feat: 18 引擎驱动全家桶 + 驱动管理/离线包 + 设置中心 + 工作台交互打磨

驱动接入（全部本机真实例验收）：
- Elasticsearch 原生 SQL API、InfluxDB 原生 HTTP+Flux（官方 JDBC 付费许可，实测弃用）
- ZooKeeper/MongoDB JVM agent（连接时自动下载官方驱动 jar，sha256 钉版本到 ~/.opsxdb/drivers/）
- 达梦 JDBC agent 桥就绪（待厂商 jar+实例）；TiDB 真实例验收
- 协议族代码审查放行 PolarDB/TDSQL/OceanBase/Kingbase/GaussDB/Oracle
- 驱动能力模型：按驱动开关对象树分组/右键菜单/行编辑，NoSQL 树拍平（对象直挂库节点）

驱动管理：
- 驱动管理弹框（状态/预装/离线包导入/JDK 检测）+ /api/drivers/* 三接口
- opsxdb-driver 驱动商店仓库（清单/fetch.sh/pack.sh 离线包/import.sh）
- 连接时懒加载：DMG 零 Java 产物，首连自动下载（实测 ZK 九件套 1.35s），离线包自动回退

UI/交互：
- 设置中心（⚙）：常规/执行/结果/驱动/快捷键/关于，左导航+右面板（对标 opsxshell）
- 实例级展开箭头（行首 SVG chevron，替代字体回退失真的 Unicode 三角）
- 树内嵌套渲染修复：对象树挂在激活连接下；工具栏窄窗口不断行（按钮 nowrap+整颗换行）
- 侧栏连接行精简（图标+连接名）、SQLite SSH 守卫、Oracle 死参数清理

质量：
- Go 协议层/离线回退单测、E2E 门控测试（ES/ZK/Influx/Mongo/TiDB/JDBC 桥）
- 驱动注册表单一事实来源 connection-types.json，README/BACKLOG/AGENTS 同步

apps/server/internal/db/mssql.go

@@ -1,6 +1,7 @@
 package db
 
 import (
+	"context"
 	"database/sql"
 	"fmt"
 	"net/url"
@@ -10,6 +11,16 @@ import (
 )
 
 func openMSSQL(c ConnReq) (*sql.DB, error) {
+	dsn, err := mssqlDSN(c)
+	if err != nil {
+		return nil, err
+	}
+	return sql.Open("sqlserver", dsn)
+}
+
+// mssqlDSN 拼 sqlserver:// DSN;账号密码走 url.UserPassword 编码,
+// 修复含空格 / '+' 等特殊字符密码连接失败的问题(url.QueryEscape 不适用 userinfo)。
+func mssqlDSN(c ConnReq) (string, error) {
 	host := c.Host
 	if host == "" {
 		host = "127.0.0.1"
@@ -44,7 +55,7 @@ func openMSSQL(c ConnReq) (*sql.DB, error) {
 		q.Set("TrustServerCertificate", "false")
 		ca := strings.TrimSpace(c.SSLCA)
 		if mode == "verify-ca" && ca == "" {
-			return nil, fmt.Errorf("verify-ca 模式需要填写 CA 证书路径")
+			return "", fmt.Errorf("verify-ca 模式需要填写 CA 证书路径")
 		}
 		if ca != "" {
 			// go-mssqldb msdsn certificate= builds RootCAs from PEM/DER
@@ -54,15 +65,19 @@ func openMSSQL(c ConnReq) (*sql.DB, error) {
 			q.Set("hostnameincertificate", host)
 		}
 	default:
-		return nil, fmt.Errorf("未知 SSL 模式: %s", mode)
+		return "", fmt.Errorf("未知 SSL 模式: %s", mode)
 	}
-	dsn := fmt.Sprintf("sqlserver://%s:%s@%s:%d?%s",
-		url.QueryEscape(user), url.QueryEscape(c.Password), host, port, q.Encode())
-	return sql.Open("sqlserver", dsn)
+	u := &url.URL{
+		Scheme:   "sqlserver",
+		User:     url.UserPassword(user, c.Password),
+		Host:     fmt.Sprintf("%s:%d", host, port),
+		RawQuery: q.Encode(),
+	}
+	return u.String(), nil
 }
 
-func listDatabasesMSSQL(db *sql.DB) ([]string, error) {
-	rows, err := db.Query(`SELECT name FROM sys.databases WHERE name NOT IN ('master','tempdb','model','msdb') ORDER BY name`)
+func listDatabasesMSSQL(ctx context.Context, db *sql.DB) ([]string, error) {
+	rows, err := db.QueryContext(ctx, `SELECT name FROM sys.databases WHERE name NOT IN ('master','tempdb','model','msdb') ORDER BY name`)
 	if err != nil {
 		return nil, err
 	}
@@ -78,9 +93,9 @@ func listDatabasesMSSQL(db *sql.DB) ([]string, error) {
 	return out, rows.Err()
 }
 
-func listTablesMSSQL(db *sql.DB, database string) ([]string, error) {
+func listTablesMSSQL(ctx context.Context, db *sql.DB, database string) ([]string, error) {
 	_ = database
-	rows, err := db.Query(`
+	rows, err := db.QueryContext(ctx, `
 		SELECT TABLE_SCHEMA + '.' + TABLE_NAME
 		FROM INFORMATION_SCHEMA.TABLES
 		WHERE TABLE_TYPE = 'BASE TABLE'
@@ -100,33 +115,39 @@ func listTablesMSSQL(db *sql.DB, database string) ([]string, error) {
 	return out, rows.Err()
 }
 
-func listColumnsMSSQL(dbh *sql.DB, _, table string) ([]ColumnInfo, error) {
+func listColumnsMSSQL(ctx context.Context, dbh *sql.DB, _, table string) ([]ColumnInfo, error) {
 	schema, t := splitSchemaTable(table)
 	if schema == "" {
 		schema = "dbo"
 	}
-	rows, err := dbh.Query(`
-		SELECT COLUMN_NAME, DATA_TYPE,
-			ISNULL(CAST(CHARACTER_MAXIMUM_LENGTH AS varchar), ''),
-			IS_NULLABLE, COLUMN_DEFAULT
-		FROM INFORMATION_SCHEMA.COLUMNS
-		WHERE TABLE_SCHEMA = @p1 AND TABLE_NAME = @p2
-		ORDER BY ORDINAL_POSITION`, schema, t)
+	// 关联 sys.indexes / sys.index_columns 补主键标记(命中则 Key='PRI')
+	rows, err := dbh.QueryContext(ctx, `
+		SELECT c.COLUMN_NAME, c.DATA_TYPE,
+			ISNULL(CAST(c.CHARACTER_MAXIMUM_LENGTH AS varchar), ''),
+			c.IS_NULLABLE, c.COLUMN_DEFAULT,
+			CASE WHEN pk.name IS NOT NULL THEN 'PRI' ELSE '' END
+		FROM INFORMATION_SCHEMA.COLUMNS c
+		LEFT JOIN sys.tables t ON t.name = c.TABLE_NAME AND SCHEMA_NAME(t.schema_id) = c.TABLE_SCHEMA
+		LEFT JOIN sys.indexes i ON i.object_id = t.object_id AND i.is_primary_key = 1
+		LEFT JOIN sys.index_columns ic ON ic.object_id = i.object_id AND ic.index_id = i.index_id
+		LEFT JOIN sys.columns pk ON pk.object_id = ic.object_id AND pk.column_id = ic.column_id AND pk.name = c.COLUMN_NAME
+		WHERE c.TABLE_SCHEMA = @p1 AND c.TABLE_NAME = @p2
+		ORDER BY c.ORDINAL_POSITION`, schema, t)
 	if err != nil {
 		return nil, err
 	}
 	defer rows.Close()
 	var out []ColumnInfo
 	for rows.Next() {
-		var name, typ, extra, nullable string
+		var name, typ, extra, nullable, key string
 		var def sql.NullString
-		if err := rows.Scan(&name, &typ, &extra, &nullable, &def); err != nil {
+		if err := rows.Scan(&name, &typ, &extra, &nullable, &def, &key); err != nil {
 			return nil, err
 		}
 		if extra != "" && extra != "-1" {
 			typ = typ + "(" + extra + ")"
 		}
-		col := ColumnInfo{Name: name, Type: typ, Nullable: nullable == "YES"}
+		col := ColumnInfo{Name: name, Type: typ, Nullable: nullable == "YES", Key: key}
 		if def.Valid {
 			col.Default = def.String
 		}