渠道。"""
+    from app.services.notification_sender import NotificationSender
+
     result = await db.execute(
         select(NotificationChannel).where(NotificationChannel.id == channel_id)
     )
@@ -133,24 +135,19 @@ async def test_notification(
         raise HTTPException(status_code=404, detail="通知渠道不存在")
 
     config = json.loads(channel.config) if channel.config else {}
-    channel_type = channel.channel_type
-
-    # Simulated test — in production this would actually send a message
-    if channel_type == "dingtalk":
-        if not config.get("webhook_url"):
-            return {"success": False, "message": "缺少 webhook_url 配置"}
-        return {"success": True, "message": f"钉钉测试消息已发送至 {config['webhook_url'][:30]}..."}
-
-    elif channel_type == "webhook_feishu":
-        if not config.get("webhook_url"):
-            return {"success": False, "message": "缺少 webhook_url 配置"}
-        return {"success": True, "message": f"飞书测试消息已发送至 {config['webhook_url'][:30]}..."}
-
-    elif channel_type == "email":
-        required = ["smtp_host", "smtp_port", "smtp_user", "from_addr"]
-        missing = [k for k in required if not config.get(k)]
-        if missing:
-            return {"success": False, "message": f"缺少必要配置: {', '.join(missing)}"}
-        return {"success": True, "message": f"邮件测试已发送: {config['smtp_user']} -> test@example.com"}
-
-    return {"success": False, "message": f"不支持的通知类型: {channel_type}"}
+    sender = NotificationSender()
+    test_data = {
+        "title": "测试通知",
+        "applicant": current_user.display_name or current_user.username,
+        "db_type": "mysql",
+        "target_database": "test_db",
+        "sql_preview": "SELECT 1",
+        "priority": "normal",
+        "approver": "系统",
+        "ticket_id": "TEST",
+        "result": "成功",
+        "duration": "10",
+        "affected_rows": "0",
+    }
+    result = await sender.send(channel.channel_type, config, "ticket_created", test_data)
+    return result

backend/app/api/v1/endpoints/slow_log.py

@@ -1,103 +0,0 @@
-"""慢日志 API。"""
-from typing import Optional
-from fastapi import APIRouter, Depends, HTTPException
-from sqlalchemy import select
-from sqlalchemy.ext.asyncio import AsyncSession
-
-from app.core.database import get_db
-from app.core.security import get_current_user, require_role
-from app.core.crypto import decrypt_password
-from app.models.user import User
-from app.models.instance import Instance
-from app.services.slow_log_collector import SlowLogCollector
-
-router = APIRouter(prefix="/slow-logs", tags=["慢日志分析"])
-
-
-@router.get("/instances/{instance_id}")
-async def list_slow_logs(
-    instance_id: int,
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(require_role("admin", "dba")),
-):
-    """获取指定实例的慢日志。"""
-    result = await db.execute(select(Instance).where(Instance.id == instance_id))
-    instance = result.scalar_one_or_none()
-    if not instance:
-        raise HTTPException(status_code=404, detail="数据源不存在")
-
-    collector = SlowLogCollector()
-    logs = collector.get_slow_logs(instance_id)
-
-    return {
-        "instance_id": instance_id,
-        "total": len(logs),
-        "logs": [log.to_dict() for log in logs],
-    }
-
-
-@router.post("/instances/{instance_id}/collect")
-async def collect_slow_logs(
-    instance_id: int,
-    database: str = "",
-    limit: int = 50,
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(require_role("admin", "dba")),
-):
-    """手动收集慢日志。"""
-    result = await db.execute(select(Instance).where(Instance.id == instance_id))
-    instance = result.scalar_one_or_none()
-    if not instance:
-        raise HTTPException(status_code=404, detail="数据源不存在")
-
-    if not database:
-        database = instance.database or ""
-
-    collector = SlowLogCollector()
-    instance.password = decrypt_password(instance.password)
-
-    try:
-        if instance.db_type == "mysql":
-            logs = await collector.collect_mysql_slow_logs(instance, database, limit)
-        elif instance.db_type in ("postgres", "postgresql"):
-            logs = await collector.collect_postgres_slow_logs(instance, database, limit)
-        else:
-            raise HTTPException(status_code=400, detail=f"不支持的类型: {instance.db_type}")
-    except Exception as e:
-        raise HTTPException(status_code=500, detail=f"收集失败: {str(e)}")
-
-    await collector.save_slow_logs(instance_id, logs)
-    report = collector.get_report(instance_id)
-
-    return report.to_dict()
-
-
-@router.get("/instances/{instance_id}/report")
-async def slow_log_report(
-    instance_id: int,
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(require_role("admin", "dba")),
-):
-    """获取慢日志分析报告。"""
-    collector = SlowLogCollector()
-    report = collector.get_report(instance_id)
-    return report.to_dict()
-
-
-@router.get("/dashboard/top")
-async def dashboard_top_queries(
-    db: AsyncSession = Depends(get_db),
-    current_user: User = Depends(get_current_user),
-):
-    """仪表盘慢查询 TOP 10。"""
-    collector = SlowLogCollector()
-    all_logs = []
-    for instance_id, logs in collector._logs.items():
-        all_logs.extend(logs)
-
-    # 全局 TOP 10
-    top = sorted(all_logs, key=lambda x: x.avg_time_ms, reverse=True)[:10]
-    return {
-        "total_instances": len(collector._logs),
-        "top_queries": [q.to_dict() for q in top],
-    }

backend/app/api/v1/router.py

@@ -5,7 +5,7 @@ from app.api.v1.endpoints import (
     announcement, notification, ldap_config,
     instance_detail, backup, redis, dictionary,
     instance_group, masking_rule, rollback,
-    workflow, impact, schema_drift, slow_log, pool,
+    workflow, impact, schema_drift, pool,
     mongo, query_history, sql_assistant, db_types,
     settings,
 )
@@ -34,7 +34,6 @@ api_router.include_router(rollback.router)
 api_router.include_router(workflow.router)
 api_router.include_router(impact.router)
 api_router.include_router(schema_drift.router)
-api_router.include_router(slow_log.router)
 api_router.include_router(pool.router)
 api_router.include_router(query_history.router)
 api_router.include_router(sql_assistant.router)

backend/app/main.py

@@ -29,17 +29,27 @@ async def seed_workflows():
 
 
 async def seed_data():
-    """Create default admin user from environment config."""
+    """Create default users with different roles."""
+    from app.core.security import hash_password
+
+    default_users = [
+        {"username": "admin", "display_name": "超级管理员", "role": "admin", "password": "admin123"},
+        {"username": "dba", "display_name": "张三", "role": "dba", "password": "admin123"},
+        {"username": "auditor", "display_name": "老六", "role": "auditor", "password": "admin123"},
+        {"username": "developer", "display_name": "路人甲", "role": "developer", "password": "admin123"},
+    ]
+
     async with async_session() as db:
-        result = await db.execute(select(User).where(User.username == settings.ADMIN_USERNAME))
-        if not result.scalar_one_or_none():
-            db.add(User(
-                username=settings.ADMIN_USERNAME,
-                display_name="管理员",
-                role="admin",
-                hashed_password=hash_password(settings.ADMIN_PASSWORD),
-            ))
-            await db.commit()
+        for u in default_users:
+            result = await db.execute(select(User).where(User.username == u["username"]))
+            if not result.scalar_one_or_none():
+                db.add(User(
+                    username=u["username"],
+                    display_name=u["display_name"],
+                    role=u["role"],
+                    hashed_password=hash_password(u["password"]),
+                ))
+        await db.commit()
 
 
 @asynccontextmanager
@@ -62,7 +72,6 @@ async def lifespan(app: FastAPI):
     import app.models.notification_template  # noqa
     import app.models.scheduled_task  # noqa
     import app.models.schema_revision  # noqa
-    import app.models.slow_log  # noqa
     import app.models.query_history  # noqa
 
     await init_db()

backend/app/models/slow_log.py

@@ -1,21 +0,0 @@
-"""慢日志模型。"""
-from sqlalchemy import Column, Integer, String, Text, DateTime, ForeignKey, func
-
-from app.core.database import Base
-
-
-class SlowLog(Base):
-    """慢日志记录。"""
-    __tablename__ = "slow_logs"
-
-    id = Column(Integer, primary_key=True, autoincrement=True)
-    instance_id = Column(Integer, ForeignKey("instances.id"), nullable=False)
-    database = Column(String(100), nullable=True)
-    sql_digest = Column(String(64), nullable=True)
-    sql_text = Column(Text, nullable=True)
-    execution_count = Column(Integer, default=1)
-    avg_time_ms = Column(Integer, nullable=True)
-    max_time_ms = Column(Integer, nullable=True)
-    rows_examined = Column(Integer, nullable=True)
-    rows_sent = Column(Integer, nullable=True)
-    created_at = Column(DateTime, server_default=func.now())

backend/app/models/user.py

@@ -13,7 +13,7 @@ class User(Base):
     email = Column(String(100), unique=True, nullable=True)
     phone = Column(String(20), nullable=True)
     hashed_password = Column(String(200), nullable=False)
-    role = Column(String(20), nullable=False, default="developer")  # admin / dba / developer / guest
+    role = Column(String(20), nullable=False, default="developer")  # admin / dba / auditor / developer / guest
     is_active = Column(Boolean, default=True)
     last_login = Column(DateTime, nullable=True)
     created_at = Column(DateTime, server_default=func.now())

backend/app/services/notification_sender.py

@@ -18,40 +18,40 @@ class NotificationSender:
     # 内置消息模板
     TEMPLATES = {
         "ticket_created": {
-            "title": "📝 新工单待审批: {title}",
-            "body": "**申请人**: {applicant}\\n**数据库**: {db_type}@{target_database}\\n**SQL摘要**: {sql_preview}\\n**优先级**: {priority}",
+            "title": "新工单待审批: {title}",
+            "body": "**申请人**: {applicant}\n**数据库**: {db_type}@{target_database}\n**SQL摘要**: {sql_preview}",
         },
         "ticket_approved": {
-            "title": "✅ 工单已审批通过: {title}",
-            "body": "**审批人**: {approver}\\n**工单ID**: {ticket_id}\\n**状态**: 已批准，可执行",
+            "title": "工单已审批通过: {title}",
+            "body": "**审批人**: {approver}\n**工单ID**: {ticket_id}\n**状态**: 已批准，可执行",
         },
         "ticket_rejected": {
-            "title": "❌ 工单已被拒绝: {title}",
-            "body": "**审批人**: {approver}\\n**拒绝原因**: {comment}\\n**工单ID**: {ticket_id}",
+            "title": "工单已被拒绝: {title}",
+            "body": "**审批人**: {approver}\n**拒绝原因**: {comment}\n**工单ID**: {ticket_id}",
         },
         "ticket_executed": {
-            "title": "🚀 工单执行完成: {title}",
-            "body": "**执行结果**: {result}\\n**耗时**: {duration}ms\\n**影响行数**: {affected_rows}",
+            "title": "工单执行完成: {title}",
+            "body": "**执行结果**: {result}\n**耗时**: {duration}ms\n**影响行数**: {affected_rows}",
         },
         "ticket_failed": {
-            "title": "⚠️ 工单执行失败: {title}",
-            "body": "**错误信息**: {error}\\n**工单ID**: {ticket_id}\\n请及时处理",
+            "title": "工单执行失败: {title}",
+            "body": "**错误信息**: {error}\n**工单ID**: {ticket_id}\n请及时处理",
         },
         "ticket_rollback": {
-            "title": "🔄 工单已回滚: {title}",
-            "body": "**回滚人**: {operator}\\n**工单ID**: {ticket_id}",
+            "title": "工单已回滚: {title}",
+            "body": "**回滚人**: {operator}\n**工单ID**: {ticket_id}",
         },
         "backup_completed": {
-            "title": "💾 备份完成: {title}",
-            "body": "**数据库**: {database}\\n**文件大小**: {size}\\n**耗时**: {duration}s",
+            "title": "备份完成: {title}",
+            "body": "**数据库**: {database}\n**文件大小**: {size}\n**耗时**: {duration}s",
         },
         "backup_failed": {
-            "title": "❌ 备份失败: {title}",
-            "body": "**错误信息**: {error}\\n请检查数据库连接和磁盘空间",
+            "title": "备份失败: {title}",
+            "body": "**错误信息**: {error}\n请检查数据库连接和磁盘空间",
         },
         "schema_drift_detected": {
-            "title": "🔍 检测到 Schema 漂移: {instance_name}",
-            "body": "**数据库**: {database}\\n**发现 {drift_count} 处变更**:\\n{drift_details}",
+            "title": "检测到 Schema 漂移: {instance_name}",
+            "body": "**数据库**: {database}\n**发现 {drift_count} 处变更**:\n{drift_details}",
         },
     }
 
@@ -101,6 +101,9 @@ class NotificationSender:
         title = template["title"].format(**data)
         body = template["body"].format(**data)
 
+        # 钉钉 markdown 单个 \n 视为空格，需要 \n\n 才能换行
+        body = body.replace("\n", "\n\n")
+
         payload = {
             "msgtype": "markdown",
             "markdown": {

backend/app/services/slow_log_collector.py

@@ -1,269 +0,0 @@
-"""慢日志收集器 — 从数据库收集和分析慢查询日志。
-
-支持:
-- MySQL: performance_schema.events_statements_summary_by_digest
-- PostgreSQL: pg_stat_statements
-
-生成慢查询报告，包含 TOP N 慢查询、执行时间趋势等。
-"""
-import hashlib
-from dataclasses import dataclass, field
-from datetime import datetime
-from typing import List, Dict, Any, Optional
-
-from app.models.instance import Instance
-from app.services.db_connector import DBConnector
-from app.core.crypto import decrypt_password
-
-
-@dataclass
-class SlowLogEntry:
-    """慢日志条目。"""
-    sql_digest: str           # SQL 指纹
-    sql_text: str             # 归一化 SQL
-    execution_count: int      # 执行次数
-    avg_time_ms: float        # 平均执行时间(ms)
-    max_time_ms: float        # 最大执行时间(ms)
-    min_time_ms: float        # 最小执行时间(ms)
-    rows_examined: int        # 扫描行数
-    rows_sent: int            # 返回行数
-    first_seen: Optional[str] = None
-    last_seen: Optional[str] = None
-
-    def to_dict(self) -> dict:
-        return {
-            "sql_digest": self.sql_digest,
-            "sql_text": self.sql_text[:200] if self.sql_text else "",
-            "execution_count": self.execution_count,
-            "avg_time_ms": round(self.avg_time_ms, 2),
-            "max_time_ms": round(self.max_time_ms, 2),
-            "min_time_ms": round(self.min_time_ms, 2),
-            "rows_examined": self.rows_examined,
-            "rows_sent": self.rows_sent,
-            "first_seen": self.first_seen,
-            "last_seen": self.last_seen,
-        }
-
-
-@dataclass
-class SlowLogReport:
-    """慢日志分析报告。"""
-    total_slow_queries: int
-    avg_execution_time_ms: float
-    max_execution_time_ms: float
-    top_queries: List[SlowLogEntry]
-    time_distribution: Dict[str, int]  # 按时间段分布
-
-    def to_dict(self) -> dict:
-        return {
-            "total_slow_queries": self.total_slow_queries,
-            "avg_execution_time_ms": round(self.avg_execution_time_ms, 2),
-            "max_execution_time_ms": round(self.max_execution_time_ms, 2),
-            "top_queries": [q.to_dict() for q in self.top_queries],
-            "time_distribution": self.time_distribution,
-        }
-
-
-class SlowLogCollector:
-    """慢日志收集器。"""
-
-    # 内存中的慢日志存储: {instance_id: [SlowLogEntry, ...]}
-    _logs: Dict[int, List[SlowLogEntry]] = {}
-
-    async def collect_mysql_slow_logs(self, instance: Instance,
-                                       database: str,
-                                       limit: int = 50) -> List[SlowLogEntry]:
-        """从 MySQL performance_schema 收集慢日志。
-
-        需要 MySQL 开启 performance_schema。
-        """
-        sql = """
-        SELECT
-            DIGEST_TEXT as sql_text,
-            COUNT_STAR as execution_count,
-            ROUND(AVG_TIMER_WAIT / 1000000000, 3) as avg_time_ms,
-            ROUND(MAX_TIMER_WAIT / 1000000000, 3) as max_time_ms,
-            ROUND(MIN_TIMER_WAIT / 1000000000, 3) as min_time_ms,
-            SUM_ROWS_EXAMINED as rows_examined,
-            SUM_ROWS_SENT as rows_sent,
-            FIRST_SEEN,
-            LAST_SEEN
-        FROM performance_schema.events_statements_summary_by_digest
-        WHERE SCHEMA_NAME = %s
-          AND AVG_TIMER_WAIT > 100000000000  -- > 100ms
-        ORDER BY AVG_TIMER_WAIT DESC
-        LIMIT %s
-        """
-
-        try:
-            instance.password = decrypt_password(instance.password)
-            rows, _ = await DBConnector._query_mysql(instance, "performance_schema", sql)
-        except Exception as e:
-            # performance_schema 可能不可用，使用替代查询
-            return await self._collect_mysql_slow_logs_fallback(instance, database, limit)
-
-        entries = []
-        for row in rows:
-            sql_text = row.get("sql_text", "")
-            digest = hashlib.md5(sql_text.encode()).hexdigest()[:16]
-            entries.append(SlowLogEntry(
-                sql_digest=digest,
-                sql_text=sql_text[:500],
-                execution_count=int(row.get("execution_count", 0) or 0),
-                avg_time_ms=float(row.get("avg_time_ms", 0) or 0),
-                max_time_ms=float(row.get("max_time_ms", 0) or 0),
-                min_time_ms=float(row.get("min_time_ms", 0) or 0),
-                rows_examined=int(row.get("rows_examined", 0) or 0),
-                rows_sent=int(row.get("rows_sent", 0) or 0),
-                first_seen=str(row.get("FIRST_SEEN", "")) if row.get("FIRST_SEEN") else None,
-                last_seen=str(row.get("LAST_SEEN", "")) if row.get("LAST_SEEN") else None,
-            ))
-
-        return entries
-
-    async def _collect_mysql_slow_logs_fallback(self, instance: Instance,
-                                                  database: str,
-                                                  limit: int) -> List[SlowLogEntry]:
-        """备用方案：使用 SHOW PROCESSLIST 获取当前慢查询。"""
-        sql = "SHOW FULL PROCESSLIST"
-
-        try:
-            instance.password = decrypt_password(instance.password)
-            rows, _ = await DBConnector._query_mysql(instance, database, sql)
-        except Exception:
-            return []
-
-        entries = []
-        for row in rows:
-            time_val = row.get("Time", 0)
-            info = row.get("Info", "")
-            if time_val and int(time_val) > 1 and info and len(info) > 10:
-                digest = hashlib.md5(info.encode()).hexdigest()[:16]
-                entries.append(SlowLogEntry(
-                    sql_digest=digest,
-                    sql_text=info[:500],
-                    execution_count=1,
-                    avg_time_ms=float(time_val) * 1000,
-                    max_time_ms=float(time_val) * 1000,
-                    min_time_ms=float(time_val) * 1000,
-                    rows_examined=0,
-                    rows_sent=0,
-                ))
-
-        return entries[:limit]
-
-    async def collect_postgres_slow_logs(self, instance: Instance,
-                                          database: str,
-                                          limit: int = 50) -> List[SlowLogEntry]:
-        """从 PostgreSQL pg_stat_statements 收集慢日志。
-
-        需要安装 pg_stat_statements 扩展。
-        """
-        sql = """
-        SELECT
-            query as sql_text,
-            calls as execution_count,
-            ROUND((total_exec_time / calls)::numeric, 3) as avg_time_ms,
-            ROUND(max_exec_time::numeric, 3) as max_time_ms,
-            ROUND(min_exec_time::numeric, 3) as min_time_ms,
-            rows as rows_examined,
-            rows as rows_sent
-        FROM pg_stat_statements
-        WHERE dbid = (SELECT oid FROM pg_database WHERE datname = $1)
-          AND total_exec_time / calls > 100  -- > 100ms
-        ORDER BY total_exec_time / calls DESC
-        LIMIT $2
-        """
-
-        try:
-            instance.password = decrypt_password(instance.password)
-            # 需要先创建扩展
-            await DBConnector._query_postgres(instance, database,
-                "CREATE EXTENSION IF NOT EXISTS pg_stat_statements")
-            rows, _ = await DBConnector._query_postgres(instance, database, sql)
-        except Exception:
-            # pg_stat_statements 可能不可用
-            return []
-
-        entries = []
-        for row in rows:
-            sql_text = row.get("sql_text", "")
-            digest = hashlib.md5(sql_text.encode()).hexdigest()[:16]
-            entries.append(SlowLogEntry(
-                sql_digest=digest,
-                sql_text=sql_text[:500],
-                execution_count=int(row.get("execution_count", 0) or 0),
-                avg_time_ms=float(row.get("avg_time_ms", 0) or 0),
-                max_time_ms=float(row.get("max_time_ms", 0) or 0),
-                min_time_ms=float(row.get("min_time_ms", 0) or 0),
-                rows_examined=int(row.get("rows_examined", 0) or 0),
-                rows_sent=int(row.get("rows_sent", 0) or 0),
-            ))
-
-        return entries
-
-    async def save_slow_logs(self, instance_id: int,
-                              logs: List[SlowLogEntry]) -> None:
-        """保存慢日志到内存存储。"""
-        if instance_id not in self._logs:
-            self._logs[instance_id] = []
-
-        # 追加新日志，限制每个实例最多保存 1000 条
-        self._logs[instance_id].extend(logs)
-        if len(self._logs[instance_id]) > 1000:
-            self._logs[instance_id] = self._logs[instance_id][-1000:]
-
-    def get_slow_logs(self, instance_id: int) -> List[SlowLogEntry]:
-        """获取保存的慢日志。"""
-        return self._logs.get(instance_id, [])
-
-    def get_report(self, instance_id: int) -> SlowLogReport:
-        """生成慢日志报告。"""
-        logs = self._logs.get(instance_id, [])
-
-        if not logs:
-            return SlowLogReport(
-                total_slow_queries=0,
-                avg_execution_time_ms=0,
-                max_execution_time_ms=0,
-                top_queries=[],
-                time_distribution={},
-            )
-
-        total_avg = sum(q.avg_time_ms for q in logs) / len(logs)
-        max_time = max(q.max_time_ms for q in logs)
-
-        # 按执行时间分布
-        distribution = {
-            "0-100ms": 0,
-            "100-500ms": 0,
-            "500ms-1s": 0,
-            "1s-5s": 0,
-            ">5s": 0,
-        }
-        for q in logs:
-            if q.avg_time_ms < 100:
-                distribution["0-100ms"] += 1
-            elif q.avg_time_ms < 500:
-                distribution["100-500ms"] += 1
-            elif q.avg_time_ms < 1000:
-                distribution["500ms-1s"] += 1
-            elif q.avg_time_ms < 5000:
-                distribution["1s-5s"] += 1
-            else:
-                distribution[">5s"] += 1
-
-        # TOP 10
-        top = sorted(logs, key=lambda x: x.avg_time_ms, reverse=True)[:10]
-
-        return SlowLogReport(
-            total_slow_queries=len(logs),
-            avg_execution_time_ms=round(total_avg, 2),
-            max_execution_time_ms=round(max_time, 2),
-            top_queries=top,
-            time_distribution=distribution,
-        )
-
-    def clear_logs(self, instance_id: int) -> None:
-        """清除指定实例的慢日志。"""
-        self._logs.pop(instance_id, None)

backend/tests/conftest.py

@@ -17,7 +17,6 @@ from app.models.announcement import Announcement
 from app.models.notification import NotificationChannel
 from app.models.ldap_config import LdapConfig
 from app.models.backup import Backup
-from app.models.slow_log import SlowLog
 from app.models.scheduled_task import ScheduledTask
 from app.models.schema_revision import SchemaRevision
 from app.models.masking_rule import MaskingRule

backend/tests/test_instance_detail.py

@@ -177,28 +177,6 @@ class TestShowGrants:
             assert len(data["grants"]) >= 1
 
 
-class TestSlowQueries:
-    async def test_slow_queries_success(self, client: AsyncClient, test_instance, admin_token):
-        mock_conn, _ = _mock_mysql_connection([
-            {"start_time": "2024-01-01 00:00:00", "user_host": "root[root]@localhost",
-             "query_time": "00:00:05", "lock_time": "00:00:00", "rows_sent": 1,
-             "rows_examined": 1000, "sql_text": "SELECT * FROM big_table"},
-        ])
-
-        mock_aiomysql = _make_aiomysql_mock()
-        mock_aiomysql.connect = AsyncMock(return_value=mock_conn)
-
-        with patch.dict(sys.modules, {"aiomysql": mock_aiomysql}):
-            resp = await client.get(
-                "/api/v1/instances/" + str(test_instance.id) + "/detail/slow-queries",
-                params={"database": "test_db"},
-                headers=auth_header(admin_token),
-            )
-            assert resp.status_code == 200
-            data = resp.json()
-            assert isinstance(data, list)
-
-
 class TestProcesslist:
     async def test_show_processlist_success(self, client: AsyncClient, test_instance, admin_token):
         mock_conn, _ = _mock_mysql_connection([

backend/tests/test_ldap_config.py

@@ -267,8 +267,8 @@ async def test_create_ldap_config_empty_password(client: AsyncClient, admin_toke
 # ────────────────────────────────────────────────────────────────────
 
 @pytest.mark.asyncio
-async def test_ldap_connection_mock_success(client: AsyncClient, admin_token: str):
-    """配置存在时 POST /test 在 mock 模式下应返回 success=True"""
+async def test_ldap_connection_real_failure(client: AsyncClient, admin_token: str):
+    """配置存在时 POST /test 应尝试真实连接，测试环境无 LDAP 服务器则返回 success=False"""
     await client.put(
         "/api/v1/ldap-config",
         json=VALID_LDAP_PAYLOAD,
@@ -282,11 +282,10 @@ async def test_ldap_connection_mock_success(client: AsyncClient, admin_token: st
     )
     assert resp.status_code == 200
     data = resp.json()
-    assert data["success"] is True
-    # mock 模式消息中包含 Mock 字样
-    assert "Mock" in data["message"]
-    # 消息中应包含主机和测试用户信息
-    assert "zhangsan" in data["message"]
+    # 测试环境无真实 LDAP 服务器，连接应失败
+    assert data["success"] is False
+    # 消息中应包含连接错误信息
+    assert any(kw in data["message"] for kw in ["error", "fail", "未安装", "连接失败", "LDAP"])
 
 
 @pytest.mark.asyncio

backend/tests/test_notification.py

@@ -1,5 +1,6 @@
 """Comprehensive tests for NotificationChannel CRUD, permissions, config masking, and test-send."""
 import pytest
+from unittest.mock import AsyncMock, patch
 from httpx import AsyncClient
 
 from tests.conftest import auth_header
@@ -268,7 +269,9 @@ async def test_delete_nonexistent_channel(client: AsyncClient, admin_token: str)
 
 
 @pytest.mark.asyncio
-async def test_send_dingtalk_success(client: AsyncClient, admin_token: str):
+@patch("app.services.notification_sender.NotificationSender.send", new_callable=AsyncMock)
+async def test_send_dingtalk_success(mock_send, client: AsyncClient, admin_token: str):
+    mock_send.return_value = {"success": True, "message": "钉钉测试消息发送成功"}
     create = await client.post(BASE, json=DINGTALK_PAYLOAD, headers=auth_header(admin_token))
     cid = create.json()["id"]
 
@@ -297,7 +300,9 @@ async def test_send_dingtalk_missing_webhook(client: AsyncClient, admin_token: s
 
 
 @pytest.mark.asyncio
-async def test_send_feishu_success(client: AsyncClient, admin_token: str):
+@patch("app.services.notification_sender.NotificationSender.send", new_callable=AsyncMock)
+async def test_send_feishu_success(mock_send, client: AsyncClient, admin_token: str):
+    mock_send.return_value = {"success": True, "message": "飞书测试消息发送成功"}
     create = await client.post(BASE, json=FEISHU_PAYLOAD, headers=auth_header(admin_token))
     cid = create.json()["id"]
 
@@ -325,7 +330,9 @@ async def test_send_feishu_missing_webhook(client: AsyncClient, admin_token: str
 
 
 @pytest.mark.asyncio
-async def test_send_email_success(client: AsyncClient, admin_token: str):
+@patch("app.services.notification_sender.NotificationSender.send", new_callable=AsyncMock)
+async def test_send_email_success(mock_send, client: AsyncClient, admin_token: str):
+    mock_send.return_value = {"success": True, "message": "邮件测试消息发送成功"}
     create = await client.post(BASE, json=EMAIL_PAYLOAD, headers=auth_header(admin_token))
     cid = create.json()["id"]
 
@@ -351,9 +358,7 @@ async def test_send_email_missing_smtp_config(client: AsyncClient, admin_token:
     assert resp.status_code == 200
     data = resp.json()
     assert data["success"] is False
-    assert "smtp_port" in data["message"]
     assert "smtp_user" in data["message"]
-    assert "from_addr" in data["message"]
 
 
 @pytest.mark.asyncio

backend/tests/test_settings.py

@@ -2,6 +2,7 @@
 import json
 
 import pytest
+from unittest.mock import AsyncMock, patch
 from httpx import AsyncClient
 
 from tests.conftest import auth_header
@@ -194,13 +195,15 @@ async def test_delete_notification_channel(client: AsyncClient, admin_token: str
 
 
 @pytest.mark.asyncio
-async def test_notification_test_endpoint(client: AsyncClient, admin_token: str):
+@patch("app.services.notification_sender.NotificationSender.send", new_callable=AsyncMock)
+async def test_notification_test_endpoint(mock_send, client: AsyncClient, admin_token: str):
+    mock_send.return_value = {"success": True, "message": "钉钉测试消息发送成功"}
     create = await client.post(
         "/api/v1/notifications",
         json={
             "name": "钉钉测试",
             "channel_type": "dingtalk",
-            "config": {"webhook_url": "https://oapi.dingtalk.com/robot/send?access_token=test"},
+            "config": {"webhook_url": "https://oapi.dingtalk.com/robot/send?access_token=***"},
             "is_enabled": True,
         },
         headers=auth_header(admin_token),
@@ -365,9 +368,8 @@ async def test_ldap_test_connection(client: AsyncClient, admin_token: str):
     )
     assert resp.status_code == 200
     data = resp.json()
-    # Mock mode should return success
-    assert data["success"] is True
-    assert "Mock" in data["message"]
+    # 测试环境无真实 LDAP 服务器，应返回失败
+    assert data["success"] is False
 
 
 @pytest.mark.asyncio

backend/tests/test_slow_log.py

@@ -1,433 +0,0 @@
-"""慢日志 API 端点测试 — P1 审计闭环。
-
-测试范围:
-- 慢日志列表查看
-- 慢日志收集（需mock数据库连接）
-- 慢日志分析报告
-- 仪表盘 TOP 10 查询
-- 权限控制（仅 admin/dba）
-"""
-import pytest
-import pytest_asyncio
-from unittest.mock import patch, AsyncMock, MagicMock
-from httpx import AsyncClient
-
-from app.core.security import create_access_token, hash_password
-from app.models.user import User
-from app.models.instance import Instance
-from app.services.slow_log_collector import SlowLogCollector, SlowLogEntry, SlowLogReport
-
-
-@pytest_asyncio.fixture
-async def admin_headers(admin_token: str) -> dict:
-    return {"Authorization": f"Bearer {admin_token}"}
-
-
-@pytest_asyncio.fixture
-async def dba_headers(dba_token: str) -> dict:
-    return {"Authorization": f"Bearer {dba_token}"}
-
-
-@pytest_asyncio.fixture
-async def developer_headers(developer_token: str) -> dict:
-    return {"Authorization": f"Bearer {developer_token}"}
-
-
-@pytest_asyncio.fixture
-async def guest_headers(guest_token: str) -> dict:
-    return {"Authorization": f"Bearer {guest_token}"}
-
-
-# ── SlowLogEntry 和 SlowLogReport 单元测试 ──
-
-
-class TestSlowLogModels:
-    """慢日志数据模型测试。"""
-
-    def test_slow_log_entry_to_dict(self):
-        """测试 SlowLogEntry 序列化。"""
-        entry = SlowLogEntry(
-            sql_digest="abc123",
-            sql_text="SELECT * FROM users WHERE id = ?",
-            execution_count=100,
-            avg_time_ms=250.456,
-            max_time_ms=1000.789,
-            min_time_ms=50.123,
-            rows_examined=10000,
-            rows_sent=100,
-            first_seen="2025-01-01 00:00:00",
-            last_seen="2025-01-02 00:00:00",
-        )
-        d = entry.to_dict()
-        assert d["sql_digest"] == "abc123"
-        assert d["execution_count"] == 100
-        assert d["avg_time_ms"] == 250.46  # rounded
-        assert d["rows_examined"] == 10000
-        assert d["first_seen"] == "2025-01-01 00:00:00"
-
-    def test_slow_log_entry_long_sql_truncated(self):
-        """测试长SQL被截断。"""
-        long_sql = "SELECT * FROM t WHERE " + "id = 1 AND " * 100
-        entry = SlowLogEntry(
-            sql_digest="x", sql_text=long_sql,
-            execution_count=1, avg_time_ms=100,
-            max_time_ms=100, min_time_ms=100,
-            rows_examined=1, rows_sent=1,
-        )
-        d = entry.to_dict()
-        assert len(d["sql_text"]) <= 200
-
-    def test_slow_log_report_to_dict(self):
-        """测试 SlowLogReport 序列化。"""
-        entry = SlowLogEntry(
-            sql_digest="abc", sql_text="SELECT 1",
-            execution_count=1, avg_time_ms=100,
-            max_time_ms=100, min_time_ms=100,
-            rows_examined=1, rows_sent=1,
-        )
-        report = SlowLogReport(
-            total_slow_queries=1,
-            avg_execution_time_ms=100.555,
-            max_execution_time_ms=100.0,
-            top_queries=[entry],
-            time_distribution={"00-06": 0, "06-12": 1, "12-18": 0, "18-24": 0},
-        )
-        d = report.to_dict()
-        assert d["total_slow_queries"] == 1
-        assert d["avg_execution_time_ms"] == 100.56
-        assert len(d["top_queries"]) == 1
-        assert d["time_distribution"]["06-12"] == 1
-
-
-# ── SlowLogCollector 单元测试 ──
-
-
-class TestSlowLogCollector:
-    """慢日志收集器单元测试。"""
-
-    def test_save_and_get_slow_logs(self):
-        """测试保存和获取慢日志。"""
-        collector = SlowLogCollector()
-        collector._logs = {}
-
-        entries = [
-            SlowLogEntry(
-                sql_digest=f"digest_{i}", sql_text=f"SELECT {i}",
-                execution_count=i + 1, avg_time_ms=100 * (i + 1),
-                max_time_ms=200 * (i + 1), min_time_ms=10,
-                rows_examined=1000 * (i + 1), rows_sent=10,
-            )
-            for i in range(3)
-        ]
-
-        import asyncio
-        asyncio.get_event_loop().run_until_complete(
-            collector.save_slow_logs(1, entries)
-        )
-
-        logs = collector.get_slow_logs(1)
-        assert len(logs) == 3
-
-    def test_get_slow_logs_empty(self):
-        """测试获取不存在的实例慢日志。"""
-        collector = SlowLogCollector()
-        collector._logs = {}
-        logs = collector.get_slow_logs(999)
-        assert logs == []
-
-    def test_get_report_empty(self):
-        """测试获取空报告。"""
-        collector = SlowLogCollector()
-        collector._logs = {}
-        report = collector.get_report(999)
-        assert report.total_slow_queries == 0
-
-    def test_get_report_with_data(self):
-        """测试获取有数据的报告。"""
-        collector = SlowLogCollector()
-        entries = [
-            SlowLogEntry(
-                sql_digest="d1", sql_text="SELECT * FROM users",
-                execution_count=10, avg_time_ms=500,
-                max_time_ms=1000, min_time_ms=200,
-                rows_examined=50000, rows_sent=100,
-            ),
-            SlowLogEntry(
-                sql_digest="d2", sql_text="SELECT * FROM orders",
-                execution_count=5, avg_time_ms=300,
-                max_time_ms=600, min_time_ms=100,
-                rows_examined=30000, rows_sent=50,
-            ),
-        ]
-
-        import asyncio
-        asyncio.get_event_loop().run_until_complete(
-            collector.save_slow_logs(1, entries)
-        )
-
-        report = collector.get_report(1)
-        assert report.total_slow_queries == 2
-        assert report.max_execution_time_ms == 1000
-        assert len(report.top_queries) <= 20  # TOP 20 max
-
-
-# ── API 端点权限测试 ──
-
-
-class TestSlowLogAPIPermissions:
-    """慢日志 API 权限控制测试。"""
-
-    @pytest.mark.asyncio
-    async def test_list_slow_logs_unauthorized(self, client: AsyncClient):
-        """测试未认证访问。"""
-        resp = await client.get("/api/v1/slow-logs/instances/1")
-        assert resp.status_code == 401
-
-    @pytest.mark.asyncio
-    async def test_list_slow_logs_developer_forbidden(
-        self, client: AsyncClient, developer_headers: dict
-    ):
-        """测试开发者无权查看慢日志。"""
-        resp = await client.get(
-            "/api/v1/slow-logs/instances/1",
-            headers=developer_headers,
-        )
-        assert resp.status_code == 403
-
-    @pytest.mark.asyncio
-    async def test_list_slow_logs_guest_forbidden(
-        self, client: AsyncClient, guest_headers: dict
-    ):
-        """测试访客无权查看慢日志。"""
-        resp = await client.get(
-            "/api/v1/slow-logs/instances/1",
-            headers=guest_headers,
-        )
-        assert resp.status_code == 403
-
-    @pytest.mark.asyncio
-    async def test_collect_slow_logs_developer_forbidden(
-        self, client: AsyncClient, developer_headers: dict
-    ):
-        """测试开发者无权收集慢日志。"""
-        resp = await client.post(
-            "/api/v1/slow-logs/instances/1/collect",
-            headers=developer_headers,
-        )
-        assert resp.status_code == 403
-
-    @pytest.mark.asyncio
-    async def test_report_developer_forbidden(
-        self, client: AsyncClient, developer_headers: dict
-    ):
-        """测试开发者无权查看报告。"""
-        resp = await client.get(
-            "/api/v1/slow-logs/instances/1/report",
-            headers=developer_headers,
-        )
-        assert resp.status_code == 403
-
-
-# ── API 端点功能测试 ──
-
-
-class TestSlowLogAPIFunctional:
-    """慢日志 API 功能测试。"""
-
-    @pytest.mark.asyncio
-    async def test_list_slow_logs_not_found(
-        self, client: AsyncClient, admin_headers: dict, db
-    ):
-        """测试查看不存在实例的慢日志。"""
-        resp = await client.get(
-            "/api/v1/slow-logs/instances/999",
-            headers=admin_headers,
-        )
-        assert resp.status_code == 404
-
-    @pytest.mark.asyncio
-    async def test_list_slow_logs_empty(
-        self, client: AsyncClient, admin_headers: dict, test_instance
-    ):
-        """测试查看实例慢日志（空列表）。"""
-        collector = SlowLogCollector()
-        collector._logs = {}
-
-        with patch.object(SlowLogCollector, '_logs', {}):
-            resp = await client.get(
-                f"/api/v1/slow-logs/instances/{test_instance.id}",
-                headers=admin_headers,
-            )
-            assert resp.status_code == 200
-            data = resp.json()
-            assert data["instance_id"] == test_instance.id
-            assert data["total"] == 0
-            assert data["logs"] == []
-
-    @pytest.mark.asyncio
-    async def test_list_slow_logs_with_data(
-        self, client: AsyncClient, admin_headers: dict, test_instance
-    ):
-        """测试查看实例慢日志（有数据）。"""
-        entries = [
-            SlowLogEntry(
-                sql_digest="d1", sql_text="SELECT * FROM users",
-                execution_count=10, avg_time_ms=500,
-                max_time_ms=1000, min_time_ms=200,
-                rows_examined=50000, rows_sent=100,
-            ),
-        ]
-
-        collector = SlowLogCollector()
-        collector._logs = {test_instance.id: entries}
-
-        with patch.object(SlowLogCollector, '_logs', {test_instance.id: entries}):
-            resp = await client.get(
-                f"/api/v1/slow-logs/instances/{test_instance.id}",
-                headers=admin_headers,
-            )
-            assert resp.status_code == 200
-            data = resp.json()
-            assert data["total"] == 1
-            assert data["logs"][0]["sql_digest"] == "d1"
-
-    @pytest.mark.asyncio
-    async def test_collect_slow_logs_unsupported_type(
-        self, client: AsyncClient, admin_headers: dict, db
-    ):
-        """测试收集不支持类型的慢日志。"""
-        # 创建Redis实例（redis不支持慢日志收集）
-        instance = Instance(
-            name="测试Redis", db_type="redis",
-            host="127.0.0.1", port=6379,
-            username="", password="test123",
-            database="0", env="development",
-            status="disconnected",
-        )
-        db.add(instance)
-        await db.commit()
-        await db.refresh(instance)
-
-        # endpoint先解密密码再检查类型，可能返回400或500
-        resp = await client.post(
-            f"/api/v1/slow-logs/instances/{instance.id}/collect",
-            headers=admin_headers,
-        )
-        # 接受400（不支持类型）或500（解密/连接错误）
-        assert resp.status_code in (400, 500)
-
-    @pytest.mark.asyncio
-    async def test_collect_slow_logs_not_found(
-        self, client: AsyncClient, admin_headers: dict
-    ):
-        """测试收集不存在实例的慢日志。"""
-        resp = await client.post(
-            "/api/v1/slow-logs/instances/999/collect",
-            headers=admin_headers,
-        )
-        assert resp.status_code == 404
-
-    @pytest.mark.asyncio
-    async def test_report_not_found(
-        self, client: AsyncClient, admin_headers: dict
-    ):
-        """测试获取不存在实例的报告。"""
-        resp = await client.get(
-            "/api/v1/slow-logs/instances/999/report",
-            headers=admin_headers,
-        )
-        # 报告端点不检查实例存在性，返回空报告
-        assert resp.status_code == 200
-
-    @pytest.mark.asyncio
-    async def test_dashboard_top_queries(
-        self, client: AsyncClient, admin_headers: dict
-    ):
-        """测试仪表盘 TOP 查询。"""
-        collector = SlowLogCollector()
-        collector._logs = {}
-
-        with patch.object(SlowLogCollector, '_logs', {}):
-            resp = await client.get(
-                "/api/v1/slow-logs/dashboard/top",
-                headers=admin_headers,
-            )
-            assert resp.status_code == 200
-            data = resp.json()
-            assert "total_instances" in data
-            assert "top_queries" in data
-
-    @pytest.mark.asyncio
-    async def test_dashboard_top_queries_with_data(
-        self, client: AsyncClient, admin_headers: dict
-    ):
-        """测试仪表盘 TOP 查询（有数据）。"""
-        entries = [
-            SlowLogEntry(
-                sql_digest=f"d{i}", sql_text=f"SELECT {i}",
-                execution_count=i + 1, avg_time_ms=100 * (i + 1),
-                max_time_ms=200 * (i + 1), min_time_ms=10,
-                rows_examined=1000, rows_sent=10,
-            )
-            for i in range(15)
-        ]
-
-        with patch.object(SlowLogCollector, '_logs', {1: entries}):
-            resp = await client.get(
-                "/api/v1/slow-logs/dashboard/top",
-                headers=admin_headers,
-            )
-            assert resp.status_code == 200
-            data = resp.json()
-            assert data["total_instances"] == 1
-            assert len(data["top_queries"]) <= 10  # TOP 10
-
-    @pytest.mark.asyncio
-    async def test_dba_can_access_slow_logs(
-        self, client: AsyncClient, dba_headers: dict, test_instance
-    ):
-        """测试DBA可以查看慢日志。"""
-        with patch.object(SlowLogCollector, '_logs', {}):
-            resp = await client.get(
-                f"/api/v1/slow-logs/instances/{test_instance.id}",
-                headers=dba_headers,
-            )
-            assert resp.status_code == 200
-
-    @pytest.mark.asyncio
-    async def test_dba_can_collect_slow_logs(
-        self, client: AsyncClient, dba_headers: dict, test_instance
-    ):
-        """测试DBA可以收集慢日志。"""
-        # mock collect方法避免真实数据库连接
-        mock_entries = [
-            SlowLogEntry(
-                sql_digest="d1", sql_text="SELECT 1",
-                execution_count=1, avg_time_ms=100,
-                max_time_ms=100, min_time_ms=100,
-                rows_examined=1, rows_sent=1,
-            )
-        ]
-        with patch.object(
-            SlowLogCollector, 'collect_mysql_slow_logs',
-            return_value=mock_entries
-        ):
-            resp = await client.post(
-                f"/api/v1/slow-logs/instances/{test_instance.id}/collect",
-                headers=dba_headers,
-            )
-            # 可能500因为save方法，但至少不被403拒绝
-            assert resp.status_code in (200, 500)
-
-    @pytest.mark.asyncio
-    async def test_dashboard_any_authenticated_user(
-        self, client: AsyncClient, developer_headers: dict
-    ):
-        """测试仪表盘TOP查询对所有登录用户开放。"""
-        with patch.object(SlowLogCollector, '_logs', {}):
-            resp = await client.get(
-                "/api/v1/slow-logs/dashboard/top",
-                headers=developer_headers,
-            )
-            # dashboard/top 使用 get_current_user（不是 require_role）
-            assert resp.status_code == 200

frontend/src/App.tsx

@@ -21,7 +21,6 @@ import MongoDBDetailPage from '@/pages/MongoDBDetailPage';
 import TicketCreatePage from '@/pages/TicketCreatePage';
 import TicketDetailPage from '@/pages/TicketDetailPage';
 import InstanceGroupPage from '@/pages/InstanceGroupPage';
-// import SlowQueryPage from '@/pages/SlowQueryPage';
 
 // 路由守卫：未登录跳转登录页，无权限跳转仪表盘
 function RouteGuard() {

frontend/src/api/instanceDetail.ts

@@ -21,10 +21,6 @@ export const instanceDetailApi = {
   getGrants: (id: number, user: string, host: string) =>
     request.get<any, any>('/instances/' + id + '/detail/grants', { params: { user: user, host: host } }),
 
-  // Slow Queries
-  getSlowQueries: (id: number, database?: string) =>
-    request.get<any, any[]>('/instances/' + id + '/detail/slow-queries', { params: database ? { database: database } : {} }),
-
   // Processlist
   getProcesslist: (id: number) =>
     request.get<any, any[]>('/instances/' + id + '/detail/processlist'),

frontend/src/api/redis.ts

@@ -1,37 +1,31 @@
 import request from './request';
 
-export var redisApi = {
-  getInfo: function (id: number) {
-    return request.get('/redis/' + id + '/info');
-  },
-  getDbsize: function (id: number, db: number) {
-    return request.get('/redis/' + id + '/dbsize', { params: { db: db } });
-  },
-  getKeys: function (id: number, params: Record<string, any>) {
-    return request.get('/redis/' + id + '/keys', { params: params });
-  },
-  getKeyDetail: function (id: number, key: string, db: number) {
-    return request.get('/redis/' + id + '/keys/' + encodeURIComponent(key), { params: { db: db } });
-  },
-  createKey: function (id: number, data: Record<string, any>) {
-    return request.post('/redis/' + id + '/keys', data);
-  },
-  deleteKey: function (id: number, key: string, db: number) {
-    return request.delete('/redis/' + id + '/keys/' + encodeURIComponent(key), { params: { db: db } });
-  },
-  setExpire: function (id: number, key: string, data: Record<string, any>) {
-    return request.put('/redis/' + id + '/keys/' + encodeURIComponent(key) + '/expire', data);
-  },
-  flushDb: function (id: number, db: number) {
-    return request.delete('/redis/' + id + '/flushdb', { params: { db: db } });
-  },
-  executeCommand: function (id: number, data: Record<string, any>) {
-    return request.post('/redis/' + id + '/command', data);
-  },
-  getSlowlog: function (id: number, count: number) {
-    return request.get('/redis/' + id + '/slowlog', { params: { count: count } });
-  },
-  getClients: function (id: number) {
-    return request.get('/redis/' + id + '/clients');
-  },
+export const redisApi = {
+  // Redis 信息概览
+  getInfo: (instanceId: number) =>
+    request.get<any, any>('/redis/' + instanceId + '/info'),
+
+  // DBSIZE
+  getDbsize: (instanceId: number, db?: number) =>
+    request.get<any, any>('/redis/' + instanceId + '/dbsize', { params: { db: db ?? 0 } }),
+
+  // 键列表
+  scanKeys: (instanceId: number, params: { db?: number; pattern?: string; cursor?: number; count?: number; type?: string }) =>
+    request.get<any, any>('/redis/' + instanceId + '/keys', { params }),
+
+  // 键详情
+  getKeyDetail: (instanceId: number, key: string, db?: number) =>
+    request.get<any, any>('/redis/' + instanceId + '/keys/' + encodeURIComponent(key), { params: { db: db ?? 0 } }),
+
+  // 慢日志
+  getSlowlog: (instanceId: number, count?: number) =>
+    request.get<any, any>('/redis/' + instanceId + '/slowlog', { params: { count: count ?? 10 } }),
+
+  // 客户端列表
+  getClients: (instanceId: number) =>
+    request.get<any, any>('/redis/' + instanceId + '/clients'),
+
+  // 执行命令
+  executeCommand: (instanceId: number, data: { db: number; command: string }) =>
+    request.post<any, any>('/redis/' + instanceId + '/command', data),
 };

frontend/src/api/slowLog.ts

@@ -1,17 +0,0 @@
-import request from './request';
-
-export const slowLogApi = {
-  list: (instanceId: number) =>
-    request.get<any, any>(`/slow-logs/instances/${instanceId}`),
-
-  collect: (instanceId: number, database: string = '', limit: number = 50) =>
-    request.post<any, any>(`/slow-logs/instances/${instanceId}/collect`, null, {
-      params: { database, limit },
-    }),
-
-  report: (instanceId: number) =>
-    request.get<any, any>(`/slow-logs/instances/${instanceId}/report`),
-
-  topQueries: () =>
-    request.get<any, any>('/slow-logs/dashboard/top'),
-};

frontend/src/lib/queryTemplates.ts

@@ -28,18 +28,6 @@ export const queryTemplates: QueryTemplate[] = [
     },
     supportedTypes: ['mysql', 'postgresql', 'mongodb'],
   },
-  {
-    id: 'slow-queries',
-    name: '查询慢SQL',
-    description: '查看慢查询日志，定位执行时间较长的SQL语句',
-    category: '性能分析',
-    sql: {
-      mysql: 'SELECT * FROM mysql.slow_log LIMIT 20;',
-      postgresql:
-        'SELECT * FROM pg_stat_statements ORDER BY total_time DESC LIMIT 20;',
-    },
-    supportedTypes: ['mysql', 'postgresql'],
-  },
   {
     id: 'table-size',
     name: '查询表大小',

frontend/src/pages/Dashboard.tsx

@@ -7,7 +7,7 @@ import {
   Filter, Eye, BarChart3,
 } from 'lucide-react';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import { statusMap, statusColorMap, dbTypeColorMap } from '@/lib/mock';
+import { statusMap, statusColorMap, dbTypeColorMap } from '@/lib/constants';
 import type { DBInstance } from '@/types';
 import { useTheme } from '@/hooks/useTheme';
 import { useAuth } from '@/hooks/useAuth';
@@ -159,14 +159,7 @@ export default function Dashboard() {
   useEffect(() => {
     dashboardApi.getStats()
       .then(data => setStats(data))
-      .catch(() => {
-        /* fallback: mock data */
-        setStats({
-          ticket_total: 128, ticket_pending: 23, ticket_month: 342,
-          ticket_executing: 3, instance_total: 11, instance_online: 8,
-          user_total: 7, queries_today: 15234,
-        });
-      })
+      .catch(() => setStats(null))
       .finally(() => setLoading(false));
   }, []);
 
@@ -348,7 +341,6 @@ export default function Dashboard() {
     { label: '新建工单', icon: FileText, href: '/tickets', color: 'text-blue-400', bg: 'bg-blue-400/10', border: 'border-blue-400/20' },
     { label: '新建查询', icon: Search, href: '/queries', color: 'text-green-400', bg: 'bg-green-400/10', border: 'border-green-400/20' },
     { label: '添加实例', icon: Database, href: '/instances', color: 'text-purple-400', bg: 'bg-purple-400/10', border: 'border-purple-400/20' },
-    { label: '查看报表', icon: BarChart3, href: '/slow-query', color: 'text-orange-400', bg: 'bg-orange-400/10', border: 'border-orange-400/20' },
   ];
 
   const TrendIcon = ({ trend }: { trend: 'up' | 'down' | 'neutral' }) => {

frontend/src/pages/InstanceDetailPage.tsx

@@ -1,6 +1,6 @@
 import { useState, useEffect } from 'react';
 import { useParams, useNavigate } from 'react-router-dom';
-import { ArrowLeft, Database, Table2, Users, Clock, Cpu, Play, RefreshCw } from 'lucide-react';
+import { ArrowLeft, Database, Table2, Users, Cpu, Play, RefreshCw } from 'lucide-react';
 import { instanceDetailApi } from '@/api/instanceDetail';
 import { instanceApi } from '@/api/instance';
 import { queryApi } from '@/api/query';
@@ -10,7 +10,7 @@ interface InstanceInfo {
   status: string; version: string | null; env: string;
 }
 
-type TabKey = 'overview' | 'tables' | 'query' | 'users' | 'slow' | 'process';
+type TabKey = 'overview' | 'tables' | 'query' | 'users' | 'process';
 
 export default function InstanceDetailPage() {
   var params = useParams<{ id: string }>();
@@ -23,7 +23,6 @@ export default function InstanceDetailPage() {
   var [selectedDb, setSelectedDb] = useState('');
   var [tables, setTables] = useState<any[]>([]);
   var [users, setUsers] = useState<any[]>([]);
-  var [slowQueries, setSlowQueries] = useState<any[]>([]);
   var [processes, setProcesses] = useState<any[]>([]);
   var [sqlText, setSqlText] = useState('');
   var [queryResult, setQueryResult] = useState<any>(null);
@@ -34,7 +33,6 @@ export default function InstanceDetailPage() {
     { key: 'tables', label: '表管理', icon: Table2 },
     { key: 'query', label: 'SQL查询', icon: Play },
     { key: 'users', label: '用户权限', icon: Users },
-    { key: 'slow', label: '慢查询', icon: Clock },
     { key: 'process', label: '进程列表', icon: Cpu },
   ];
 
@@ -57,11 +55,6 @@ export default function InstanceDetailPage() {
         setUsers(res.users || res || []);
       }).catch(function () { setUsers([]); });
     }
-    if (activeTab === 'slow') {
-      instanceDetailApi.getSlowQueries(instanceId, selectedDb).then(function (res: any) {
-        setSlowQueries(res.queries || res || []);
-      }).catch(function () { setSlowQueries([]); });
-    }
     if (activeTab === 'process') {
       instanceDetailApi.getProcesslist(instanceId).then(function (res: any) {
         setProcesses(res.processes || res || []);
@@ -236,28 +229,6 @@ export default function InstanceDetailPage() {
         </div>
       )}
 
-      {/* 慢查询 */}
-      {activeTab === 'slow' && (
-        <div className="overflow-x-auto">
-          <table className="w-full text-sm">
-            <thead><tr className="text-left text-[var(--dg-text-muted)] border-b border-[var(--dg-border)]">
-              <th className="px-4 py-2">SQL</th><th className="px-4 py-2">执行时间</th><th className="px-4 py-2">扫描行数</th><th className="px-4 py-2">时间</th>
-            </tr></thead>
-            <tbody>
-              {slowQueries.map(function (q: any, i: number) {
-                return <tr key={i} className="border-b border-[var(--dg-border)] hover:bg-[var(--dg-bg-hover)]">
-                  <td className="px-4 py-2 max-w-md truncate font-mono text-xs">{q.sql_text || q.SQL || '-'}</td>
-                  <td className="px-4 py-2">{q.query_time || q.Time || '-'}</td>
-                  <td className="px-4 py-2">{q.rows_examined || q.ScanRows || '-'}</td>
-                  <td className="px-4 py-2">{q.start_time || q.Timestamp || '-'}</td>
-                </tr>;
-              })}
-            </tbody>
-          </table>
-          {slowQueries.length === 0 && <div className="text-center py-8 text-[var(--dg-text-muted)]">暂无慢查询记录</div>}
-        </div>
-      )}
-
       {/* 进程列表 */}
       {activeTab === 'process' && (
         <div className="overflow-x-auto">

frontend/src/pages/InstanceGroupPage.tsx

@@ -74,7 +74,6 @@ const PERMISSION_CATEGORIES: PermissionCategory[] = [
     label: '管理权限',
     items: [
       { code: 'instance:connect', name: '连接实例' },
-      { code: 'instance:view_slow_query', name: '查看慢查询' },
       { code: 'instance:kill_process', name: '终止进程' },
     ],
   },

frontend/src/pages/RolesPage.tsx

@@ -5,7 +5,7 @@ import {
   CheckCircle2, MinusCircle, Sparkles, ChevronDown,
 } from 'lucide-react';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import { permissionTreeData } from '@/lib/mock';
+import { permissionTreeData } from '@/lib/constants';
 
 /* ───────── Types ───────── */
 

frontend/src/pages/SlowQueryPage.tsx

@@ -1,967 +0,0 @@
-import { useState, useEffect, useCallback, useMemo } from 'react';
-import {
-  Search, Clock, Database, AlertTriangle, ChevronDown, ChevronRight,
-  BarChart3, Play, Loader2, RefreshCw, Download, Lightbulb, X,
-  GitCompare, XCircle, Skull, Zap, CheckCircle2,
-} from 'lucide-react';
-import {
-  BarChart, Bar, XAxis, YAxis, Tooltip, ResponsiveContainer, CartesianGrid,
-  LineChart, Line, PieChart, Pie, Cell, Legend,
-} from 'recharts';
-import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import PageHeader from '@/components/PageHeader';
-import { instanceApi } from '@/api/instance';
-import { slowLogApi } from '@/api/slowLog';
-
-/* ───────── Types ───────── */
-
-interface SlowLogItem {
-  id: string;
-  sql: string;
-  start_time: string;
-  query_time: number;
-  lock_time: number;
-  rows_sent: number;
-  rows_examined: number;
-  database: string;
-  user?: string;
-  host?: string;
-}
-
-interface TopQuery {
-  sql: string;
-  count: number;
-  avg_time_ms: number;
-  max_time_ms: number;
-  total_time_ms: number;
-}
-
-interface OptimizationSuggestion {
-  id: string;
-  level: 'critical' | 'warning' | 'info';
-  title: string;
-  description: string;
-  suggestion: string;
-}
-
-interface InstanceOption {
-  id: number;
-  name: string;
-  host: string;
-  db_type: string;
-}
-
-/* ───────── Helpers ───────── */
-
-function formatQueryTime(seconds: number): string {
-  if (seconds >= 1) return `${seconds.toFixed(2)}s`;
-  return `${(seconds * 1000).toFixed(0)}ms`;
-}
-
-function queryTimeColor(seconds: number): string {
-  if (seconds > 5) return 'text-red-400';
-  if (seconds > 1) return 'text-orange-400';
-  if (seconds > 0.5) return 'text-yellow-400';
-  return 'text-[var(--dg-text-primary)]';
-}
-
-function queryTimeBg(seconds: number): string {
-  if (seconds > 5) return 'bg-red-500/10';
-  if (seconds > 1) return 'bg-orange-500/10';
-  if (seconds > 0.5) return 'bg-yellow-500/10';
-  return '';
-}
-
-function truncateSql(sql: string, max: number): string {
-  const oneLine = sql.replace(/\n/g, ' ').replace(/\s+/g, ' ').trim();
-  if (oneLine.length <= max) return oneLine;
-  return oneLine.slice(0, max) + '\u2026';
-}
-
-function generateSuggestions(log: SlowLogItem): OptimizationSuggestion[] {
-  const suggestions: OptimizationSuggestion[] = [];
-
-  if (log.query_time > 3) {
-    suggestions.push({
-      id: 'slow-critical',
-      level: 'critical',
-      title: '查询耗时过长',
-      description: `查询耗时 ${formatQueryTime(log.query_time)}，严重影响用户体验`,
-      suggestion: '考虑添加合适的索引，或优化查询条件以减少扫描行数。使用 EXPLAIN 分析查询计划。',
-    });
-  }
-
-  if (log.rows_examined > log.rows_sent * 1000) {
-    suggestions.push({
-      id: 'scan-ratio',
-      level: 'critical',
-      title: '扫描行数与返回行数比例过高',
-      description: `扫描了 ${log.rows_examined.toLocaleString()} 行，仅返回 ${log.rows_sent.toLocaleString()} 行`,
-      suggestion: 'WHERE 条件可能未命中索引，或缺少合适的索引。检查查询条件的字段是否已建立索引。',
-    });
-  }
-
-  if (log.lock_time > 0.5) {
-    suggestions.push({
-      id: 'lock-time',
-      level: 'warning',
-      title: '锁等待时间过长',
-      description: `锁等待时间 ${formatQueryTime(log.lock_time)}，可能导致并发性能下降`,
-      suggestion: '检查是否存在长时间运行的事务。考虑使用更细粒度的锁或优化事务隔离级别。',
-    });
-  }
-
-  const lowerSql = log.sql.toLowerCase();
-  if (lowerSql.includes('select *')) {
-    suggestions.push({
-      id: 'select-star',
-      level: 'warning',
-      title: '使用 SELECT *',
-      description: '查询使用了 SELECT *，可能返回不必要的列',
-      suggestion: '明确指定需要的列名，减少数据传输量和内存占用。',
-    });
-  }
-
-  if (lowerSql.includes('order by') && !lowerSql.includes('index')) {
-    suggestions.push({
-      id: 'sort-filesort',
-      level: 'info',
-      title: 'ORDER BY 可能需要文件排序',
-      description: '使用 ORDER BY 但未利用索引排序',
-      suggestion: '考虑在 ORDER BY 字段上建立索引，避免 Using filesort。',
-    });
-  }
-
-  if (lowerSql.includes('like') && lowerSql.includes("'%" )) {
-    suggestions.push({
-      id: 'like-prefix',
-      level: 'info',
-      title: '前缀模糊查询无法使用索引',
-      description: 'LIKE 以 % 开头会导致全表扫描',
-      suggestion: '考虑使用全文索引（FULLTEXT），或使用 reverse() 函数优化右模糊查询。',
-    });
-  }
-
-  if (suggestions.length === 0) {
-    suggestions.push({
-      id: 'general',
-      level: 'info',
-      title: '一般性建议',
-      description: `查询执行时间 ${formatQueryTime(log.query_time)}`,
-      suggestion: '定期分析表（ANALYZE TABLE）以保持统计信息最新，确保查询优化器选择最优执行计划。',
-    });
-  }
-
-  return suggestions;
-}
-
-function exportSlowQueryReport(logs: SlowLogItem[], topQueries: TopQuery[]) {
-  const lines: string[] = [];
-  lines.push('# 慢查询分析报告');
-  lines.push(`生成时间: ${new Date().toLocaleString('zh-CN')}`);
-  lines.push(`慢查询数量: ${logs.length}`);
-  lines.push('');
-  lines.push('## TOP 查询');
-  topQueries.forEach((q, i) => {
-    lines.push(`\n### #${i + 1}`);
-    lines.push(`- SQL: ${q.sql}`);
-    lines.push(`- 执行次数: ${q.count}`);
-    lines.push(`- 平均时间: ${q.avg_time_ms.toFixed(1)}ms`);
-    lines.push(`- 最大时间: ${q.max_time_ms.toFixed(1)}ms`);
-    lines.push(`- 总时间: ${q.total_time_ms.toFixed(1)}ms`);
-  });
-  lines.push('\n## 慢查询明细');
-  logs.forEach(l => {
-    lines.push(`\n- [${formatQueryTime(l.query_time)}] ${truncateSql(l.sql, 100)}`);
-  });
-
-  const text = lines.join('\n');
-  const blob = new Blob([text], { type: 'text/markdown' });
-  const url = URL.createObjectURL(blob);
-  const a = document.createElement('a');
-  a.href = url;
-  a.download = `slow_query_report_${new Date().toISOString().slice(0, 10)}.md`;
-  a.click();
-  URL.revokeObjectURL(url);
-}
-
-/* ───────── Constants ───────── */
-
-const CHART_COLORS = ['#6366f1', '#a855f7', '#ec4899', '#f43f5e', '#f97316', '#eab308', '#22c55e', '#06b6d4'];
-
-const SUGGESTION_COLORS: Record<string, { border: string; bg: string; icon: React.ElementType }> = {
-  critical: { border: 'border-red-500/30', bg: 'bg-red-500/10', icon: AlertTriangle },
-  warning: { border: 'border-yellow-500/30', bg: 'bg-yellow-500/10', icon: Zap },
-  info: { border: 'border-blue-500/30', bg: 'bg-blue-500/10', icon: Lightbulb },
-};
-
-/* ───────── Component ───────── */
-
-export default function SlowQueryPage() {
-  const [instances, setInstances] = useState<InstanceOption[]>([]);
-  const [selectedInstanceId, setSelectedInstanceId] = useState<number | null>(null);
-  const [instancesLoading, setInstancesLoading] = useState(false);
-
-  const [activeTab, setActiveTab] = useState<'logs' | 'top' | 'trend'>('logs');
-
-  const [logs, setLogs] = useState<SlowLogItem[]>([]);
-  const [logsTotal, setLogsTotal] = useState(0);
-  const [logsLoading, setLogsLoading] = useState(false);
-  const [expandedSqlIds, setExpandedSqlIds] = useState<Set<string>>(new Set());
-  const [expandedRowId, setExpandedRowId] = useState<string | null>(null);
-
-  const [topQueries, setTopQueries] = useState<TopQuery[]>([]);
-  const [topLoading, setTopLoading] = useState(false);
-
-  const [collecting, setCollecting] = useState(false);
-  const [message, setMessage] = useState<{ text: string; type: 'success' | 'error' } | null>(null);
-
-  // Compare state
-  const [compareIds, setCompareIds] = useState<Set<string>>(new Set());
-  const [showCompare, setShowCompare] = useState(false);
-
-  // Kill query state
-  const [killingId, setKillingId] = useState<string | null>(null);
-
-  const fetchInstances = useCallback(async () => {
-    setInstancesLoading(true);
-    try {
-      const res = await instanceApi.list({});
-      const data: InstanceOption[] = Array.isArray(res) ? res : [];
-      setInstances(data);
-      if (data.length > 0 && !selectedInstanceId) {
-        setSelectedInstanceId(data[0].id);
-      }
-    } catch {
-      // keep existing
-    } finally {
-      setInstancesLoading(false);
-    }
-  }, [selectedInstanceId]);
-
-  useEffect(() => { fetchInstances(); }, [fetchInstances]);
-
-  const fetchLogs = useCallback(async () => {
-    if (!selectedInstanceId) return;
-    setLogsLoading(true);
-    try {
-      const res = await slowLogApi.list(selectedInstanceId);
-      setLogs(res.logs || []);
-      setLogsTotal(res.total || 0);
-    } catch {
-      setLogs([]);
-    } finally {
-      setLogsLoading(false);
-    }
-  }, [selectedInstanceId]);
-
-  const fetchTopQueries = useCallback(async () => {
-    setTopLoading(true);
-    try {
-      const res = await slowLogApi.topQueries();
-      setTopQueries(res.queries || []);
-    } catch {
-      setTopQueries([]);
-    } finally {
-      setTopLoading(false);
-    }
-  }, []);
-
-  useEffect(() => {
-    if (activeTab === 'logs') fetchLogs();
-    if (activeTab === 'top' || activeTab === 'trend') fetchTopQueries();
-  }, [activeTab, fetchLogs, fetchTopQueries]);
-
-  const handleCollect = async () => {
-    if (!selectedInstanceId) return;
-    setCollecting(true);
-    setMessage(null);
-    try {
-      const res = await slowLogApi.collect(selectedInstanceId, '', 100);
-      setMessage({ text: `成功收集 ${res.collected} 条慢日志`, type: 'success' });
-      fetchLogs();
-    } catch {
-      setMessage({ text: '收集慢日志失败', type: 'error' });
-    } finally {
-      setCollecting(false);
-    }
-  };
-
-  const handleKillQuery = async (logId: string) => {
-    if (!confirm('确定要终止该查询吗？')) return;
-    setKillingId(logId);
-    try {
-      // In real implementation: await slowLogApi.kill(selectedInstanceId, logId);
-      await new Promise(r => setTimeout(r, 500));
-      setMessage({ text: '查询已终止', type: 'success' });
-      setExpandedRowId(null);
-    } catch {
-      setMessage({ text: '终止查询失败', type: 'error' });
-    } finally {
-      setKillingId(null);
-    }
-  };
-
-  const toggleCompare = (id: string) => {
-    setCompareIds(prev => {
-      const next = new Set(prev);
-      if (next.has(id)) {
-        next.delete(id);
-      } else if (next.size < 2) {
-        next.add(id);
-      }
-      return next;
-    });
-  };
-
-  const toggleSqlExpand = (id: string) => {
-    setExpandedSqlIds(prev => {
-      const next = new Set(prev);
-      if (next.has(id)) next.delete(id); else next.add(id);
-      return next;
-    });
-  };
-
-  const toggleRowExpand = (id: string) => {
-    setExpandedRowId(prev => (prev === id ? null : id));
-  };
-
-  // Chart data
-  const chartData = topQueries.slice(0, 10).map((q, idx) => ({
-    name: `#${idx + 1}`,
-    avgTime: q.avg_time_ms,
-    maxTime: q.max_time_ms,
-    count: q.count,
-    sql: truncateSql(q.sql, 50),
-  }));
-
-  // Time distribution for pie chart
-  const timeDistribution = useMemo(() => {
-    const ranges = [
-      { label: '< 500ms', min: 0, max: 0.5 },
-      { label: '500ms - 1s', min: 0.5, max: 1 },
-      { label: '1s - 3s', min: 1, max: 3 },
-      { label: '3s - 5s', min: 3, max: 5 },
-      { label: '> 5s', min: 5, max: Infinity },
-    ];
-    return ranges.map((r, i) => ({
-      name: r.label,
-      value: logs.filter(l => l.query_time >= r.min && l.query_time < r.max).length,
-      color: CHART_COLORS[i],
-    })).filter(r => r.value > 0);
-  }, [logs]);
-
-  // Trend data
-  const trendData = useMemo(() => {
-    const map: Record<string, { count: number; avgTime: number }> = {};
-    logs.forEach(l => {
-      const d = new Date(l.start_time).toLocaleDateString('zh-CN', { month: '2-digit', day: '2-digit' });
-      if (!map[d]) map[d] = { count: 0, avgTime: 0 };
-      map[d].count += 1;
-      map[d].avgTime += l.query_time;
-    });
-    return Object.entries(map)
-      .sort(([a], [b]) => new Date(a).getTime() - new Date(b).getTime())
-      .slice(-14)
-      .map(([date, v]) => ({
-        date,
-        count: v.count,
-        avgTime: v.avgTime / v.count * 1000,
-      }));
-  }, [logs]);
-
-  const selectedInstance = instances.find(i => i.id === selectedInstanceId);
-  const compareLogs = logs.filter(l => compareIds.has(l.id));
-
-  return (
-    <div className="space-y-5">
-      {/* Page Header */}
-      <PageHeader
-        title="慢查询分析"
-        description="数据库慢查询监控与性能分析"
-      />
-
-      {/* Controls bar */}
-      <Card className="dg-card">
-        <CardContent className="p-4">
-          <div className="flex items-center gap-3 flex-wrap">
-            <div className="flex items-center gap-2">
-              <Database className="w-4 h-4 text-[var(--dg-text-muted)]" />
-              <select
-                value={selectedInstanceId ?? ''}
-                onChange={e => setSelectedInstanceId(Number(e.target.value) || null)}
-                className="px-3 py-2.5 bg-[var(--dg-bg-tertiary)] border border-[var(--dg-border)] rounded-lg text-sm focus:border-blue-400 focus:outline-none min-w-[200px]"
-              >
-                {instancesLoading ? (
-                  <option>加载中...</option>
-                ) : (
-                  instances.map(inst => (
-                    <option key={inst.id} value={inst.id}>{inst.name} ({inst.host})</option>
-                  ))
-                )}
-              </select>
-            </div>
-
-            <button
-              onClick={handleCollect}
-              disabled={collecting || !selectedInstanceId}
-              className="flex items-center gap-2 px-4 py-2.5 bg-gradient-to-r from-blue-500 to-purple-600 rounded-lg text-sm font-medium text-white hover:opacity-90 transition-opacity disabled:opacity-50 disabled:cursor-not-allowed"
-            >
-              {collecting ? <Loader2 className="w-4 h-4 animate-spin" /> : <Play className="w-4 h-4" />}
-              收集慢日志
-            </button>
-
-            <button
-              onClick={() => exportSlowQueryReport(logs, topQueries)}
-              disabled={logs.length === 0}
-              className="flex items-center gap-2 px-4 py-2.5 bg-[var(--dg-bg-tertiary)] border border-[var(--dg-border)] rounded-lg text-sm font-medium text-[var(--dg-text-primary)] hover:bg-[var(--dg-bg-hover)] transition-all disabled:opacity-50 disabled:cursor-not-allowed"
-            >
-              <Download className="w-4 h-4" />
-              导出报告
-            </button>
-
-            {/* Compare button */}
-            {compareIds.size > 0 && (
-              <button
-                onClick={() => setShowCompare(true)}
-                className="flex items-center gap-2 px-4 py-2.5 bg-blue-500/15 border border-blue-500/30 rounded-lg text-sm font-medium text-blue-400 hover:bg-blue-500/25 transition-all"
-              >
-                <GitCompare className="w-4 h-4" />
-                对比 ({compareIds.size})
-              </button>
-            )}
-
-            <button
-              onClick={() => { if (activeTab === 'logs') fetchLogs(); else fetchTopQueries(); }}
-              className="flex items-center gap-2 px-3 py-2.5 bg-[var(--dg-bg-tertiary)] border border-[var(--dg-border)] rounded-lg text-sm text-[var(--dg-text-secondary)] hover:bg-[var(--dg-bg-hover)] transition-all"
-            >
-              <RefreshCw className="w-4 h-4" />
-            </button>
-
-            {selectedInstance && (
-              <span className="text-xs text-[var(--dg-text-muted)] ml-auto">
-                已选实例: {selectedInstance.name}
-              </span>
-            )}
-          </div>
-
-          {/* Toast message */}
-          {message && (
-            <div className={`mt-3 px-4 py-2.5 rounded-lg text-sm flex items-center gap-2 ${
-              message.type === 'success'
-                ? 'bg-green-500/10 text-green-400 border border-green-500/20'
-                : 'bg-red-500/10 text-red-400 border border-red-500/20'
-            }`}>
-              {message.type === 'success' ? <CheckCircle2 className="w-4 h-4" /> : <AlertTriangle className="w-4 h-4" />}
-              {message.text}
-              <button onClick={() => setMessage(null)} className="ml-auto hover:opacity-70"><X className="w-3 h-3" /></button>
-            </div>
-          )}
-        </CardContent>
-      </Card>
-
-      {/* Tabs */}
-      <div className="flex items-center gap-1 p-1 bg-[var(--dg-bg-tertiary)] rounded-lg w-fit">
-        {[
-          { key: 'logs' as const, label: '慢日志列表', icon: Clock },
-          { key: 'top' as const, label: 'TOP查询', icon: BarChart3 },
-          { key: 'trend' as const, label: '趋势分析', icon: BarChart3 },
-        ].map(tab => {
-          const Icon = tab.icon;
-          return (
-            <button
-              key={tab.key}
-              onClick={() => setActiveTab(tab.key)}
-              className={`flex items-center gap-2 px-4 py-1.5 rounded-md text-sm font-medium transition-colors ${
-                activeTab === tab.key ? 'bg-blue-600 text-white' : 'text-[var(--dg-text-secondary)] hover:bg-[var(--dg-bg-hover)]'
-              }`}
-            >
-              <Icon className="w-4 h-4" />
-              {tab.label}
-            </button>
-          );
-        })}
-      </div>
-
-      {/* Tab 1: Slow log list */}
-      {activeTab === 'logs' && (
-        <Card className="dg-card">
-          <CardHeader className="border-b border-[var(--dg-border)]">
-            <CardTitle className="text-[15px] font-semibold flex items-center gap-2">
-              <Clock className="w-4 h-4 text-blue-400" />
-              慢日志列表
-              <span className="text-xs font-normal text-[var(--dg-text-muted)] ml-2">共 {logsTotal} 条</span>
-              {compareIds.size > 0 && (
-                <button
-                  onClick={() => setCompareIds(new Set())}
-                  className="ml-2 text-xs text-[var(--dg-text-muted)] hover:text-red-400 transition-colors"
-                >
-                  清除对比选择
-                </button>
-              )}
-            </CardTitle>
-          </CardHeader>
-          <CardContent className="p-0">
-            {logsLoading ? (
-              <div className="p-10 text-center text-[var(--dg-text-muted)]">
-                <Loader2 className="w-6 h-6 animate-spin mx-auto mb-2" />
-                加载中...
-              </div>
-            ) : logs.length === 0 ? (
-              <div className="p-10 text-center text-[var(--dg-text-muted)]">
-                <Database className="w-10 h-10 mx-auto mb-3 opacity-30" />
-                <p className="text-sm">暂无慢日志数据</p>
-                <p className="text-xs mt-1">请先选择实例并点击"收集慢日志"</p>
-              </div>
-            ) : (
-              <div className="overflow-x-auto">
-                <table className="w-full text-sm">
-                  <thead>
-                    <tr className="border-b border-[var(--dg-border)]">
-                      <th className="text-left px-3 py-3 text-[var(--dg-text-muted)] font-medium w-8" />
-                      <th className="text-left px-3 py-3 text-[var(--dg-text-muted)] font-medium w-8">对比</th>
-                      <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">SQL</th>
-                      <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">执行时间</th>
-                      <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">锁等待</th>
-                      <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">扫描行数</th>
-                      <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">返回行数</th>
-                      <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">数据库</th>
-                      <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">时间</th>
-                    </tr>
-                  </thead>
-                  <tbody>
-                    {logs.map(log => {
-                      const isExpanded = expandedRowId === log.id;
-                      const isSqlExpanded = expandedSqlIds.has(log.id);
-                      const isComparing = compareIds.has(log.id);
-                      const suggestions = isExpanded ? generateSuggestions(log) : [];
-                      return (
-                        <>
-                          <tr key={log.id} className={`border-b border-[var(--dg-border-light)] transition-colors ${isComparing ? 'bg-blue-500/5' : 'hover:bg-[var(--dg-bg-hover)]'}`}>
-                            <td className="px-3 py-3">
-                              <button
-                                onClick={() => toggleRowExpand(log.id)}
-                                className="text-[var(--dg-text-muted)] hover:text-[var(--dg-text-primary)] transition-colors"
-                              >
-                                {isExpanded ? <ChevronDown className="w-4 h-4" /> : <ChevronRight className="w-4 h-4" />}
-                              </button>
-                            </td>
-                            <td className="px-3 py-3">
-                              <button
-                                onClick={() => toggleCompare(log.id)}
-                                className={`w-5 h-5 rounded border flex items-center justify-center transition-all ${
-                                  isComparing ? 'bg-blue-500 border-blue-500' : 'border-[var(--dg-text-muted)] hover:border-blue-400'
-                                }`}
-                              >
-                                {isComparing && <CheckCircle2 className="w-3.5 h-3.5 text-white" />}
-                              </button>
-                            </td>
-                            <td className="px-4 py-3 max-w-md">
-                              <code className={`text-xs font-mono ${queryTimeColor(log.query_time)}`}>
-                                {isSqlExpanded ? log.sql.replace(/\n/g, ' ').replace(/\s+/g, ' ').trim() : truncateSql(log.sql, 80)}
-                              </code>
-                              {log.sql.length > 80 && (
-                                <button
-                                  onClick={(e) => { e.stopPropagation(); toggleSqlExpand(log.id); }}
-                                  className="ml-2 text-xs text-blue-400 hover:text-blue-300 transition-colors"
-                                >
-                                  {isSqlExpanded ? '收起' : '展开'}
-                                </button>
-                              )}
-                            </td>
-                            <td className="px-4 py-3">
-                              <span className={`inline-flex items-center gap-1 px-2 py-0.5 rounded text-xs font-medium ${queryTimeBg(log.query_time)} ${queryTimeColor(log.query_time)}`}>
-                                <Clock className="w-3 h-3" />
-                                {formatQueryTime(log.query_time)}
-                              </span>
-                            </td>
-                            <td className="px-4 py-3 text-[var(--dg-text-secondary)]">
-                              {formatQueryTime(log.lock_time)}
-                            </td>
-                            <td className="px-4 py-3 text-[var(--dg-text-secondary)]">
-                              {log.rows_examined.toLocaleString()}
-                            </td>
-                            <td className="px-4 py-3 text-[var(--dg-text-secondary)]">
-                              {log.rows_sent.toLocaleString()}
-                            </td>
-                            <td className="px-4 py-3">
-                              <span className="px-2 py-0.5 bg-[var(--dg-bg-tertiary)] text-[var(--dg-text-secondary)] text-xs rounded-md">
-                                {log.database}
-                              </span>
-                            </td>
-                            <td className="px-4 py-3 text-[var(--dg-text-muted)] text-xs whitespace-nowrap">
-                              {new Date(log.start_time).toLocaleString('zh-CN', {
-                                month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit', second: '2-digit',
-                              })}
-                            </td>
-                          </tr>
-
-                          {/* Expanded section with EXPLAIN + Suggestions + Kill */}
-                          {isExpanded && (
-                            <tr className="border-t border-[var(--dg-border)] bg-[var(--dg-bg-tertiary)]/50">
-                              <td colSpan={9} className="p-5">
-                                {/* Full SQL */}
-                                <div className="mb-4 p-3 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded-lg">
-                                  <div className="flex items-center justify-between mb-2">
-                                    <span className="text-xs font-medium text-[var(--dg-text-muted)]">完整 SQL</span>
-                                    <button
-                                      onClick={() => navigator.clipboard.writeText(log.sql)}
-                                      className="text-xs text-blue-400 hover:text-blue-300 transition-colors"
-                                    >
-                                      复制
-                                    </button>
-                                  </div>
-                                  <code className="text-xs font-mono text-[var(--dg-text-secondary)] break-all whitespace-pre-wrap">
-                                    {log.sql}
-                                  </code>
-                                </div>
-
-                                {/* EXPLAIN Plan */}
-                                <div className="mb-4">
-                                  <div className="flex items-center gap-2 mb-3">
-                                    <Search className="w-4 h-4 text-blue-400" />
-                                    <span className="text-sm font-semibold">执行计划</span>
-                                    <span className="text-xs text-[var(--dg-text-muted)]">（模拟）</span>
-                                  </div>
-                                  <div className="flex items-center gap-0 flex-wrap">
-                                    {['Table Scan', 'Filter', 'Sort', 'Limit'].map((step, idx) => (
-                                      <div key={step} className="flex items-center">
-                                        <div className={`px-4 py-2 rounded-lg border text-sm font-medium ${
-                                          idx === 0 ? 'bg-red-500/10 border-red-500/30 text-red-400' :
-                                          idx === 1 ? 'bg-yellow-500/10 border-yellow-500/30 text-yellow-400' :
-                                          idx === 2 ? 'bg-blue-500/10 border-blue-500/30 text-blue-400' :
-                                          'bg-green-500/10 border-green-500/30 text-green-400'
-                                        }`}>
-                                          {step}
-                                        </div>
-                                        {idx < 3 && <span className="mx-2 text-[var(--dg-text-muted)] text-lg">-&gt;</span>}
-                                      </div>
-                                    ))}
-                                  </div>
-                                </div>
-
-                                {/* Optimization Suggestions */}
-                                <div className="mb-4">
-                                  <div className="flex items-center gap-2 mb-3">
-                                    <Lightbulb className="w-4 h-4 text-yellow-400" />
-                                    <span className="text-sm font-semibold">优化建议</span>
-                                  </div>
-                                  <div className="space-y-2">
-                                    {suggestions.map(s => {
-                                      const config = SUGGESTION_COLORS[s.level];
-                                      const SIcon = config.icon;
-                                      return (
-                                        <div key={s.id} className={`p-3 rounded-lg border ${config.border} ${config.bg}`}>
-                                          <div className="flex items-center gap-2 mb-1">
-                                            <SIcon className="w-3.5 h-3.5" />
-                                            <span className="text-sm font-medium">{s.title}</span>
-                                            <span className={`text-[10px] px-1.5 py-0.5 rounded ${
-                                              s.level === 'critical' ? 'bg-red-500/20 text-red-400' :
-                                              s.level === 'warning' ? 'bg-yellow-500/20 text-yellow-400' :
-                                              'bg-blue-500/20 text-blue-400'
-                                            }`}>
-                                              {s.level === 'critical' ? '严重' : s.level === 'warning' ? '警告' : '建议'}
-                                            </span>
-                                          </div>
-                                          <p className="text-xs text-[var(--dg-text-secondary)] mb-1">{s.description}</p>
-                                          <p className="text-xs text-[var(--dg-text-primary)]">{s.suggestion}</p>
-                                        </div>
-                                      );
-                                    })}
-                                  </div>
-                                </div>
-
-                                {/* Metrics + Kill */}
-                                <div className="flex items-end justify-between">
-                                  <div className="grid grid-cols-4 gap-3 flex-1">
-                                    {[
-                                      { label: '执行时间', value: formatQueryTime(log.query_time), color: queryTimeColor(log.query_time) },
-                                      { label: '锁等待', value: formatQueryTime(log.lock_time), color: 'text-[var(--dg-text-secondary)]' },
-                                      { label: '扫描行数', value: log.rows_examined.toLocaleString(), color: 'text-[var(--dg-text-secondary)]' },
-                                      { label: '返回行数', value: log.rows_sent.toLocaleString(), color: 'text-[var(--dg-text-secondary)]' },
-                                    ].map(m => (
-                                      <div key={m.label} className="p-3 bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded-lg">
-                                        <div className="text-xs text-[var(--dg-text-muted)] mb-1">{m.label}</div>
-                                        <div className={`text-base font-semibold ${m.color}`}>{m.value}</div>
-                                      </div>
-                                    ))}
-                                  </div>
-                                  <button
-                                    onClick={() => handleKillQuery(log.id)}
-                                    disabled={killingId === log.id}
-                                    className="ml-4 flex items-center gap-2 px-4 py-2 bg-red-500/15 border border-red-500/30 rounded-lg text-sm text-red-400 hover:bg-red-500/25 transition-all disabled:opacity-50"
-                                  >
-                                    {killingId === log.id ? <Loader2 className="w-4 h-4 animate-spin" /> : <Skull className="w-4 h-4" />}
-                                    终止查询
-                                  </button>
-                                </div>
-                              </td>
-                            </tr>
-                          )}
-                        </>
-                      );
-                    })}
-                  </tbody>
-                </table>
-              </div>
-            )}
-          </CardContent>
-        </Card>
-      )}
-
-      {/* Tab 2: Top queries */}
-      {activeTab === 'top' && (
-        <div className="space-y-4">
-          <Card className="dg-card">
-            <CardHeader className="border-b border-[var(--dg-border)]">
-              <CardTitle className="text-[15px] font-semibold flex items-center gap-2">
-                <BarChart3 className="w-4 h-4 text-purple-400" />
-                TOP 10 查询 — 平均执行时间
-              </CardTitle>
-            </CardHeader>
-            <CardContent className="p-5">
-              {topLoading ? (
-                <div className="p-10 text-center text-[var(--dg-text-muted)]">
-                  <Loader2 className="w-6 h-6 animate-spin mx-auto mb-2" />
-                  加载中...
-                </div>
-              ) : chartData.length === 0 ? (
-                <div className="p-10 text-center text-[var(--dg-text-muted)]">
-                  <BarChart3 className="w-10 h-10 mx-auto mb-3 opacity-30" />
-                  <p className="text-sm">暂无 TOP 查询数据</p>
-                </div>
-              ) : (
-                <ResponsiveContainer width="100%" height={320}>
-                  <BarChart data={chartData} margin={{ top: 5, right: 30, left: 20, bottom: 5 }}>
-                    <CartesianGrid strokeDasharray="3 3" stroke="var(--dg-border)" />
-                    <XAxis dataKey="name" tick={{ fill: 'var(--dg-text-muted)', fontSize: 12 }} />
-                    <YAxis tick={{ fill: 'var(--dg-text-muted)', fontSize: 12 }} label={{ value: 'ms', position: 'insideTopRight', fill: 'var(--dg-text-muted)', fontSize: 11 }} />
-                    <Tooltip
-                      contentStyle={{ backgroundColor: 'var(--dg-bg-secondary)', border: '1px solid var(--dg-border)', borderRadius: '8px', fontSize: '12px' }}
-                      formatter={(value: number, name: string) => [
-                        `${value.toFixed(1)} ms`,
-                        name === 'avgTime' ? '平均时间' : '最大时间',
-                      ]}
-                    />
-                    <Bar dataKey="avgTime" fill="#6366f1" radius={[4, 4, 0, 0]} name="avgTime" />
-                    <Bar dataKey="maxTime" fill="#a855f7" radius={[4, 4, 0, 0]} name="maxTime" />
-                  </BarChart>
-                </ResponsiveContainer>
-              )}
-            </CardContent>
-          </Card>
-
-          <Card className="dg-card">
-            <CardHeader className="border-b border-[var(--dg-border)]">
-              <CardTitle className="text-[15px] font-semibold flex items-center gap-2">
-                <AlertTriangle className="w-4 h-4 text-yellow-400" />
-                查询详情
-              </CardTitle>
-            </CardHeader>
-            <CardContent className="p-0">
-              {topLoading ? (
-                <div className="p-10 text-center text-[var(--dg-text-muted)]">加载中...</div>
-              ) : topQueries.length === 0 ? (
-                <div className="p-10 text-center text-[var(--dg-text-muted)]">暂无数据</div>
-              ) : (
-                <div className="overflow-x-auto">
-                  <table className="w-full text-sm">
-                    <thead>
-                      <tr className="border-b border-[var(--dg-border)]">
-                        <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium w-10">#</th>
-                        <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">SQL</th>
-                        <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">执行次数</th>
-                        <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">平均时间</th>
-                        <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">最大时间</th>
-                        <th className="text-left px-4 py-3 text-[var(--dg-text-muted)] font-medium">总时间</th>
-                      </tr>
-                    </thead>
-                    <tbody>
-                      {topQueries.map((q, idx) => (
-                        <tr key={idx} className="border-b border-[var(--dg-border-light)] hover:bg-[var(--dg-bg-hover)] transition-colors">
-                          <td className="px-4 py-3 text-[var(--dg-text-muted)] font-mono text-xs">{idx + 1}</td>
-                          <td className="px-4 py-3 max-w-md">
-                            <code className="text-xs font-mono text-[var(--dg-text-secondary)]">
-                              {truncateSql(q.sql, 100)}
-                            </code>
-                          </td>
-                          <td className="px-4 py-3">
-                            <span className="px-2 py-0.5 bg-blue-500/10 text-blue-400 text-xs rounded-md font-medium">
-                              {q.count}
-                            </span>
-                          </td>
-                          <td className="px-4 py-3">
-                            <span className={`text-xs font-medium ${queryTimeColor(q.avg_time_ms / 1000)}`}>
-                              {q.avg_time_ms.toFixed(1)} ms
-                            </span>
-                          </td>
-                          <td className="px-4 py-3">
-                            <span className={`text-xs font-medium ${queryTimeColor(q.max_time_ms / 1000)}`}>
-                              {q.max_time_ms.toFixed(1)} ms
-                            </span>
-                          </td>
-                          <td className="px-4 py-3 text-[var(--dg-text-secondary)] text-xs">
-                            {q.total_time_ms >= 1000
-                              ? `${(q.total_time_ms / 1000).toFixed(2)}s`
-                              : `${q.total_time_ms.toFixed(0)}ms`}
-                          </td>
-                        </tr>
-                      ))}
-                    </tbody>
-                  </table>
-                </div>
-              )}
-            </CardContent>
-          </Card>
-        </div>
-      )}
-
-      {/* Tab 3: Trend */}
-      {activeTab === 'trend' && (
-        <div className="space-y-4">
-          {/* Time Distribution */}
-          <Card className="dg-card">
-            <CardHeader className="border-b border-[var(--dg-border)]">
-              <CardTitle className="text-[15px] font-semibold flex items-center gap-2">
-                <Clock className="w-4 h-4 text-orange-400" />
-                耗时分布
-              </CardTitle>
-            </CardHeader>
-            <CardContent className="p-5">
-              {timeDistribution.length === 0 ? (
-                <div className="p-10 text-center text-[var(--dg-text-muted)]">
-                  <BarChart3 className="w-10 h-10 mx-auto mb-3 opacity-30" />
-                  <p className="text-sm">暂无数据</p>
-                </div>
-              ) : (
-                <div className="flex items-center gap-8">
-                  <ResponsiveContainer width="50%" height={240}>
-                    <PieChart>
-                      <Pie data={timeDistribution} dataKey="value" nameKey="name" cx="50%" cy="50%" outerRadius={80} label>
-                        {timeDistribution.map((entry, i) => <Cell key={i} fill={entry.color} />)}
-                      </Pie>
-                      <Tooltip contentStyle={{ backgroundColor: 'var(--dg-bg-secondary)', border: '1px solid var(--dg-border)', borderRadius: '8px', fontSize: '12px' }} />
-                      <Legend />
-                    </PieChart>
-                  </ResponsiveContainer>
-                  <div className="flex-1 space-y-2">
-                    {timeDistribution.map(d => (
-                      <div key={d.name} className="flex items-center gap-2">
-                        <div className="w-3 h-3 rounded-sm" style={{ backgroundColor: d.color }} />
-                        <span className="text-sm flex-1">{d.name}</span>
-                        <span className="text-sm font-semibold">{d.value}</span>
-                      </div>
-                    ))}
-                  </div>
-                </div>
-              )}
-            </CardContent>
-          </Card>
-
-          {/* Trend Chart */}
-          <Card className="dg-card">
-            <CardHeader className="border-b border-[var(--dg-border)]">
-              <CardTitle className="text-[15px] font-semibold flex items-center gap-2">
-                <BarChart3 className="w-4 h-4 text-blue-400" />
-                慢查询趋势（最近14天）
-              </CardTitle>
-            </CardHeader>
-            <CardContent className="p-5">
-              {trendData.length === 0 ? (
-                <div className="p-10 text-center text-[var(--dg-text-muted)]">
-                  <BarChart3 className="w-10 h-10 mx-auto mb-3 opacity-30" />
-                  <p className="text-sm">暂无数据</p>
-                </div>
-              ) : (
-                <ResponsiveContainer width="100%" height={280}>
-                  <LineChart data={trendData}>
-                    <CartesianGrid strokeDasharray="3 3" stroke="var(--dg-border)" />
-                    <XAxis dataKey="date" tick={{ fill: 'var(--dg-text-muted)', fontSize: 11 }} />
-                    <YAxis yAxisId="left" tick={{ fill: 'var(--dg-text-muted)', fontSize: 11 }} />
-                    <YAxis yAxisId="right" orientation="right" tick={{ fill: 'var(--dg-text-muted)', fontSize: 11 }} />
-                    <Tooltip contentStyle={{ backgroundColor: 'var(--dg-bg-secondary)', border: '1px solid var(--dg-border)', borderRadius: '8px', fontSize: '12px' }} />
-                    <Legend />
-                    <Line yAxisId="left" type="monotone" dataKey="count" name="慢查询数" stroke="#6366f1" strokeWidth={2} dot={{ r: 3 }} />
-                    <Line yAxisId="right" type="monotone" dataKey="avgTime" name="平均耗时(ms)" stroke="#a855f7" strokeWidth={2} dot={{ r: 3 }} />
-                  </LineChart>
-                </ResponsiveContainer>
-              )}
-            </CardContent>
-          </Card>
-        </div>
-      )}
-
-      {/* Compare Modal */}
-      {showCompare && compareLogs.length === 2 && (
-        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/50">
-          <div className="w-full max-w-4xl bg-[var(--dg-bg-secondary)] border border-[var(--dg-border)] rounded-xl p-6 shadow-xl max-h-[80vh] overflow-y-auto" onClick={e => e.stopPropagation()}>
-            <div className="flex items-center justify-between mb-5">
-              <h2 className="text-lg font-semibold flex items-center gap-2"><GitCompare className="w-5 h-5 text-blue-400" /> 查询对比</h2>
-              <button onClick={() => setShowCompare(false)} className="text-[var(--dg-text-muted)] hover:text-[var(--dg-text-primary)]"><XCircle className="w-5 h-5" /></button>
-            </div>
-            <div className="grid grid-cols-2 gap-4">
-              {compareLogs.map((log, i) => (
-                <div key={log.id} className="p-4 bg-[var(--dg-bg-tertiary)] rounded-lg">
-                  <div className="text-sm font-medium mb-3 text-blue-400">查询 {i + 1}</div>
-                  <div className="space-y-2">
-                    <div>
-                      <div className="text-xs text-[var(--dg-text-muted)] mb-1">SQL</div>
-                      <code className="text-xs font-mono text-[var(--dg-text-secondary)] break-all">{truncateSql(log.sql, 200)}</code>
-                    </div>
-                    <div className="grid grid-cols-2 gap-2">
-                      <div className="p-2 bg-[var(--dg-bg-secondary)] rounded">
-                        <div className="text-xs text-[var(--dg-text-muted)]">执行时间</div>
-                        <div className={`text-sm font-semibold ${queryTimeColor(log.query_time)}`}>{formatQueryTime(log.query_time)}</div>
-                      </div>
-                      <div className="p-2 bg-[var(--dg-bg-secondary)] rounded">
-                        <div className="text-xs text-[var(--dg-text-muted)]">锁等待</div>
-                        <div className="text-sm font-semibold">{formatQueryTime(log.lock_time)}</div>
-                      </div>
-                      <div className="p-2 bg-[var(--dg-bg-secondary)] rounded">
-                        <div className="text-xs text-[var(--dg-text-muted)]">扫描行数</div>
-                        <div className="text-sm font-semibold">{log.rows_examined.toLocaleString()}</div>
-                      </div>
-                      <div className="p-2 bg-[var(--dg-bg-secondary)] rounded">
-                        <div className="text-xs text-[var(--dg-text-muted)]">返回行数</div>
-                        <div className="text-sm font-semibold">{log.rows_sent.toLocaleString()}</div>
-                      </div>
-                    </div>
-                  </div>
-                </div>
-              ))}
-            </div>
-            {/* Comparison Summary */}
-            <div className="mt-4 p-4 bg-[var(--dg-bg-tertiary)] rounded-lg">
-              <div className="text-sm font-medium mb-2">对比总结</div>
-              <div className="grid grid-cols-4 gap-3 text-center">
-                {[
-                  { label: '执行时间差', getValue: () => {
-                    const diff = compareLogs[0].query_time - compareLogs[1].query_time;
-                    return `${diff > 0 ? '+' : ''}${formatQueryTime(Math.abs(diff))}`;
-                  }, color: compareLogs[0].query_time > compareLogs[1].query_time ? 'text-red-400' : 'text-green-400' },
-                  { label: '扫描行数差', getValue: () => {
-                    const diff = compareLogs[0].rows_examined - compareLogs[1].rows_examined;
-                    return `${diff > 0 ? '+' : ''}${Math.abs(diff).toLocaleString()}`;
-                  }, color: compareLogs[0].rows_examined > compareLogs[1].rows_examined ? 'text-red-400' : 'text-green-400' },
-                  { label: '锁等待差', getValue: () => {
-                    const diff = compareLogs[0].lock_time - compareLogs[1].lock_time;
-                    return `${diff > 0 ? '+' : ''}${formatQueryTime(Math.abs(diff))}`;
-                  }, color: 'text-[var(--dg-text-secondary)]' },
-                  { label: '返回行数差', getValue: () => {
-                    const diff = compareLogs[0].rows_sent - compareLogs[1].rows_sent;
-                    return `${diff > 0 ? '+' : ''}${Math.abs(diff).toLocaleString()}`;
-                  }, color: 'text-[var(--dg-text-secondary)]' },
-                ].map(item => (
-                  <div key={item.label}>
-                    <div className="text-xs text-[var(--dg-text-muted)]">{item.label}</div>
-                    <div className={`text-sm font-semibold ${item.color}`}>{item.getValue()}</div>
-                  </div>
-                ))}
-              </div>
-            </div>
-          </div>
-        </div>
-      )}
-    </div>
-  );
-}

frontend/src/pages/TicketCreatePage.tsx

@@ -3,6 +3,7 @@ import { useNavigate } from 'react-router-dom';
 import {
   ChevronRight, Check, AlertTriangle, Shield, Database,
   FileText, Sparkles, RotateCcw, Loader2, Info,
+  ChevronDown, ChevronUp, Table2, Columns3, FolderOpen,
 } from 'lucide-react';
 import { ticketApi } from '@/api/ticket';
 import { instanceApi } from '@/api/instance';
@@ -39,6 +40,12 @@ interface StepConfig {
   icon: React.ElementType;
 }
 
+interface TableMeta {
+  name: string;
+  rows?: number;
+  type?: string;
+}
+
 /* ------------------------------------------------------------------ */
 /*  Constants                                                           */
 /* ------------------------------------------------------------------ */
@@ -79,6 +86,24 @@ const PRIORITY_OPTIONS = [
   { value: 'high', label: '高' },
 ];
 
+// 按使用频率排序
+const DB_TYPE_OPTIONS = [
+  { value: '', label: '请选择数据库类型' },
+  { value: 'mysql', label: 'MySQL' },
+  { value: 'redis', label: 'Redis' },
+  { value: 'postgres', label: 'PostgreSQL' },
+  { value: 'mongodb', label: 'MongoDB' },
+];
+
+const DB_TYPE_LABELS: Record<string, string> = {
+  mysql: 'MySQL',
+  redis: 'Redis',
+  postgres: 'PostgreSQL',
+  postgresql: 'PostgreSQL',
+  mongodb: 'MongoDB',
+  sqlite: 'SQLite',
+};
+
 /* ------------------------------------------------------------------ */
 /*  Helper: generate rollback SQL suggestion                            */
 /* ------------------------------------------------------------------ */
@@ -86,7 +111,6 @@ const PRIORITY_OPTIONS = [
 function generateRollbackSuggestion(sql: string): string {
   const upper = sql.toUpperCase().trim();
 
-  // UPDATE -> generate reverse UPDATE
   if (upper.startsWith('UPDATE')) {
     const tableMatch = sql.match(/UPDATE\s+(\w+)/i);
     const table = tableMatch ? tableMatch[1] : 'table';
@@ -95,19 +119,16 @@ function generateRollbackSuggestion(sql: string): string {
     return `-- 建议回滚语句（请根据实际业务调整）：\n-- UPDATE ${table} SET ... WHERE ${where || '...'};`;
   }
 
-  // DELETE -> generate INSERT from backup
   if (upper.startsWith('DELETE')) {
     const tableMatch = sql.match(/FROM\s+(\w+)/i) || sql.match(/DELETE\s+(\w+)/i);
     const table = tableMatch ? tableMatch[1] : 'table';
     return `-- 建议回滚语句：\n-- INSERT INTO ${table} SELECT * FROM ${table}_backup WHERE ...;\n-- 或从 Binlog 恢复`;
   }
 
-  // ALTER -> generate reverse ALTER
   if (upper.startsWith('ALTER')) {
     return `-- DDL 回滚说明：\n-- 1. ALTER TABLE 操作无法直接回滚\n-- 2. 建议先使用 pt-online-schema-change 或 gh-ost 进行在线变更\n-- 3. 执行前请确保有完整备份`;
   }
 
-  // INSERT -> generate DELETE
   if (upper.startsWith('INSERT')) {
     const tableMatch = sql.match(/INTO\s+(\w+)/i);
     const table = tableMatch ? tableMatch[1] : 'table';
@@ -130,6 +151,7 @@ export default function TicketCreatePage() {
   // -- Form fields --
   const [title, setTitle] = useState('');
   const [priority, setPriority] = useState('medium');
+  const [dbType, setDbType] = useState('');
   const [instanceId, setInstanceId] = useState('');
   const [database, setDatabase] = useState('');
   const [sqlContent, setSqlContent] = useState('');
@@ -148,6 +170,14 @@ export default function TicketCreatePage() {
   // -- Audit --
   const [auditResult, setAuditResult] = useState<AuditResult | null>(null);
 
+  // -- Schema browser --
+  const [showSchema, setShowSchema] = useState(false);
+  const [tables, setTables] = useState<TableMeta[]>([]);
+  const [loadingTables, setLoadingTables] = useState(false);
+  const [expandedTable, setExpandedTable] = useState<string | null>(null);
+  const [columns, setColumns] = useState<Record<string, string[]>>({});
+  const [loadingColumns, setLoadingColumns] = useState<string | null>(null);
+
   /* ---------------------------------------------------------------- */
   /*  Fetch instances on mount                                         */
   /* ---------------------------------------------------------------- */
@@ -163,6 +193,39 @@ export default function TicketCreatePage() {
       .finally(() => setLoadingInstances(false));
   }, []);
 
+  /* ---------------------------------------------------------------- */
+  /*  Filtered instances by db type                                    */
+  /* ---------------------------------------------------------------- */
+
+  const filteredInstances = useMemo(() => {
+    if (!dbType) return instances;
+    return instances.filter(i => {
+      if (dbType === 'postgres') return i.db_type === 'postgres' || i.db_type === 'postgresql';
+      return i.db_type === dbType;
+    });
+  }, [instances, dbType]);
+
+  /* ---------------------------------------------------------------- */
+  /*  Reset instance when dbType changes                               */
+  /* ---------------------------------------------------------------- */
+
+  useEffect(() => {
+    // If current instance doesn't match new dbType, reset it
+    if (instanceId) {
+      const current = instances.find(i => i.id === Number(instanceId));
+      if (current && dbType) {
+        const match = dbType === 'postgres'
+          ? (current.db_type === 'postgres' || current.db_type === 'postgresql')
+          : current.db_type === dbType;
+        if (!match) {
+          setInstanceId('');
+          setDatabase('');
+          setDatabases([]);
+        }
+      }
+    }
+  }, [dbType, instances, instanceId]);
+
   /* ---------------------------------------------------------------- */
   /*  Fetch databases when instance changes                            */
   /* ---------------------------------------------------------------- */
@@ -173,6 +236,7 @@ export default function TicketCreatePage() {
       setDatabase('');
       return;
     }
+    const inst = instances.find(i => i.id === Number(instanceId));
     setLoadingDatabases(true);
     instanceApi.listDatabases(Number(instanceId))
       .then((res: unknown) => {
@@ -182,14 +246,80 @@ export default function TicketCreatePage() {
         setDatabases(Array.isArray(data) ? data as string[] : []);
         if (Array.isArray(data) && data.length > 0) {
           setDatabase(String(data[0]));
+        } else if (inst?.db_type === 'redis') {
+          // Redis 默认 db0
+          setDatabase('db0');
         }
       })
       .catch(() => {
-        // Fallback: no auto database list
         setDatabases([]);
+        // Redis fallback
+        if (inst?.db_type === 'redis') {
+          setDatabase('db0');
+        }
       })
       .finally(() => setLoadingDatabases(false));
-  }, [instanceId]);
+  }, [instanceId, instances]);
+
+  /* ---------------------------------------------------------------- */
+  /*  Schema browser: load tables                                      */
+  /* ---------------------------------------------------------------- */
+
+  useEffect(() => {
+    if (!showSchema || !instanceId || !database) {
+      setTables([]);
+      return;
+    }
+    setLoadingTables(true);
+    instanceApi.listTables(Number(instanceId), database)
+      .then((res: unknown) => {
+        const data = (res as { tables?: TableMeta[] })?.tables
+          || (res as TableMeta[])
+          || [];
+        setTables(Array.isArray(data) ? data as TableMeta[] : []);
+      })
+      .catch(() => setTables([]))
+      .finally(() => setLoadingTables(false));
+  }, [showSchema, instanceId, database]);
+
+  /* ---------------------------------------------------------------- */
+  /*  Schema browser: load columns for a table                         */
+  /* ---------------------------------------------------------------- */
+
+  const handleExpandTable = useCallback(async (tableName: string) => {
+    if (expandedTable === tableName) {
+      setExpandedTable(null);
+      return;
+    }
+    setExpandedTable(tableName);
+
+    if (columns[tableName]) return; // already loaded
+
+    setLoadingColumns(tableName);
+    try {
+      const res = await instanceApi.listTables(Number(instanceId), `${database}/${tableName}`) as unknown;
+      const data = (res as { tables?: { columns?: { name: string }[] }[] })?.tables;
+      if (Array.isArray(data) && data[0]?.columns) {
+        const cols = data[0].columns.map((c: { name: string }) => c.name);
+        setColumns(prev => ({ ...prev, [tableName]: cols }));
+      }
+    } catch {
+      // ignore — columns not available
+    } finally {
+      setLoadingColumns(null);
+    }
+  }, [expandedTable, columns, instanceId, database]);
+
+  /* ---------------------------------------------------------------- */
+  /*  Insert table/column name into SQL editor                         */
+  /* ---------------------------------------------------------------- */
+
+  const insertToEditor = useCallback((text: string) => {
+    setSqlContent(prev => {
+      const separator = prev.trim() ? (prev.trimEnd().endsWith('\n') ? '' : ' ') : '';
+      return prev + separator + text + ' ';
+    });
+  }, []);
 
   /* ---------------------------------------------------------------- */
   /*  SQL change callback                                               */
@@ -197,7 +327,6 @@ export default function TicketCreatePage() {
 
   const handleSqlChange = useCallback((val: string) => {
     setSqlContent(val);
-    // Auto-generate rollback suggestion when SQL changes
     if (val.trim().length > 10) {
       setRollbackSql(generateRollbackSuggestion(val));
     }
@@ -255,7 +384,7 @@ export default function TicketCreatePage() {
       const inst = instances.find((i) => i.id === Number(instanceId));
       await ticketApi.create({
         title: title.trim(),
-        db_type: inst?.db_type || 'mysql',
+        db_type: inst?.db_type || dbType || 'mysql',
         instance_id: Number(instanceId),
         target_database: database,
         sql_content: sqlContent,
@@ -270,7 +399,7 @@ export default function TicketCreatePage() {
     } finally {
       setSubmitting(false);
     }
-  }, [title, sqlContent, instanceId, database, reason, priority, rollbackSql, instances, navigate]);
+  }, [title, sqlContent, instanceId, database, reason, priority, rollbackSql, instances, dbType, navigate]);
 
   /* ---------------------------------------------------------------- */
   /*  Derived values                                                    */
@@ -336,6 +465,106 @@ export default function TicketCreatePage() {
       </div>
     ) : null;
 
+  /* ---------------------------------------------------------------- */
+  /*  Schema Browser Panel                                             */
+  /* ---------------------------------------------------------------- */
+
+  const renderSchemaBrowser = () => {
+    if (!instanceId || !database) return null;
+
+    return (
+      <div className="bg-[var(--dg-bg-secondary)] rounded-lg">
+        {/* Toggle button */}
+        <button
+          onClick={() => setShowSchema(!showSchema)}
+          className="flex items-center gap-2 w-full px-4 py-2.5 text-sm font-medium text-[var(--dg-text-secondary)] hover:text-[var(--dg-text-primary)] transition-colors"
+        >
+          <FolderOpen className="w-4 h-4" />
+          浏览库表结构
+          <span className="text-xs text-[var(--dg-text-muted)]">— 点击表名/字段插入到 SQL</span>
+          {showSchema
+            ? <ChevronUp className="w-4 h-4 ml-auto" />
+            : <ChevronDown className="w-4 h-4 ml-auto" />
+          }
+        </button>
+
+        {/* Schema content */}
+        {showSchema && (
+          <div className="px-4 pb-3 max-h-[300px] overflow-y-auto">
+            {loadingTables ? (
+              <div className="flex items-center gap-2 py-3 text-xs text-[var(--dg-text-muted)]">
+                <Loader2 className="w-3 h-3 animate-spin" />
+                加载表列表...
+              </div>
+            ) : tables.length === 0 ? (
+              <p className="text-xs text-[var(--dg-text-muted)] py-2">无可用表（或实例未连接）</p>
+            ) : (
+              <div className="space-y-0.5">
+                {tables.map(t => (
+                  <div key={t.name}>
+                    {/* Table row */}
+                    <button
+                      onClick={() => handleExpandTable(t.name)}
+                      className="flex items-center gap-2 w-full px-2 py-1.5 text-sm rounded hover:bg-[var(--dg-bg-hover)] transition-colors group"
+                    >
+                      {expandedTable === t.name
+                        ? <ChevronDown className="w-3 h-3 text-[var(--dg-text-muted)]" />
+                        : <ChevronRight className="w-3 h-3 text-[var(--dg-text-muted)]" />
+                      }
+                      <Table2 className="w-3.5 h-3.5 text-blue-400" />
+                      <span
+                        className="font-mono text-[var(--dg-text-primary)] hover:text-blue-400 transition-colors"
+                        onClick={(e) => { e.stopPropagation(); insertToEditor(t.name); }}
+                        title="点击插入表名"
+                      >
+                        {t.name}
+                      </span>
+                      {t.rows !== undefined && (
+                        <span className="text-xs text-[var(--dg-text-muted)] ml-auto">
+                          {t.rows.toLocaleString()} 行
+                        </span>
+                      )}
+                    </button>
+
+                    {/* Columns */}
+                    {expandedTable === t.name && (
+                      <div className="ml-5 pl-3">
+                        {loadingColumns === t.name ? (
+                          <div className="flex items-center gap-2 py-1 text-xs text-[var(--dg-text-muted)]">
+                            <Loader2 className="w-3 h-3 animate-spin" />
+                            加载字段...
+                          </div>
+                        ) : columns[t.name] ? (
+                          <div className="space-y-0.5">
+                            {columns[t.name].map(col => (
+                              <button
+                                key={col}
+                                onClick={() => insertToEditor(col)}
+                                className="flex items-center gap-2 w-full px-2 py-1 text-xs rounded hover:bg-[var(--dg-bg-hover)] transition-colors"
+                                title="点击插入字段名"
+                              >
+                                <Columns3 className="w-3 h-3 text-[var(--dg-text-muted)]" />
+                                <span className="font-mono text-[var(--dg-text-secondary)] hover:text-blue-400 transition-colors">
+                                  {col}
+                                </span>
+                              </button>
+                            ))}
+                          </div>
+                        ) : (
+                          <p className="text-xs text-[var(--dg-text-muted)] py-1">字段信息不可用</p>
+                        )}
+                      </div>
+                    )}
+                  </div>
+                ))}
+              </div>
+            )}
+          </div>
+        )}
+      </div>
+    );
+  };
+
   /* ========== Step 1: Fill info ========== */
   const renderStep1 = () => (
     <div className="space-y-5 bg-[var(--dg-bg-secondary)] rounded-lg p-5">
@@ -352,7 +581,7 @@ export default function TicketCreatePage() {
         />
       </div>
 
-      {/* Priority + Instance */}
+      {/* Priority + DB Type */}
       <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
         <div>
           <label className="block text-sm font-medium mb-2">优先级</label>
@@ -369,32 +598,65 @@ export default function TicketCreatePage() {
 
         <div>
           <label className="block text-sm font-medium mb-2">
-            选择实例 <span className="text-red-400">*</span>
+            数据库类型 <span className="text-red-400">*</span>
           </label>
           <select
-            value={instanceId}
-            onChange={(e) => setInstanceId(e.target.value)}
-            disabled={loadingInstances}
-            className="w-full px-3 py-2 bg-[var(--dg-bg-primary)] border border-[var(--dg-border)] rounded-lg text-sm focus:outline-none focus:border-blue-500 transition-colors disabled:opacity-50"
+            value={dbType}
+            onChange={(e) => setDbType(e.target.value)}
+            className="w-full px-3 py-2 bg-[var(--dg-bg-primary)] border border-[var(--dg-border)] rounded-lg text-sm focus:outline-none focus:border-blue-500 transition-colors"
           >
-            <option value="">
-              {loadingInstances ? '加载中...' : '请选择实例'}
-            </option>
-            {instances.map((inst) => (
-              <option key={inst.id} value={String(inst.id)}>
-                {inst.name} ({inst.host}:{inst.port}) [{inst.db_type.toUpperCase()}]
-              </option>
+            {DB_TYPE_OPTIONS.map((opt) => (
+              <option key={opt.value} value={opt.value}>{opt.label}</option>
             ))}
           </select>
         </div>
       </div>
 
+      {/* Instance (filtered by dbType) */}
+      <div>
+        <label className="block text-sm font-medium mb-2">
+          选择实例 <span className="text-red-400">*</span>
+        </label>
+        <select
+          value={instanceId}
+          onChange={(e) => setInstanceId(e.target.value)}
+          disabled={loadingInstances || filteredInstances.length === 0}
+          className="w-full px-3 py-2 bg-[var(--dg-bg-primary)] border border-[var(--dg-border)] rounded-lg text-sm focus:outline-none focus:border-blue-500 transition-colors disabled:opacity-50"
+        >
+          <option value="">
+            {loadingInstances
+              ? '加载中...'
+              : dbType && filteredInstances.length === 0
+                ? `无 ${(DB_TYPE_LABELS[dbType]) || dbType} 实例`
+                : dbType
+                  ? `请选择 ${(DB_TYPE_LABELS[dbType]) || dbType} 实例`
+                  : '请先选择数据库类型'
+            }
+          </option>
+          {filteredInstances.map((inst) => (
+            <option key={inst.id} value={String(inst.id)}>
+              {inst.name} ({inst.host}:{inst.port})
+            </option>
+          ))}
+        </select>
+      </div>
+
       {/* Database */}
       <div>
         <label className="block text-sm font-medium mb-2">
           数据库 <span className="text-red-400">*</span>
         </label>
-        {databases.length > 0 ? (
+        {selectedInstance?.db_type === 'redis' ? (
+          <div className="flex items-center gap-2">
+            <input
+              value={database}
+              onChange={(e) => setDatabase(e.target.value)}
+              className="w-full px-3 py-2 bg-[var(--dg-bg-primary)] border border-[var(--dg-border)] rounded-lg text-sm focus:outline-none focus:border-blue-500 transition-colors"
+              placeholder="db0"
+            />
+            <span className="text-xs text-[var(--dg-text-muted)] whitespace-nowrap">Redis</span>
+          </div>
+        ) : databases.length > 0 ? (
           <select
             value={database}
             onChange={(e) => setDatabase(e.target.value)}
@@ -410,22 +672,19 @@ export default function TicketCreatePage() {
             )}
           </select>
         ) : (
-          <div className="flex items-center gap-2">
-            <input
-              value={database}
-              onChange={(e) => setDatabase(e.target.value)}
-              className="w-full px-3 py-2 bg-[var(--dg-bg-primary)] border border-[var(--dg-border)] rounded-lg text-sm focus:outline-none focus:border-blue-500 transition-colors"
-              placeholder="目标数据库名"
-            />
-            {selectedInstance && (
-              <span className="text-xs text-[var(--dg-text-muted)] whitespace-nowrap">
-                {selectedInstance.db_type.toUpperCase()}
-              </span>
-            )}
-          </div>
+          <input
+            value={database}
+            onChange={(e) => setDatabase(e.target.value)}
+            disabled={!instanceId}
+            className="w-full px-3 py-2 bg-[var(--dg-bg-primary)] border border-[var(--dg-border)] rounded-lg text-sm focus:outline-none focus:border-blue-500 transition-colors disabled:opacity-50"
+            placeholder={instanceId ? '请输入数据库名' : '请先选择实例'}
+          />
         )}
       </div>
 
+      {/* Schema Browser */}
+      {renderSchemaBrowser()}
+
       {/* SQL Editor */}
       <div>
         <div className="flex items-center justify-between mb-2">
@@ -456,7 +715,7 @@ export default function TicketCreatePage() {
         />
         <p className="text-xs text-[var(--dg-text-muted)] mt-1.5 flex items-center gap-1">
           <Info className="w-3 h-3" />
-          支持 Ctrl+Shift+F 格式化代码
+          提交前必须通过 SQL 审核（语法检查 + 审核规则）
         </p>
       </div>
 
@@ -500,12 +759,12 @@ export default function TicketCreatePage() {
           {auditing ? (
             <>
               <Loader2 className="w-4 h-4 animate-spin" />
-              审核中...
+              验证审核中...
             </>
           ) : (
             <>
               <Shield className="w-4 h-4" />
-              审核并继续
+              验证并审核
             </>
           )}
         </button>
@@ -649,7 +908,7 @@ export default function TicketCreatePage() {
 
           {/* Rollback preview */}
           {rollbackSql && (
-            <div className="p-3 bg-[var(--dg-bg-primary)] rounded-lg border border-purple-500/20">
+            <div className="p-3 bg-[var(--dg-bg-primary)] rounded-lg">
               <div className="flex items-center gap-1.5 mb-1">
                 <RotateCcw className="w-3.5 h-3.5 text-purple-400" />
                 <span className="text-xs text-[var(--dg-text-muted)]">回滚 SQL</span>

frontend/src/pages/TicketDetailPage.tsx

@@ -7,7 +7,7 @@ import {
   BarChart3, ChevronDown, ChevronUp, Link2,
 } from 'lucide-react';
 import { ticketApi } from '@/api/ticket';
-import { statusMap, statusColorMap } from '@/lib/mock';
+import { statusMap, statusColorMap } from '@/lib/constants';
 import { useAuth } from '@/hooks/useAuth';
 import SqlEditor from '@/components/SqlEditor';
 
@@ -129,14 +129,25 @@ export default function TicketDetailPage() {
     }
   }, [ticketId]);
 
-  // Mock related tickets fetch
+  // Fetch related tickets from API
   const fetchRelated = useCallback(async () => {
-    // In real implementation: await ticketApi.related(ticketId)
-    setRelatedTickets([
-      { id: ticketId - 1, title: '用户表索引优化', status: 'success', applicant_name: '张三', create_time: '2024-01-14 10:00:00' },
-      { id: ticketId + 1, title: '订单数据归档', status: 'approved', applicant_name: '李四', create_time: '2024-01-15 14:00:00' },
-    ]);
-  }, [ticketId]);
+    try {
+      const res = await ticketApi.list({ instance_id: ticket?.instance_id, limit: 5 }) as { items?: any[] };
+      const items = (res?.items || [])
+        .filter((t: any) => t.id !== ticketId)
+        .slice(0, 5)
+        .map((t: any) => ({
+          id: t.id,
+          title: t.title,
+          status: t.status,
+          applicant_name: t.applicant_name || t.created_by_name,
+          create_time: t.created_at || t.create_time,
+        }));
+      setRelatedTickets(items);
+    } catch {
+      setRelatedTickets([]);
+    }
+  }, [ticketId, ticket?.instance_id]);
 
   useEffect(() => {
     if (!isNaN(ticketId)) {

frontend/src/pages/TicketsPage.tsx

@@ -7,7 +7,7 @@ import {
   CheckSquare, Square, ArrowUpDown, FileDown, Ban,
 } from 'lucide-react';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import { statusMap, statusColorMap, dbTypeColorMap } from '@/lib/mock';
+import { statusMap, statusColorMap, dbTypeColorMap } from '@/lib/constants';
 import { useActionPermission } from '@/hooks/useAuth';
 import PageHeader from '@/components/PageHeader';
 import EmptyState from '@/components/EmptyState';

frontend/src/pages/WorkflowPage.tsx

@@ -6,7 +6,7 @@ import {
   Loader2, Check, XCircle, Star,
 } from 'lucide-react';
 import { Card, CardContent } from '@/components/ui/card';
-import { dbTypeColorMap } from '@/lib/mock';
+import { dbTypeColorMap } from '@/lib/constants';
 import { workflowApi } from '@/api/workflow';
 
 /* ------------------------------------------------------------------ */