feat(clickhouse): integrate goose migrations and analytics repository

Add a separate ClickHouse OLAP pipeline with goose/clickhouse DDL as the
sole schema source, model/analytics for ORM mapping, and repository/analytics
for reads (ChDB/GORM) and batch writes (ChConn). Refactor risk_control and
admin/logs to use the repository layer instead of inline SQL. Remove the
manual support-files DDL and document the workflow in database-migration skill.

internal/db/clickhouse.go

@@ -7,12 +7,20 @@ package db
 
 import (
 	"context"
+	"fmt"
 	"log"
+	"net/url"
+	"strconv"
+	"strings"
 	"time"
 
 	"github.com/ClickHouse/clickhouse-go/v2"
 	"github.com/ClickHouse/clickhouse-go/v2/lib/driver"
 	"github.com/Rain-kl/Wavelet/internal/config"
+	"go.opentelemetry.io/otel/attribute"
+	clickhouseDriver "gorm.io/driver/clickhouse"
+	"gorm.io/gorm"
+	"gorm.io/plugin/opentelemetry/tracing"
 )
 
 const (
@@ -21,8 +29,10 @@ const (
 )
 
 var (
-	// ChConn ClickHouse 连接实例
+	// ChConn ClickHouse 原生连接实例，用于批量写入
 	ChConn driver.Conn
+
+	chDB *gorm.DB
 )
 
 func init() {
@@ -31,10 +41,55 @@ func init() {
 	}
 
 	cfg := config.Config.ClickHouse
-	var err error
+	opts := buildClickHouseOptions()
 
-	// 配置 ClickHouse 连接
-	ChConn, err = clickhouse.Open(&clickhouse.Options{
+	var err error
+	ChConn, err = clickhouse.Open(opts)
+	if err != nil {
+		log.Fatalf("[ClickHouse] init connection failed: %v\n", err)
+	}
+
+	if err = ChConn.Ping(context.Background()); err != nil {
+		log.Fatalf("[ClickHouse] ping failed: %v\n", err)
+	}
+
+	chDB, err = gorm.Open(clickhouseDriver.New(clickhouseDriver.Config{
+		DSN: buildClickHouseDSN(),
+	}), &gorm.Config{
+		SkipDefaultTransaction: true,
+	})
+	if err != nil {
+		log.Fatalf("[ClickHouse] init gorm connection failed: %v\n", err)
+	}
+
+	if err = chDB.Use(
+		tracing.NewPlugin(
+			tracing.WithoutMetrics(),
+			tracing.WithAttributes(
+				attribute.String("db.instance", cfg.Database),
+				attribute.String("db.system", "ClickHouse"),
+			),
+		),
+	); err != nil {
+		log.Fatalf("[ClickHouse] init trace failed: %v\n", err)
+	}
+
+	sqlDB, err := chDB.DB()
+	if err != nil {
+		log.Fatalf("[ClickHouse] load sql db failed: %v\n", err)
+	}
+
+	sqlDB.SetMaxIdleConns(cfg.MaxIdleConn)
+	sqlDB.SetMaxOpenConns(cfg.MaxOpenConn)
+	sqlDB.SetConnMaxLifetime(time.Duration(cfg.ConnMaxLifetime) * time.Second)
+
+	log.Println("[ClickHouse] connection established successfully")
+}
+
+func buildClickHouseOptions() *clickhouse.Options {
+	cfg := config.Config.ClickHouse
+
+	return &clickhouse.Options{
 		Addr: cfg.Hosts,
 		Auth: clickhouse.Auth{
 			Database: cfg.Database,
@@ -53,16 +108,44 @@ func init() {
 		ConnMaxLifetime: time.Duration(cfg.ConnMaxLifetime) * time.Second,
 		ReadTimeout:     time.Duration(cfg.DialTimeout*clickhouseReadTimeoutFactor) * time.Second,
 		BlockBufferSize: cfg.BlockBufferSize,
-	})
-
-	if err != nil {
-		log.Fatalf("[ClickHouse] init connection failed: %v\n", err)
 	}
-
-	// 测试连接
-	if err = ChConn.Ping(context.Background()); err != nil {
-		log.Fatalf("[ClickHouse] ping failed: %v\n", err)
-	}
-
-	log.Println("[ClickHouse] connection established successfully")
 }
+
+func buildClickHouseDSN() string {
+	cfg := config.Config.ClickHouse
+
+	chURL := &url.URL{
+		Scheme: "clickhouse",
+		Host:   strings.Join(cfg.Hosts, ","),
+		Path:   "/" + cfg.Database,
+	}
+	if cfg.Username != "" || cfg.Password != "" {
+		chURL.User = url.UserPassword(cfg.Username, cfg.Password)
+	}
+
+	query := chURL.Query()
+	query.Set("dial_timeout", fmt.Sprintf("%ds", cfg.DialTimeout))
+	query.Set("read_timeout", fmt.Sprintf("%ds", cfg.DialTimeout*clickhouseReadTimeoutFactor))
+	query.Set("max_execution_time", strconv.Itoa(clickhouseMaxExecTime))
+	chURL.RawQuery = query.Encode()
+
+	return chURL.String()
+}
+
+// ChDB returns a context-aware GORM ClickHouse instance.
+func ChDB(ctx context.Context) *gorm.DB {
+	if chDB == nil {
+		return nil
+	}
+	return chDB.WithContext(ctx)
+}
+
+// SetChDBForTest sets the package-level ClickHouse GORM instance for testing.
+func SetChDBForTest(d *gorm.DB) {
+	chDB = d
+}
+
+// SetChConnForTest sets the package-level native ClickHouse connection for testing.
+func SetChConnForTest(c driver.Conn) {
+	ChConn = c
+}