feat: align controlled AI sessions and MVP controls

backend/cmd/api/main.go

@@ -5,6 +5,7 @@ import (
 
 	"senlinai-agent/backend/internal/config"
 	"senlinai-agent/backend/internal/httpx"
+	"senlinai-agent/backend/internal/logic/ai"
 	"senlinai-agent/backend/internal/logic/auth"
 	"senlinai-agent/backend/internal/logic/files"
 	"senlinai-agent/backend/internal/logic/inbox"
@@ -33,6 +34,8 @@ func main() {
 	fileHandler := files.NewHandler(fileService, cfg.MaxUploadBytes)
 	inboxHandler := inbox.NewHandler(inbox.NewService(inbox.StaticAnalyzer{}))
 	searchHandler := search.NewHandler(search.NewService(models.DBService))
+	aiGateway := ai.NewGatewayWithSecret(cfg.SystemAIKey, cfg.AIKeyEncryptionSecret)
+	aiHandler := ai.NewHandler(ai.NewSessionService(aiGateway))
 	authHandler := auth.NewHandler(authService)
 	appRouter := httpx.NewProtectedRouter(
 		cfg,
@@ -45,6 +48,7 @@ func main() {
 		fileHandler,
 		inboxHandler,
 		searchHandler,
+		aiHandler,
 	)
 	if err := appRouter.Run(":" + cfg.Port); err != nil {
 		log.Fatal(err)