feat: add affiliate invite rebate flow and admin rebate-rate setting

backend/internal/handler/wire.go

@@ -80,6 +80,18 @@ func ProvideSettingHandler(settingService *service.SettingService, buildInfo Bui
 	return NewSettingHandler(settingService, buildInfo.Version)
 }
 
+func ProvideUserHandler(
+	userService *service.UserService,
+	authService *service.AuthService,
+	emailService *service.EmailService,
+	emailCache service.EmailCache,
+	affiliateService *service.AffiliateService,
+) *UserHandler {
+	handler := NewUserHandler(userService, authService, emailService, emailCache)
+	handler.SetAffiliateService(affiliateService)
+	return handler
+}
+
 // ProvideHandlers creates the Handlers struct
 func ProvideHandlers(
 	authHandler *AuthHandler,
@@ -125,7 +137,7 @@ func ProvideHandlers(
 var ProviderSet = wire.NewSet(
 	// Top-level handlers
 	NewAuthHandler,
-	NewUserHandler,
+	ProvideUserHandler,
 	NewAPIKeyHandler,
 	NewUsageHandler,
 	NewRedeemHandler,