feat(settings): support dual-mode wechat oauth defaults

backend/internal/handler/admin/setting_handler.go

@@ -125,6 +125,8 @@ func (h *SettingHandler) GetSettings(c *gin.Context) {
 		WeChatConnectEnabled:                 settings.WeChatConnectEnabled,
 		WeChatConnectAppID:                   settings.WeChatConnectAppID,
 		WeChatConnectAppSecretConfigured:     settings.WeChatConnectAppSecretConfigured,
+		WeChatConnectOpenEnabled:             settings.WeChatConnectOpenEnabled,
+		WeChatConnectMPEnabled:               settings.WeChatConnectMPEnabled,
 		WeChatConnectMode:                    settings.WeChatConnectMode,
 		WeChatConnectScopes:                  settings.WeChatConnectScopes,
 		WeChatConnectRedirectURL:             settings.WeChatConnectRedirectURL,
@@ -257,6 +259,8 @@ type UpdateSettingsRequest struct {
 	WeChatConnectEnabled             bool   `json:"wechat_connect_enabled"`
 	WeChatConnectAppID               string `json:"wechat_connect_app_id"`
 	WeChatConnectAppSecret           string `json:"wechat_connect_app_secret"`
+	WeChatConnectOpenEnabled         bool   `json:"wechat_connect_open_enabled"`
+	WeChatConnectMPEnabled           bool   `json:"wechat_connect_mp_enabled"`
 	WeChatConnectMode                string `json:"wechat_connect_mode"`
 	WeChatConnectScopes              string `json:"wechat_connect_scopes"`
 	WeChatConnectRedirectURL         string `json:"wechat_connect_redirect_url"`
@@ -544,17 +548,35 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 			}
 			req.WeChatConnectAppSecret = previousSettings.WeChatConnectAppSecret
 		}
-		if req.WeChatConnectMode == "" {
+		if req.WeChatConnectMode != "" {
-			req.WeChatConnectMode = "open"
+			switch req.WeChatConnectMode {
+			case "open", "mp":
+			default:
+				response.BadRequest(c, "WeChat mode must be open or mp")
+				return
+			}
 		}
-		switch req.WeChatConnectMode {
+		if !req.WeChatConnectOpenEnabled && !req.WeChatConnectMPEnabled {
-		case "open", "mp":
+			switch req.WeChatConnectMode {
-		default:
+			case "mp":
-			response.BadRequest(c, "WeChat mode must be open or mp")
+				req.WeChatConnectMPEnabled = true
-			return
+			default:
+				req.WeChatConnectOpenEnabled = true
+			}
+		}
+		if req.WeChatConnectMode == "" {
+			if req.WeChatConnectMPEnabled {
+				req.WeChatConnectMode = "mp"
+			} else {
+				req.WeChatConnectMode = "open"
+			}
 		}
 		if req.WeChatConnectScopes == "" {
-			req.WeChatConnectScopes = service.DefaultWeChatConnectScopesForMode(req.WeChatConnectMode)
+			if req.WeChatConnectMPEnabled {
+				req.WeChatConnectScopes = service.DefaultWeChatConnectScopesForMode("mp")
+			} else {
+				req.WeChatConnectScopes = service.DefaultWeChatConnectScopesForMode(req.WeChatConnectMode)
+			}
 		}
 		if req.WeChatConnectRedirectURL == "" {
 			response.BadRequest(c, "WeChat Redirect URL is required when enabled")
@@ -924,6 +946,8 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		WeChatConnectEnabled:             req.WeChatConnectEnabled,
 		WeChatConnectAppID:               req.WeChatConnectAppID,
 		WeChatConnectAppSecret:           req.WeChatConnectAppSecret,
+		WeChatConnectOpenEnabled:         req.WeChatConnectOpenEnabled,
+		WeChatConnectMPEnabled:           req.WeChatConnectMPEnabled,
 		WeChatConnectMode:                req.WeChatConnectMode,
 		WeChatConnectScopes:              req.WeChatConnectScopes,
 		WeChatConnectRedirectURL:         req.WeChatConnectRedirectURL,
@@ -1210,6 +1234,8 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		WeChatConnectEnabled:                 updatedSettings.WeChatConnectEnabled,
 		WeChatConnectAppID:                   updatedSettings.WeChatConnectAppID,
 		WeChatConnectAppSecretConfigured:     updatedSettings.WeChatConnectAppSecretConfigured,
+		WeChatConnectOpenEnabled:             updatedSettings.WeChatConnectOpenEnabled,
+		WeChatConnectMPEnabled:               updatedSettings.WeChatConnectMPEnabled,
 		WeChatConnectMode:                    updatedSettings.WeChatConnectMode,
 		WeChatConnectScopes:                  updatedSettings.WeChatConnectScopes,
 		WeChatConnectRedirectURL:             updatedSettings.WeChatConnectRedirectURL,
@@ -1416,6 +1442,12 @@ func diffSettings(before *service.SystemSettings, after *service.SystemSettings,
 	if req.WeChatConnectAppSecret != "" {
 		changed = append(changed, "wechat_connect_app_secret")
 	}
+	if before.WeChatConnectOpenEnabled != after.WeChatConnectOpenEnabled {
+		changed = append(changed, "wechat_connect_open_enabled")
+	}
+	if before.WeChatConnectMPEnabled != after.WeChatConnectMPEnabled {
+		changed = append(changed, "wechat_connect_mp_enabled")
+	}
 	if before.WeChatConnectMode != after.WeChatConnectMode {
 		changed = append(changed, "wechat_connect_mode")
 	}

backend/internal/handler/dto/settings.go

@@ -54,6 +54,8 @@ type SystemSettings struct {
 	WeChatConnectEnabled             bool   `json:"wechat_connect_enabled"`
 	WeChatConnectAppID               string `json:"wechat_connect_app_id"`
 	WeChatConnectAppSecretConfigured bool   `json:"wechat_connect_app_secret_configured"`
+	WeChatConnectOpenEnabled         bool   `json:"wechat_connect_open_enabled"`
+	WeChatConnectMPEnabled           bool   `json:"wechat_connect_mp_enabled"`
 	WeChatConnectMode                string `json:"wechat_connect_mode"`
 	WeChatConnectScopes              string `json:"wechat_connect_scopes"`
 	WeChatConnectRedirectURL         string `json:"wechat_connect_redirect_url"`

backend/internal/handler/setting_handler_public_test.go

@@ -91,6 +91,8 @@ func TestSettingHandler_GetPublicSettings_ExposesWeChatOAuthModeCapabilities(t *
 			service.SettingKeyWeChatConnectAppSecret:           "wx-mp-secret",
 			service.SettingKeyWeChatConnectMode:                "mp",
 			service.SettingKeyWeChatConnectScopes:              "snsapi_base",
+			service.SettingKeyWeChatConnectOpenEnabled:         "true",
+			service.SettingKeyWeChatConnectMPEnabled:           "true",
 			service.SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
 			service.SettingKeyWeChatConnectFrontendRedirectURL: "/auth/wechat/callback",
 		},
@@ -115,6 +117,6 @@ func TestSettingHandler_GetPublicSettings_ExposesWeChatOAuthModeCapabilities(t *
 	require.NoError(t, json.Unmarshal(recorder.Body.Bytes(), &resp))
 	require.Equal(t, 0, resp.Code)
 	require.True(t, resp.Data.WeChatOAuthEnabled)
-	require.False(t, resp.Data.WeChatOAuthOpenEnabled)
+	require.True(t, resp.Data.WeChatOAuthOpenEnabled)
 	require.True(t, resp.Data.WeChatOAuthMPEnabled)
 }

backend/internal/service/domain_constants.go

@@ -115,6 +115,8 @@ const (
 	SettingKeyWeChatConnectEnabled             = "wechat_connect_enabled"
 	SettingKeyWeChatConnectAppID               = "wechat_connect_app_id"
 	SettingKeyWeChatConnectAppSecret           = "wechat_connect_app_secret"
+	SettingKeyWeChatConnectOpenEnabled         = "wechat_connect_open_enabled"
+	SettingKeyWeChatConnectMPEnabled           = "wechat_connect_mp_enabled"
 	SettingKeyWeChatConnectMode                = "wechat_connect_mode"
 	SettingKeyWeChatConnectScopes              = "wechat_connect_scopes"
 	SettingKeyWeChatConnectRedirectURL         = "wechat_connect_redirect_url"

backend/internal/service/payment_order.go

@@ -519,7 +519,7 @@ func (s *PaymentService) getWeChatPaymentOAuthCredential(ctx context.Context) (s
 		)
 	}
 	cfg, err := (&SettingService{settingRepo: s.configService.settingRepo}).GetWeChatConnectOAuthConfig(ctx)
-	if err != nil || cfg.Mode != "mp" || strings.TrimSpace(cfg.AppID) == "" || strings.TrimSpace(cfg.AppSecret) == "" {
+	if err != nil || !cfg.SupportsMode("mp") || strings.TrimSpace(cfg.AppID) == "" || strings.TrimSpace(cfg.AppSecret) == "" {
 		return "", "", infraerrors.ServiceUnavailable(
 			"WECHAT_PAYMENT_MP_NOT_CONFIGURED",
 			"wechat in-app payment requires a complete WeChat MP OAuth credential",

backend/internal/service/setting_service.go

@@ -209,6 +209,39 @@ func normalizeWeChatConnectScopeSetting(raw, mode string) string {
 	}
 }
 
+func parseWeChatConnectCapabilitySettings(settings map[string]string, enabled bool, mode string) (bool, bool) {
+	mode = normalizeWeChatConnectModeSetting(mode)
+	rawOpen, hasOpen := settings[SettingKeyWeChatConnectOpenEnabled]
+	rawMP, hasMP := settings[SettingKeyWeChatConnectMPEnabled]
+	openConfigured := hasOpen && strings.TrimSpace(rawOpen) != ""
+	mpConfigured := hasMP && strings.TrimSpace(rawMP) != ""
+
+	if openConfigured || mpConfigured {
+		openEnabled := strings.TrimSpace(rawOpen) == "true"
+		mpEnabled := strings.TrimSpace(rawMP) == "true"
+		return openEnabled, mpEnabled
+	}
+
+	if !enabled {
+		return false, false
+	}
+	if mode == "mp" {
+		return false, true
+	}
+	return true, false
+}
+
+func normalizeWeChatConnectStoredMode(openEnabled, mpEnabled bool, mode string) string {
+	switch {
+	case mpEnabled:
+		return "mp"
+	case openEnabled:
+		return "open"
+	default:
+		return normalizeWeChatConnectModeSetting(mode)
+	}
+}
+
 // NewSettingService 创建系统设置服务实例
 func NewSettingService(settingRepo SettingRepository, cfg *config.Config) *SettingService {
 	return &SettingService{
@@ -277,6 +310,8 @@ func (s *SettingService) GetPublicSettings(ctx context.Context) (*PublicSettings
 		SettingKeyWeChatConnectEnabled,
 		SettingKeyWeChatConnectAppID,
 		SettingKeyWeChatConnectAppSecret,
+		SettingKeyWeChatConnectOpenEnabled,
+		SettingKeyWeChatConnectMPEnabled,
 		SettingKeyWeChatConnectMode,
 		SettingKeyWeChatConnectScopes,
 		SettingKeyWeChatConnectRedirectURL,
@@ -475,12 +510,19 @@ func DefaultWeChatConnectScopesForMode(mode string) string {
 }
 
 func (s *SettingService) parseWeChatConnectOAuthConfig(settings map[string]string) (WeChatConnectOAuthConfig, error) {
+	enabled := settings[SettingKeyWeChatConnectEnabled] == "true"
+	mode := normalizeWeChatConnectModeSetting(settings[SettingKeyWeChatConnectMode])
+	openEnabled, mpEnabled := parseWeChatConnectCapabilitySettings(settings, enabled, mode)
+	mode = normalizeWeChatConnectStoredMode(openEnabled, mpEnabled, mode)
+
 	cfg := WeChatConnectOAuthConfig{
-		Enabled:             settings[SettingKeyWeChatConnectEnabled] == "true",
+		Enabled:             enabled,
 		AppID:               strings.TrimSpace(settings[SettingKeyWeChatConnectAppID]),
 		AppSecret:           strings.TrimSpace(settings[SettingKeyWeChatConnectAppSecret]),
-		Mode:                normalizeWeChatConnectModeSetting(settings[SettingKeyWeChatConnectMode]),
+		OpenEnabled:         openEnabled,
-		Scopes:              normalizeWeChatConnectScopeSetting(settings[SettingKeyWeChatConnectScopes], settings[SettingKeyWeChatConnectMode]),
+		MPEnabled:           mpEnabled,
+		Mode:                mode,
+		Scopes:              normalizeWeChatConnectScopeSetting(settings[SettingKeyWeChatConnectScopes], mode),
 		RedirectURL:         strings.TrimSpace(settings[SettingKeyWeChatConnectRedirectURL]),
 		FrontendRedirectURL: strings.TrimSpace(settings[SettingKeyWeChatConnectFrontendRedirectURL]),
 	}
@@ -488,7 +530,7 @@ func (s *SettingService) parseWeChatConnectOAuthConfig(settings map[string]strin
 		cfg.FrontendRedirectURL = defaultWeChatConnectFrontend
 	}
 
-	if !cfg.Enabled {
+	if !cfg.Enabled || (!cfg.OpenEnabled && !cfg.MPEnabled) {
 		return WeChatConnectOAuthConfig{}, infraerrors.NotFound("OAUTH_DISABLED", "wechat oauth is disabled")
 	}
 	if cfg.AppID == "" {
@@ -517,7 +559,7 @@ func (s *SettingService) weChatOAuthCapabilitiesFromSettings(settings map[string
 	if err != nil {
 		return false, false, false
 	}
-	return true, cfg.Mode == "open", cfg.Mode == "mp"
+	return true, cfg.OpenEnabled, cfg.MPEnabled
 }
 
 // filterUserVisibleMenuItems filters out admin-only menu items from a raw JSON
@@ -702,7 +744,11 @@ func (s *SettingService) buildSystemSettingsUpdates(ctx context.Context, setting
 	settings.PaymentVisibleMethodWxpaySource = wxpaySource
 	settings.WeChatConnectAppID = strings.TrimSpace(settings.WeChatConnectAppID)
 	settings.WeChatConnectAppSecret = strings.TrimSpace(settings.WeChatConnectAppSecret)
-	settings.WeChatConnectMode = normalizeWeChatConnectModeSetting(settings.WeChatConnectMode)
+	settings.WeChatConnectMode = normalizeWeChatConnectStoredMode(
+		settings.WeChatConnectOpenEnabled,
+		settings.WeChatConnectMPEnabled,
+		settings.WeChatConnectMode,
+	)
 	settings.WeChatConnectScopes = normalizeWeChatConnectScopeSetting(settings.WeChatConnectScopes, settings.WeChatConnectMode)
 	settings.WeChatConnectRedirectURL = strings.TrimSpace(settings.WeChatConnectRedirectURL)
 	settings.WeChatConnectFrontendRedirectURL = strings.TrimSpace(settings.WeChatConnectFrontendRedirectURL)
@@ -781,6 +827,8 @@ func (s *SettingService) buildSystemSettingsUpdates(ctx context.Context, setting
 	// WeChat Connect OAuth 登录
 	updates[SettingKeyWeChatConnectEnabled] = strconv.FormatBool(settings.WeChatConnectEnabled)
 	updates[SettingKeyWeChatConnectAppID] = settings.WeChatConnectAppID
+	updates[SettingKeyWeChatConnectOpenEnabled] = strconv.FormatBool(settings.WeChatConnectOpenEnabled)
+	updates[SettingKeyWeChatConnectMPEnabled] = strconv.FormatBool(settings.WeChatConnectMPEnabled)
 	updates[SettingKeyWeChatConnectMode] = settings.WeChatConnectMode
 	updates[SettingKeyWeChatConnectScopes] = settings.WeChatConnectScopes
 	updates[SettingKeyWeChatConnectRedirectURL] = settings.WeChatConnectRedirectURL
@@ -1296,6 +1344,8 @@ func (s *SettingService) InitializeDefaultSettings(ctx context.Context) error {
 		SettingKeyCustomMenuItems:                          "[]",
 		SettingKeyCustomEndpoints:                          "[]",
 		SettingKeyWeChatConnectEnabled:                     "false",
+		SettingKeyWeChatConnectOpenEnabled:                 "false",
+		SettingKeyWeChatConnectMPEnabled:                   "false",
 		SettingKeyWeChatConnectMode:                        "open",
 		SettingKeyWeChatConnectScopes:                      "snsapi_login",
 		SettingKeyWeChatConnectFrontendRedirectURL:         defaultWeChatConnectFrontend,
@@ -1307,22 +1357,22 @@ func (s *SettingService) InitializeDefaultSettings(ctx context.Context) error {
 		SettingKeyAuthSourceDefaultEmailBalance:            "0",
 		SettingKeyAuthSourceDefaultEmailConcurrency:        "5",
 		SettingKeyAuthSourceDefaultEmailSubscriptions:      "[]",
-		SettingKeyAuthSourceDefaultEmailGrantOnSignup:      "true",
+		SettingKeyAuthSourceDefaultEmailGrantOnSignup:      "false",
 		SettingKeyAuthSourceDefaultEmailGrantOnFirstBind:   "false",
 		SettingKeyAuthSourceDefaultLinuxDoBalance:          "0",
 		SettingKeyAuthSourceDefaultLinuxDoConcurrency:      "5",
 		SettingKeyAuthSourceDefaultLinuxDoSubscriptions:    "[]",
-		SettingKeyAuthSourceDefaultLinuxDoGrantOnSignup:    "true",
+		SettingKeyAuthSourceDefaultLinuxDoGrantOnSignup:    "false",
 		SettingKeyAuthSourceDefaultLinuxDoGrantOnFirstBind: "false",
 		SettingKeyAuthSourceDefaultOIDCBalance:             "0",
 		SettingKeyAuthSourceDefaultOIDCConcurrency:         "5",
 		SettingKeyAuthSourceDefaultOIDCSubscriptions:       "[]",
-		SettingKeyAuthSourceDefaultOIDCGrantOnSignup:       "true",
+		SettingKeyAuthSourceDefaultOIDCGrantOnSignup:       "false",
 		SettingKeyAuthSourceDefaultOIDCGrantOnFirstBind:    "false",
 		SettingKeyAuthSourceDefaultWeChatBalance:           "0",
 		SettingKeyAuthSourceDefaultWeChatConcurrency:       "5",
 		SettingKeyAuthSourceDefaultWeChatSubscriptions:     "[]",
-		SettingKeyAuthSourceDefaultWeChatGrantOnSignup:     "true",
+		SettingKeyAuthSourceDefaultWeChatGrantOnSignup:     "false",
 		SettingKeyAuthSourceDefaultWeChatGrantOnFirstBind:  "false",
 		SettingKeyForceEmailOnThirdPartySignup:             "false",
 		SettingKeySMTPPort:                                 "587",
@@ -1595,8 +1645,17 @@ func (s *SettingService) parseSettings(settings map[string]string) *SystemSettin
 	result.WeChatConnectAppID = strings.TrimSpace(settings[SettingKeyWeChatConnectAppID])
 	result.WeChatConnectAppSecret = strings.TrimSpace(settings[SettingKeyWeChatConnectAppSecret])
 	result.WeChatConnectAppSecretConfigured = result.WeChatConnectAppSecret != ""
-	result.WeChatConnectMode = normalizeWeChatConnectModeSetting(settings[SettingKeyWeChatConnectMode])
+	result.WeChatConnectOpenEnabled, result.WeChatConnectMPEnabled = parseWeChatConnectCapabilitySettings(
-	result.WeChatConnectScopes = normalizeWeChatConnectScopeSetting(settings[SettingKeyWeChatConnectScopes], settings[SettingKeyWeChatConnectMode])
+		settings,
+		result.WeChatConnectEnabled,
+		settings[SettingKeyWeChatConnectMode],
+	)
+	result.WeChatConnectMode = normalizeWeChatConnectStoredMode(
+		result.WeChatConnectOpenEnabled,
+		result.WeChatConnectMPEnabled,
+		settings[SettingKeyWeChatConnectMode],
+	)
+	result.WeChatConnectScopes = normalizeWeChatConnectScopeSetting(settings[SettingKeyWeChatConnectScopes], result.WeChatConnectMode)
 	result.WeChatConnectRedirectURL = strings.TrimSpace(settings[SettingKeyWeChatConnectRedirectURL])
 	result.WeChatConnectFrontendRedirectURL = strings.TrimSpace(settings[SettingKeyWeChatConnectFrontendRedirectURL])
 	if result.WeChatConnectFrontendRedirectURL == "" {
@@ -1744,7 +1803,7 @@ func parseProviderDefaultGrantSettings(settings map[string]string, keys authSour
 		Balance:          defaultAuthSourceBalance,
 		Concurrency:      defaultAuthSourceConcurrency,
 		Subscriptions:    []DefaultSubscriptionSetting{},
-		GrantOnSignup:    true,
+		GrantOnSignup:    false,
 		GrantOnFirstBind: false,
 	}
 
@@ -2092,6 +2151,8 @@ func (s *SettingService) GetWeChatConnectOAuthConfig(ctx context.Context) (WeCha
 		SettingKeyWeChatConnectEnabled,
 		SettingKeyWeChatConnectAppID,
 		SettingKeyWeChatConnectAppSecret,
+		SettingKeyWeChatConnectOpenEnabled,
+		SettingKeyWeChatConnectMPEnabled,
 		SettingKeyWeChatConnectMode,
 		SettingKeyWeChatConnectScopes,
 		SettingKeyWeChatConnectRedirectURL,

backend/internal/service/setting_service_auth_source_defaults_test.go

@@ -81,10 +81,12 @@ func TestSettingService_GetAuthSourceDefaultSettings_ParsesValuesAndDefaults(t *
 	require.Equal(t, 0.0, got.LinuxDo.Balance)
 	require.Equal(t, 5, got.LinuxDo.Concurrency)
 	require.Equal(t, []DefaultSubscriptionSetting{}, got.LinuxDo.Subscriptions)
-	require.True(t, got.LinuxDo.GrantOnSignup)
+	require.False(t, got.LinuxDo.GrantOnSignup)
 	require.True(t, got.LinuxDo.GrantOnFirstBind)
 	require.Equal(t, 5, got.OIDC.Concurrency)
 	require.Equal(t, 5, got.WeChat.Concurrency)
+	require.False(t, got.OIDC.GrantOnSignup)
+	require.False(t, got.WeChat.GrantOnSignup)
 	require.True(t, got.ForceEmailOnThirdPartySignup)
 }
 

backend/internal/service/setting_service_public_test.go

@@ -99,6 +99,8 @@ func TestSettingService_GetPublicSettings_ExposesWeChatOAuthModeCapabilities(t *
 			SettingKeyWeChatConnectAppSecret:           "wx-mp-secret",
 			SettingKeyWeChatConnectMode:                "mp",
 			SettingKeyWeChatConnectScopes:              "snsapi_base",
+			SettingKeyWeChatConnectOpenEnabled:         "true",
+			SettingKeyWeChatConnectMPEnabled:           "true",
 			SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
 			SettingKeyWeChatConnectFrontendRedirectURL: "/auth/wechat/callback",
 		},
@@ -107,6 +109,6 @@ func TestSettingService_GetPublicSettings_ExposesWeChatOAuthModeCapabilities(t *
 	settings, err := svc.GetPublicSettings(context.Background())
 	require.NoError(t, err)
 	require.True(t, settings.WeChatOAuthEnabled)
-	require.False(t, settings.WeChatOAuthOpenEnabled)
+	require.True(t, settings.WeChatOAuthOpenEnabled)
 	require.True(t, settings.WeChatOAuthMPEnabled)
 }

backend/internal/service/setting_service_wechat_config_test.go

@@ -59,6 +59,8 @@ func TestSettingService_GetWeChatConnectOAuthConfig_UsesDatabaseOverrides(t *tes
 			SettingKeyWeChatConnectAppSecret:           "wx-db-secret",
 			SettingKeyWeChatConnectMode:                "mp",
 			SettingKeyWeChatConnectScopes:              "snsapi_base",
+			SettingKeyWeChatConnectOpenEnabled:         "true",
+			SettingKeyWeChatConnectMPEnabled:           "true",
 			SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
 			SettingKeyWeChatConnectFrontendRedirectURL: "/auth/wechat/callback",
 		},
@@ -70,6 +72,8 @@ func TestSettingService_GetWeChatConnectOAuthConfig_UsesDatabaseOverrides(t *tes
 	require.True(t, got.Enabled)
 	require.Equal(t, "wx-db-app", got.AppID)
 	require.Equal(t, "wx-db-secret", got.AppSecret)
+	require.True(t, got.OpenEnabled)
+	require.True(t, got.MPEnabled)
 	require.Equal(t, "mp", got.Mode)
 	require.Equal(t, "snsapi_base", got.Scopes)
 	require.Equal(t, "https://api.example.com/api/v1/auth/oauth/wechat/callback", got.RedirectURL)

backend/internal/service/settings_view.go

@@ -36,6 +36,8 @@ type SystemSettings struct {
 	WeChatConnectAppID               string
 	WeChatConnectAppSecret           string
 	WeChatConnectAppSecretConfigured bool
+	WeChatConnectOpenEnabled         bool
+	WeChatConnectMPEnabled           bool
 	WeChatConnectMode                string
 	WeChatConnectScopes              string
 	WeChatConnectRedirectURL         string
@@ -191,12 +193,30 @@ type WeChatConnectOAuthConfig struct {
 	Enabled             bool
 	AppID               string
 	AppSecret           string
+	OpenEnabled         bool
+	MPEnabled           bool
 	Mode                string
 	Scopes              string
 	RedirectURL         string
 	FrontendRedirectURL string
 }
 
+func (cfg WeChatConnectOAuthConfig) SupportsMode(mode string) bool {
+	switch normalizeWeChatConnectModeSetting(mode) {
+	case "mp":
+		return cfg.MPEnabled
+	default:
+		return cfg.OpenEnabled
+	}
+}
+
+func (cfg WeChatConnectOAuthConfig) ScopeForMode(mode string) string {
+	if normalizeWeChatConnectModeSetting(mode) == "mp" {
+		return normalizeWeChatConnectScopeSetting(cfg.Scopes, "mp")
+	}
+	return defaultWeChatConnectScopeForMode("open")
+}
+
 // StreamTimeoutSettings 流超时处理配置（仅控制超时后的处理方式，超时判定由网关配置控制）
 type StreamTimeoutSettings struct {
 	// Enabled 是否启用流超时处理

backend/migrations/118_wechat_dual_mode_and_auth_source_defaults.sql

@@ -0,0 +1,32 @@
+INSERT INTO settings (key, value)
+VALUES
+    (
+        'wechat_connect_open_enabled',
+        CASE
+            WHEN COALESCE((SELECT value FROM settings WHERE key = 'wechat_connect_enabled'), 'false') <> 'true' THEN 'false'
+            WHEN LOWER(TRIM(COALESCE((SELECT value FROM settings WHERE key = 'wechat_connect_mode'), 'open'))) = 'mp' THEN 'false'
+            ELSE 'true'
+        END
+    ),
+    (
+        'wechat_connect_mp_enabled',
+        CASE
+            WHEN COALESCE((SELECT value FROM settings WHERE key = 'wechat_connect_enabled'), 'false') <> 'true' THEN 'false'
+            WHEN LOWER(TRIM(COALESCE((SELECT value FROM settings WHERE key = 'wechat_connect_mode'), 'open'))) = 'mp' THEN 'true'
+            ELSE 'false'
+        END
+    ),
+    ('auth_source_default_email_grant_on_signup', 'false'),
+    ('auth_source_default_linuxdo_grant_on_signup', 'false'),
+    ('auth_source_default_oidc_grant_on_signup', 'false'),
+    ('auth_source_default_wechat_grant_on_signup', 'false')
+ON CONFLICT (key) DO NOTHING;
+
+UPDATE settings
+SET value = 'false'
+WHERE key IN (
+    'auth_source_default_email_grant_on_signup',
+    'auth_source_default_linuxdo_grant_on_signup',
+    'auth_source_default_oidc_grant_on_signup',
+    'auth_source_default_wechat_grant_on_signup'
+);

frontend/src/api/__tests__/settings.authSourceDefaults.spec.ts

@@ -1,13 +1,13 @@
-import { describe, expect, it } from 'vitest'
+import { describe, expect, it } from "vitest";
 
 import {
   appendAuthSourceDefaultsToUpdateRequest,
   buildAuthSourceDefaultsState,
   type UpdateSettingsRequest,
-} from '@/api/admin/settings'
+} from "@/api/admin/settings";
 
-describe('admin settings auth source defaults helpers', () => {
+describe("admin settings auth source defaults helpers", () => {
-  it('builds auth source defaults state from flat settings fields', () => {
+  it("builds auth source defaults state from flat settings fields", () => {
     const state = buildAuthSourceDefaultsState({
       auth_source_default_email_balance: 9.5,
       auth_source_default_email_concurrency: 3,
@@ -23,7 +23,7 @@ describe('admin settings auth source defaults helpers', () => {
       ],
       auth_source_default_linuxdo_grant_on_signup: true,
       auth_source_default_linuxdo_grant_on_first_bind: false,
-    })
+    });
 
     expect(state.email).toEqual({
       balance: 9.5,
@@ -31,34 +31,43 @@ describe('admin settings auth source defaults helpers', () => {
       subscriptions: [{ group_id: 1, validity_days: 30 }],
       grant_on_signup: false,
       grant_on_first_bind: true,
-    })
+    });
     expect(state.linuxdo).toEqual({
       balance: 6,
       concurrency: 8,
       subscriptions: [{ group_id: 2, validity_days: 60 }],
       grant_on_signup: true,
       grant_on_first_bind: false,
-    })
+    });
     expect(state.oidc).toEqual({
       balance: 0,
       concurrency: 5,
       subscriptions: [],
-      grant_on_signup: true,
+      grant_on_signup: false,
       grant_on_first_bind: false,
-    })
+    });
     expect(state.wechat).toEqual({
       balance: 0,
       concurrency: 5,
       subscriptions: [],
-      grant_on_signup: true,
+      grant_on_signup: false,
       grant_on_first_bind: false,
-    })
+    });
-  })
+  });
 
-  it('appends auth source defaults back onto update payload', () => {
+  it("defaults grant-on-signup to disabled when settings are missing", () => {
+    const state = buildAuthSourceDefaultsState({});
+
+    expect(state.email.grant_on_signup).toBe(false);
+    expect(state.linuxdo.grant_on_signup).toBe(false);
+    expect(state.oidc.grant_on_signup).toBe(false);
+    expect(state.wechat.grant_on_signup).toBe(false);
+  });
+
+  it("appends auth source defaults back onto update payload", () => {
     const payload: UpdateSettingsRequest = {
-      site_name: 'Sub2API',
+      site_name: "Sub2API",
-    }
+    };
 
     appendAuthSourceDefaultsToUpdateRequest(payload, {
       email: {
@@ -89,13 +98,15 @@ describe('admin settings auth source defaults helpers', () => {
         grant_on_signup: false,
         grant_on_first_bind: false,
       },
-    })
+    });
 
     expect(payload).toMatchObject({
-      site_name: 'Sub2API',
+      site_name: "Sub2API",
       auth_source_default_email_balance: 1.25,
       auth_source_default_email_concurrency: 2,
-      auth_source_default_email_subscriptions: [{ group_id: 3, validity_days: 7 }],
+      auth_source_default_email_subscriptions: [
+        { group_id: 3, validity_days: 7 },
+      ],
       auth_source_default_email_grant_on_signup: true,
       auth_source_default_email_grant_on_first_bind: false,
       auth_source_default_linuxdo_balance: 0,
@@ -105,7 +116,9 @@ describe('admin settings auth source defaults helpers', () => {
       auth_source_default_linuxdo_grant_on_first_bind: true,
       auth_source_default_oidc_balance: 4,
       auth_source_default_oidc_concurrency: 9,
-      auth_source_default_oidc_subscriptions: [{ group_id: 9, validity_days: 90 }],
+      auth_source_default_oidc_subscriptions: [
+        { group_id: 9, validity_days: 90 },
+      ],
       auth_source_default_oidc_grant_on_signup: true,
       auth_source_default_oidc_grant_on_first_bind: true,
       auth_source_default_wechat_balance: 2,
@@ -113,6 +126,6 @@ describe('admin settings auth source defaults helpers', () => {
       auth_source_default_wechat_subscriptions: [],
       auth_source_default_wechat_grant_on_signup: false,
       auth_source_default_wechat_grant_on_first_bind: false,
-    })
+    });
-  })
+  });
-})
+});

frontend/src/api/admin/settings.ts

@@ -167,7 +167,7 @@ export function buildAuthSourceDefaultsState(
           : [],
       ),
       grant_on_signup:
-        raw[`auth_source_default_${source}_grant_on_signup`] !== false,
+        raw[`auth_source_default_${source}_grant_on_signup`] === true,
       grant_on_first_bind:
         raw[`auth_source_default_${source}_grant_on_first_bind`] === true,
     };
@@ -239,6 +239,33 @@ export function defaultWeChatConnectScopesForMode(mode: unknown): string {
     : "snsapi_login";
 }
 
+export function resolveWeChatConnectModeCapabilities(
+  openEnabled: unknown,
+  mpEnabled: unknown,
+  legacyMode: unknown,
+): { openEnabled: boolean; mpEnabled: boolean } {
+  if (typeof openEnabled === "boolean" || typeof mpEnabled === "boolean") {
+    return {
+      openEnabled: openEnabled === true,
+      mpEnabled: mpEnabled === true,
+    };
+  }
+
+  return normalizeWeChatConnectMode(legacyMode) === "mp"
+    ? { openEnabled: false, mpEnabled: true }
+    : { openEnabled: true, mpEnabled: false };
+}
+
+export function deriveWeChatConnectStoredMode(
+  openEnabled: boolean,
+  mpEnabled: boolean,
+  legacyMode: unknown,
+): WeChatConnectMode {
+  if (mpEnabled) return "mp";
+  if (openEnabled) return "open";
+  return normalizeWeChatConnectMode(legacyMode);
+}
+
 /**
  * System settings interface
  */
@@ -315,6 +342,8 @@ export interface SystemSettings {
   wechat_connect_enabled: boolean;
   wechat_connect_app_id: string;
   wechat_connect_app_secret_configured: boolean;
+  wechat_connect_open_enabled?: boolean;
+  wechat_connect_mp_enabled?: boolean;
   wechat_connect_mode: string;
   wechat_connect_scopes: string;
   wechat_connect_redirect_url: string;
@@ -472,6 +501,8 @@ export interface UpdateSettingsRequest {
   wechat_connect_enabled?: boolean;
   wechat_connect_app_id?: string;
   wechat_connect_app_secret?: string;
+  wechat_connect_open_enabled?: boolean;
+  wechat_connect_mp_enabled?: boolean;
   wechat_connect_mode?: string;
   wechat_connect_scopes?: string;
   wechat_connect_redirect_url?: string;

frontend/src/views/admin/SettingsView.vue

@@ -1408,7 +1408,7 @@
                 v-if="form.wechat_connect_enabled"
                 class="space-y-6 border-t border-gray-100 pt-4 dark:border-dark-700"
               >
-                <div class="grid grid-cols-1 gap-6 lg:grid-cols-3">
+                <div class="grid grid-cols-1 gap-6 lg:grid-cols-2">
                   <div>
                     <label
                       class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
@@ -1463,68 +1463,73 @@
                       }}
                     </p>
                   </div>
+                </div>
 
-                  <div>
+                <div class="grid grid-cols-1 gap-6 lg:grid-cols-2">
+                  <div class="space-y-3">
                     <label
                       class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
                     >
                       {{ localText("模式", "Mode") }}
                     </label>
-                    <select
+                    <div
-                      data-testid="wechat-connect-mode"
+                      class="flex items-center justify-between rounded border border-gray-200 px-4 py-3 dark:border-dark-700"
-                      v-model="form.wechat_connect_mode"
-                      class="input font-mono text-sm"
-                      @change="syncWeChatConnectMode"
                     >
-                      <option value="open">
+                      <div>
-                        {{ localText("开放平台", "Open Platform") }}
+                        <div class="font-medium text-gray-900 dark:text-white">
-                      </option>
+                          {{
-                      <option value="mp">
+                            localText(
-                        {{
+                              "非微信环境使用开放平台",
-                          localText(
+                              "Use Open outside WeChat",
-                            "公众号 / 小程序",
+                            )
-                            "Official Account / Mini Program",
+                          }}
-                          )
+                        </div>
-                        }}
+                        <p
-                      </option>
+                          class="mt-0.5 text-xs text-gray-500 dark:text-gray-400"
-                    </select>
+                        >
-                    <p class="mt-1.5 text-xs text-gray-500 dark:text-gray-400">
+                          {{
-                      {{
+                            localText(
-                        localText(
+                              "浏览器不在微信内时，自动走开放平台扫码授权。",
-                          "open 对应微信开放平台，mp 对应公众号/小程序授权。",
+                              "Use Open Platform QR authorization outside the WeChat browser.",
-                          "open maps to WeChat Open Platform, mp maps to Official Account / Mini Program authorization.",
+                            )
-                        )
+                          }}
-                      }}
+                        </p>
-                    </p>
+                      </div>
-                  </div>
+                      <Toggle
-                </div>
+                        v-model="form.wechat_connect_open_enabled"
-
+                        data-testid="wechat-connect-open-enabled"
-                <div class="grid grid-cols-1 gap-6 lg:grid-cols-2">
+                        @update:model-value="syncWeChatConnectMode"
-                  <div>
+                      />
-                    <label
+                    </div>
-                      class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
+                    <div
+                      class="flex items-center justify-between rounded border border-gray-200 px-4 py-3 dark:border-dark-700"
                     >
-                      {{ localText("Scopes", "Scopes") }}
+                      <div>
-                    </label>
+                        <div class="font-medium text-gray-900 dark:text-white">
-                    <input
+                          {{
-                      data-testid="wechat-connect-scopes"
+                            localText(
-                      v-model="form.wechat_connect_scopes"
+                              "微信环境使用公众号",
-                      type="text"
+                              "Use MP inside WeChat",
-                      class="input font-mono text-sm"
+                            )
-                      :placeholder="
+                          }}
-                        form.wechat_connect_mode === 'mp'
+                        </div>
-                          ? 'snsapi_userinfo'
+                        <p
-                          : 'snsapi_login'
+                          class="mt-0.5 text-xs text-gray-500 dark:text-gray-400"
-                      "
+                        >
-                    />
+                          {{
-                    <p class="mt-1.5 text-xs text-gray-500 dark:text-gray-400">
+                            localText(
-                      {{
+                              "浏览器在微信内时，自动走公众号授权。",
-                        localText(
+                              "Use Official Account authorization inside the WeChat browser.",
-                          "留空时会按模式自动回填默认值。",
+                            )
-                          "Leave empty to use the default scope for the selected mode.",
+                          }}
-                        )
+                        </p>
-                      }}
+                      </div>
-                    </p>
+                      <Toggle
+                        v-model="form.wechat_connect_mp_enabled"
+                        data-testid="wechat-connect-mp-enabled"
+                        @update:model-value="syncWeChatConnectMode"
+                      />
+                    </div>
                   </div>
 
                   <div>
@@ -2246,83 +2251,77 @@
                 <Toggle v-model="form.force_email_on_third_party_signup" />
               </div>
 
-              <div class="grid grid-cols-1 gap-4 xl:grid-cols-2">
+              <div class="space-y-4">
                 <div
                   v-for="authSource in authSourceDefaultsMeta"
                   :key="authSource.source"
                   class="rounded-xl border border-gray-200 p-4 dark:border-dark-700"
                 >
-                  <div class="mb-4">
+                  <div class="flex items-center justify-between gap-4">
-                    <div class="font-medium text-gray-900 dark:text-white">
+                    <div>
-                      {{ authSource.title }}
+                      <div class="font-medium text-gray-900 dark:text-white">
+                        {{ authSource.title }}
+                      </div>
+                      <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
+                        {{ authSource.description }}
+                      </p>
                     </div>
-                    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
+                    <Toggle
-                      {{ authSource.description }}
+                      v-model="
+                        authSourceDefaults[authSource.source].grant_on_signup
+                      "
+                      :data-testid="`auth-source-${authSource.source}-enabled`"
+                    />
+                  </div>
+
+                  <div
+                    v-if="authSourceDefaults[authSource.source].grant_on_signup"
+                    :data-testid="`auth-source-${authSource.source}-panel`"
+                    class="mt-4 space-y-4 border-t border-gray-100 pt-4 dark:border-dark-700"
+                  >
+                    <p class="text-sm text-gray-500 dark:text-gray-400">
+                      {{
+                        localText(
+                          "以下默认值会在该来源注册新用户时发放；首次绑定时授权仅作用于已有账号绑定该来源。",
+                          "These defaults apply when a new user registers through this source. Grant on first bind only applies when an existing user binds this source.",
+                        )
+                      }}
                     </p>
-                  </div>
 
-                  <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
+                    <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
-                    <div>
-                      <label
-                        class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
-                      >
-                        {{ t("admin.settings.defaults.defaultBalance") }}
-                      </label>
-                      <input
-                        v-model.number="
-                          authSourceDefaults[authSource.source].balance
-                        "
-                        type="number"
-                        step="0.01"
-                        min="0"
-                        class="input"
-                        placeholder="0.00"
-                      />
-                    </div>
-                    <div>
-                      <label
-                        class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
-                      >
-                        {{ t("admin.settings.defaults.defaultConcurrency") }}
-                      </label>
-                      <input
-                        v-model.number="
-                          authSourceDefaults[authSource.source].concurrency
-                        "
-                        type="number"
-                        min="1"
-                        class="input"
-                        placeholder="5"
-                      />
-                    </div>
-                  </div>
-
-                  <div class="mt-4 grid grid-cols-1 gap-3 md:grid-cols-2">
-                    <div
-                      class="flex items-center justify-between rounded border border-gray-200 px-4 py-3 dark:border-dark-700"
-                    >
                       <div>
                         <label
-                          class="font-medium text-gray-900 dark:text-white"
+                          class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
                         >
-                          {{ localText("注册即授权", "Grant on signup") }}
+                          {{ t("admin.settings.defaults.defaultBalance") }}
                         </label>
-                        <p
+                        <input
-                          class="mt-0.5 text-xs text-gray-500 dark:text-gray-400"
+                          v-model.number="
-                        >
+                            authSourceDefaults[authSource.source].balance
-                          {{
+                          "
-                            localText(
+                          type="number"
-                              "来源首次注册成功后立即发放默认权益。",
+                          step="0.01"
-                              "Grant default entitlements immediately after signup.",
+                          min="0"
-                            )
+                          class="input"
-                          }}
+                          placeholder="0.00"
-                        </p>
+                        />
+                      </div>
+                      <div>
+                        <label
+                          class="mb-2 block text-sm font-medium text-gray-700 dark:text-gray-300"
+                        >
+                          {{ t("admin.settings.defaults.defaultConcurrency") }}
+                        </label>
+                        <input
+                          v-model.number="
+                            authSourceDefaults[authSource.source].concurrency
+                          "
+                          type="number"
+                          min="1"
+                          class="input"
+                          placeholder="5"
+                        />
                       </div>
-                      <Toggle
-                        v-model="
-                          authSourceDefaults[authSource.source].grant_on_signup
-                        "
-                      />
                     </div>
 
                     <div
@@ -2341,8 +2340,8 @@
                         >
                           {{
                             localText(
-                              "来源首次绑定到现有账号时发放默认权益。",
+                              "已有账号首次绑定该来源时发放默认权益。",
-                              "Grant default entitlements when the source is first bound to an existing user.",
+                              "Grant default entitlements when an existing user first binds this source.",
                             )
                           }}
                         </p>
@@ -2354,11 +2353,7 @@
                         "
                       />
                     </div>
-                  </div>
 
-                  <div
-                    class="mt-4 border-t border-gray-100 pt-4 dark:border-dark-700"
-                  >
                     <div class="mb-3 flex items-center justify-between">
                       <div>
                         <label
@@ -4710,12 +4705,13 @@ import { useI18n } from "vue-i18n";
 import { adminAPI } from "@/api";
 import {
   appendAuthSourceDefaultsToUpdateRequest,
-  defaultWeChatConnectScopesForMode,
   buildAuthSourceDefaultsState,
+  defaultWeChatConnectScopesForMode,
+  deriveWeChatConnectStoredMode,
   getPaymentVisibleMethodSourceOptions,
   normalizePaymentVisibleMethodSource,
   normalizeDefaultSubscriptionSettings,
-  normalizeWeChatConnectMode,
+  resolveWeChatConnectModeCapabilities,
 } from "@/api/admin/settings";
 import type {
   AuthSourceDefaultsState,
@@ -4859,11 +4855,16 @@ interface DefaultSubscriptionGroupOption {
   [key: string]: unknown;
 }
 
-type SettingsForm = SystemSettings & {
+type SettingsForm = Omit<
+  SystemSettings,
+  "wechat_connect_open_enabled" | "wechat_connect_mp_enabled"
+> & {
   smtp_password: string;
   turnstile_secret_key: string;
   linuxdo_connect_client_secret: string;
   wechat_connect_app_secret: string;
+  wechat_connect_open_enabled: boolean;
+  wechat_connect_mp_enabled: boolean;
   oidc_connect_client_secret: string;
   force_email_on_third_party_signup: boolean;
   payment_visible_method_alipay_source: string;
@@ -4958,6 +4959,8 @@ const form = reactive<SettingsForm>({
   wechat_connect_app_id: "",
   wechat_connect_app_secret: "",
   wechat_connect_app_secret_configured: false,
+  wechat_connect_open_enabled: false,
+  wechat_connect_mp_enabled: false,
   wechat_connect_mode: "open",
   wechat_connect_scopes: "snsapi_login",
   wechat_connect_redirect_url: "",
@@ -5452,14 +5455,21 @@ const wechatRedirectUrlSuggestion = computed(() => {
 });
 
 function syncWeChatConnectMode() {
-  form.wechat_connect_mode = normalizeWeChatConnectMode(
+  const capabilities = resolveWeChatConnectModeCapabilities(
+    form.wechat_connect_open_enabled,
+    form.wechat_connect_mp_enabled,
+    form.wechat_connect_mode,
+  );
+  form.wechat_connect_open_enabled = capabilities.openEnabled;
+  form.wechat_connect_mp_enabled = capabilities.mpEnabled;
+  form.wechat_connect_mode = deriveWeChatConnectStoredMode(
+    capabilities.openEnabled,
+    capabilities.mpEnabled,
+    form.wechat_connect_mode,
+  );
+  form.wechat_connect_scopes = defaultWeChatConnectScopesForMode(
     form.wechat_connect_mode,
   );
-  if (!form.wechat_connect_scopes.trim()) {
-    form.wechat_connect_scopes = defaultWeChatConnectScopesForMode(
-      form.wechat_connect_mode,
-    );
-  }
 }
 
 async function setAndCopyWeChatRedirectUrl() {
@@ -5608,16 +5618,21 @@ async function loadSettings() {
     form.turnstile_secret_key = "";
     form.linuxdo_connect_client_secret = "";
     form.wechat_connect_app_secret = "";
-    form.wechat_connect_mode = normalizeWeChatConnectMode(
+    const wechatCapabilities = resolveWeChatConnectModeCapabilities(
+      settings.wechat_connect_open_enabled,
+      settings.wechat_connect_mp_enabled,
       settings.wechat_connect_mode,
     );
-    const wechatConnectScopes =
+    form.wechat_connect_open_enabled = wechatCapabilities.openEnabled;
-      typeof settings.wechat_connect_scopes === "string"
+    form.wechat_connect_mp_enabled = wechatCapabilities.mpEnabled;
-        ? settings.wechat_connect_scopes.trim()
+    form.wechat_connect_mode = deriveWeChatConnectStoredMode(
-        : "";
+      wechatCapabilities.openEnabled,
-    form.wechat_connect_scopes =
+      wechatCapabilities.mpEnabled,
-      wechatConnectScopes ||
+      settings.wechat_connect_mode,
-      defaultWeChatConnectScopesForMode(form.wechat_connect_mode);
+    );
+    form.wechat_connect_scopes = defaultWeChatConnectScopesForMode(
+      form.wechat_connect_mode,
+    );
     form.oidc_connect_client_secret = "";
 
     // Load web search emulation config separately
@@ -5789,6 +5804,12 @@ async function saveSettings() {
     // Optional URL fields: auto-clear invalid values so they don't cause backend 400 errors
     if (!isValidHttpUrl(form.frontend_url)) form.frontend_url = "";
     if (!isValidHttpUrl(form.doc_url)) form.doc_url = "";
+    syncWeChatConnectMode();
+    const wechatStoredMode = deriveWeChatConnectStoredMode(
+      form.wechat_connect_open_enabled,
+      form.wechat_connect_mp_enabled,
+      form.wechat_connect_mode,
+    );
 
     const payload: UpdateSettingsRequest = {
       registration_enabled: form.registration_enabled,
@@ -5837,10 +5858,11 @@ async function saveSettings() {
       wechat_connect_enabled: form.wechat_connect_enabled,
       wechat_connect_app_id: form.wechat_connect_app_id,
       wechat_connect_app_secret: form.wechat_connect_app_secret || undefined,
-      wechat_connect_mode: normalizeWeChatConnectMode(form.wechat_connect_mode),
+      wechat_connect_open_enabled: form.wechat_connect_open_enabled,
+      wechat_connect_mp_enabled: form.wechat_connect_mp_enabled,
+      wechat_connect_mode: wechatStoredMode,
       wechat_connect_scopes:
-        form.wechat_connect_scopes.trim() ||
+        defaultWeChatConnectScopesForMode(wechatStoredMode),
-        defaultWeChatConnectScopesForMode(form.wechat_connect_mode),
       wechat_connect_redirect_url: form.wechat_connect_redirect_url,
       wechat_connect_frontend_redirect_url:
         form.wechat_connect_frontend_redirect_url,
@@ -5967,16 +5989,21 @@ async function saveSettings() {
     form.turnstile_secret_key = "";
     form.linuxdo_connect_client_secret = "";
     form.wechat_connect_app_secret = "";
-    form.wechat_connect_mode = normalizeWeChatConnectMode(
+    const updatedWechatCapabilities = resolveWeChatConnectModeCapabilities(
+      updated.wechat_connect_open_enabled,
+      updated.wechat_connect_mp_enabled,
       updated.wechat_connect_mode,
     );
-    const updatedWechatConnectScopes =
+    form.wechat_connect_open_enabled = updatedWechatCapabilities.openEnabled;
-      typeof updated.wechat_connect_scopes === "string"
+    form.wechat_connect_mp_enabled = updatedWechatCapabilities.mpEnabled;
-        ? updated.wechat_connect_scopes.trim()
+    form.wechat_connect_mode = deriveWeChatConnectStoredMode(
-        : "";
+      updatedWechatCapabilities.openEnabled,
-    form.wechat_connect_scopes =
+      updatedWechatCapabilities.mpEnabled,
-      updatedWechatConnectScopes ||
+      updated.wechat_connect_mode,
-      defaultWeChatConnectScopesForMode(form.wechat_connect_mode);
+    );
+    form.wechat_connect_scopes = defaultWeChatConnectScopesForMode(
+      form.wechat_connect_mode,
+    );
     form.oidc_connect_client_secret = "";
     // Save web search emulation config separately (errors handled internally)
     const wsOk = await saveWebSearchConfig();

frontend/src/views/admin/__tests__/SettingsView.spec.ts

@@ -111,9 +111,11 @@ const ToggleStub = defineComponent({
     },
   },
   emits: ["update:modelValue"],
-  setup(props, { emit }) {
+  inheritAttrs: false,
+  setup(props, { attrs, emit }) {
     return () =>
       h("input", {
+        ...attrs,
         class: "toggle-stub",
         type: "checkbox",
         checked: props.modelValue,
@@ -217,6 +219,8 @@ const baseSettingsResponse = {
   wechat_connect_enabled: true,
   wechat_connect_app_id: "wx-app-id-123",
   wechat_connect_app_secret_configured: true,
+  wechat_connect_open_enabled: false,
+  wechat_connect_mp_enabled: true,
   wechat_connect_mode: "mp",
   wechat_connect_scopes: "",
   wechat_connect_redirect_url:
@@ -334,6 +338,16 @@ async function openSecurityTab(wrapper: ReturnType<typeof mountView>) {
   await flushPromises();
 }
 
+async function openUsersTab(wrapper: ReturnType<typeof mountView>) {
+  const usersTabButton = wrapper
+    .findAll("button")
+    .find((node) => node.text().includes("admin.settings.tabs.users"));
+
+  expect(usersTabButton).toBeDefined();
+  await usersTabButton?.trigger("click");
+  await flushPromises();
+}
+
 describe("admin SettingsView payment visible method controls", () => {
   beforeEach(() => {
     getSettings.mockReset();
@@ -595,16 +609,19 @@ describe("admin SettingsView wechat connect controls", () => {
     ).toBe("wx-app-id-123");
     expect(
       (
-        wrapper.get('[data-testid="wechat-connect-mode"]')
+        wrapper.get('[data-testid="wechat-connect-open-enabled"]')
-          .element as HTMLSelectElement
+          .element as HTMLInputElement
-      ).value,
+      ).checked,
-    ).toBe("mp");
+    ).toBe(false);
     expect(
       (
-        wrapper.get('[data-testid="wechat-connect-scopes"]')
+        wrapper.get('[data-testid="wechat-connect-mp-enabled"]')
           .element as HTMLInputElement
-      ).value,
+      ).checked,
-    ).toBe("snsapi_userinfo");
+    ).toBe(true);
+    expect(wrapper.find('[data-testid="wechat-connect-scopes"]').exists()).toBe(
+      false,
+    );
     expect(
       wrapper
         .get('[data-testid="wechat-connect-app-secret"]')
@@ -630,10 +647,12 @@ describe("admin SettingsView wechat connect controls", () => {
     await wrapper
       .get('[data-testid="wechat-connect-app-secret"]')
       .setValue("new-secret");
-    await wrapper.get('[data-testid="wechat-connect-mode"]').setValue("open");
     await wrapper
-      .get('[data-testid="wechat-connect-scopes"]')
+      .get('[data-testid="wechat-connect-open-enabled"]')
-      .setValue("  snsapi_base  ");
+      .setValue(true);
+    await wrapper
+      .get('[data-testid="wechat-connect-mp-enabled"]')
+      .setValue(true);
     await wrapper
       .get('[data-testid="wechat-connect-redirect-url"]')
       .setValue("https://admin.example.com/api/v1/auth/oauth/wechat/callback");
@@ -649,8 +668,8 @@ describe("admin SettingsView wechat connect controls", () => {
         wechat_connect_enabled: true,
         wechat_connect_app_id: "wx-app-id-updated",
         wechat_connect_app_secret: "new-secret",
-        wechat_connect_mode: "open",
+        wechat_connect_open_enabled: true,
-        wechat_connect_scopes: "snsapi_base",
+        wechat_connect_mp_enabled: true,
         wechat_connect_redirect_url:
           "https://admin.example.com/api/v1/auth/oauth/wechat/callback",
         wechat_connect_frontend_redirect_url: "/auth/wechat/callback",
@@ -668,4 +687,31 @@ describe("admin SettingsView wechat connect controls", () => {
         .attributes("placeholder"),
     ).toContain("密钥已配置");
   });
+
+  it("collapses auth source defaults until the source is enabled", async () => {
+    const wrapper = mountView();
+
+    await flushPromises();
+    await openUsersTab(wrapper);
+
+    expect(
+      (
+        wrapper.get('[data-testid="auth-source-email-enabled"]')
+          .element as HTMLInputElement
+      ).checked,
+    ).toBe(false);
+    expect(
+      wrapper.find('[data-testid="auth-source-email-panel"]').exists(),
+    ).toBe(false);
+    expect(wrapper.text()).not.toContain("注册即授权");
+
+    await wrapper
+      .get('[data-testid="auth-source-email-enabled"]')
+      .setValue(true);
+
+    expect(
+      wrapper.find('[data-testid="auth-source-email-panel"]').exists(),
+    ).toBe(true);
+    expect(wrapper.text()).toContain("首次绑定时授权");
+  });
 });