feat: 项目重命名 SQL-Platform + 数据源表单重写(连接模式/流程/排除DB/脱敏)

- 项目名称 Web-Lite Pro → SQL-Platform 全局替换(13处)
- Instance 模型新增: access_mode, workflow, excluded_databases, mask_fields
- 创建数据源表单: 分区卡片(数据源信息/连接模式/流程/高级配置)
- 后端 JSON 字段序列化/反序列化
- 新增 5 个 Instance 字段测试 (133 total)

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

@@ -1,3 +1,4 @@
+import json
 from typing import Optional, List
 
 from fastapi import APIRouter, Depends, HTTPException
@@ -16,6 +17,29 @@ from app.services.audit_log_service import AuditLogService
 router = APIRouter(prefix="/instances", tags=["数据源管理"])
 
 
+def _serialize_json_fields(instance: Instance) -> dict:
+    """将 Instance 的 JSON text 字段反序列化为 dict/list，返回 Response dict"""
+    d = {
+        "id": instance.id,
+        "name": instance.name,
+        "db_type": instance.db_type,
+        "host": instance.host,
+        "port": instance.port,
+        "username": instance.username,
+        "database": instance.database,
+        "env": instance.env,
+        "description": instance.description,
+        "status": instance.status,
+        "version": instance.version,
+        "access_mode": instance.access_mode or "readwrite",
+        "workflow": json.loads(instance.workflow) if instance.workflow else None,
+        "excluded_databases": json.loads(instance.excluded_databases) if instance.excluded_databases else None,
+        "mask_fields": json.loads(instance.mask_fields) if instance.mask_fields else None,
+        "created_at": instance.created_at,
+    }
+    return d
+
+
 @router.get("", response_model=List[InstanceResponse])
 async def list_instances(
     db_type: Optional[str] = None,
@@ -29,7 +53,8 @@ async def list_instances(
     if env:
         stmt = stmt.where(Instance.env == env)
     result = await db.execute(stmt)
-    return result.scalars().all()
+    instances = result.scalars().all()
+    return [_serialize_json_fields(i) for i in instances]
 
 
 @router.post("", response_model=InstanceResponse, status_code=201)
@@ -48,6 +73,10 @@ async def create_instance(
         database=data.database,
         env=data.env,
         description=data.description,
+        access_mode=data.access_mode,
+        workflow=json.dumps([s.model_dump() for s in data.workflow], ensure_ascii=False) if data.workflow else None,
+        excluded_databases=json.dumps(data.excluded_databases, ensure_ascii=False) if data.excluded_databases else None,
+        mask_fields=json.dumps([m.model_dump() for m in data.mask_fields], ensure_ascii=False) if data.mask_fields else None,
     )
     db.add(instance)
     await db.flush()
@@ -58,7 +87,7 @@ async def create_instance(
     )
     await db.commit()
     await db.refresh(instance)
-    return instance
+    return _serialize_json_fields(instance)
 
 
 @router.get("/{instance_id}", response_model=InstanceResponse)
@@ -71,7 +100,7 @@ async def get_instance(
     instance = result.scalar_one_or_none()
     if not instance:
         raise HTTPException(status_code=404, detail="数据源不存在")
-    return instance
+    return _serialize_json_fields(instance)
 
 
 @router.put("/{instance_id}", response_model=InstanceResponse)
@@ -89,11 +118,19 @@ async def update_instance(
     update_data = data.model_dump(exclude_unset=True)
     if "password" in update_data:
         update_data["password"] = encrypt_password(update_data["password"])
+    # JSON fields
+    if "workflow" in update_data:
+        update_data["workflow"] = json.dumps([s if isinstance(s, dict) else s for s in update_data["workflow"]], ensure_ascii=False) if update_data["workflow"] else None
+    if "excluded_databases" in update_data:
+        update_data["excluded_databases"] = json.dumps(update_data["excluded_databases"], ensure_ascii=False) if update_data["excluded_databases"] else None
+    if "mask_fields" in update_data:
+        update_data["mask_fields"] = json.dumps([m if isinstance(m, dict) else m for m in update_data["mask_fields"]], ensure_ascii=False) if update_data["mask_fields"] else None
+
     for key, value in update_data.items():
         setattr(instance, key, value)
     await db.commit()
     await db.refresh(instance)
-    return instance
+    return _serialize_json_fields(instance)
 
 
 @router.delete("/{instance_id}")
@@ -128,7 +165,6 @@ async def test_connection(
     if not instance:
         raise HTTPException(status_code=404, detail="数据源不存在")
 
-    # Decrypt password for connection test
     instance.password = decrypt_password(instance.password)
     return await InstanceService.test_connection(instance)