refactor(bootstrap): 引入解耦的全局生命周期管理器以隔离业务停机钩子

- 新建 internal/lifecycle 包，提供全局线程安全的 Shutdown 钩子注册与调度能力。
- 在 chwriter 与 risk_control 初始化阶段通过 OnShutdown 将其 Stop 函数注册到管理器中。
- bootstrap.Stop() 函数仅委托调用 lifecycle.Stop()，不再硬编码引入业务包，防止后续框架同步产生合并冲突。

internal/apps/openflare/chwriter/writer.go

@@ -13,6 +13,7 @@ import (
 
 	"github.com/Rain-kl/Wavelet/internal/config"
 	"github.com/Rain-kl/Wavelet/internal/db/batchwriter"
+	"github.com/Rain-kl/Wavelet/internal/lifecycle"
 	analyticsmodel "github.com/Rain-kl/Wavelet/internal/model/analytics"
 	analyticsrepo "github.com/Rain-kl/Wavelet/internal/repository/analytics"
 	"github.com/Rain-kl/Wavelet/pkg/logger"
@@ -65,6 +66,8 @@ func Init(ctx context.Context) {
 		frpsWriter.Start(ctx)
 		frpcWriter.Start(ctx)
 		nodeAccessLogWriter.Start(ctx)
+
+		lifecycle.OnShutdown("openflare_chwriter", Stop)
 	})
 }
 

internal/apps/risk_control/logics.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/Rain-kl/Wavelet/internal/config"
 	"github.com/Rain-kl/Wavelet/internal/db/batchwriter"
+	"github.com/Rain-kl/Wavelet/internal/lifecycle"
 	"github.com/Rain-kl/Wavelet/internal/model/analytics"
 	analyticsrepo "github.com/Rain-kl/Wavelet/internal/repository/analytics"
 	"github.com/Rain-kl/Wavelet/pkg/logger"
@@ -60,6 +61,7 @@ func InitLogWriter(ctx context.Context) {
 
 	writer.Start(ctx)
 	logWriter = writer
+	lifecycle.OnShutdown("risk_control_log_writer", StopLogWriter)
 }
 
 // StopLogWriter stops the ClickHouse access-log batch writer and drains pending logs.