fix(backend): harden final MVP invariants

backend/internal/httpx/router_integration_test.go

@@ -6,24 +6,36 @@ import (
 	"github.com/stretchr/testify/require"
 	"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"
 	"senlinai-agent/backend/internal/logic/projects"
+	"senlinai-agent/backend/internal/logic/search"
 	"senlinai-agent/backend/internal/logic/tasks"
 )
 
-func TestBackendFeatureRoutesRegisterTogether(t *testing.T) {
+func TestMainRegistrarsRegisterTogether(t *testing.T) {
 	require.NotPanics(t, func() {
+		cfg := config.Config{
+			Env:                   "test",
+			AuthSecret:            "test-auth-secret",
+			AIKeyEncryptionSecret: "test-ai-encryption-secret",
+		}
+		authService := auth.NewService(cfg.AuthSecret)
 		projectService := projects.NewService()
 		httpx.NewProtectedRouter(
-			config.Config{Env: "test"},
-			func(token string) (uint, error) { return 1, nil },
+			cfg,
+			authService.VerifySession,
+			auth.NewHandler(authService),
 			projects.NewHandler(projectService),
 			projects.NewTagHandler(projectService),
 			projects.NewCronHandler(projectService),
 			tasks.NewHandler(tasks.NewService()),
 			files.NewHandler(files.NewService(t.TempDir())),
 			inbox.NewHandler(inbox.NewService(inbox.StaticAnalyzer{})),
+			search.NewHandler(search.NewService(nil)),
+			ai.NewHandler(ai.NewSessionService(ai.NewGatewayWithSecret(cfg.SystemAIKey, cfg.AIKeyEncryptionSecret))),
 		)
 	})
 }