fix(settings): restore wechat and payment config persistence

backend/internal/handler/admin/setting_handler.go

@@ -122,6 +122,13 @@ func (h *SettingHandler) GetSettings(c *gin.Context) {
 		LinuxDoConnectClientID:               settings.LinuxDoConnectClientID,
 		LinuxDoConnectClientSecretConfigured: settings.LinuxDoConnectClientSecretConfigured,
 		LinuxDoConnectRedirectURL:            settings.LinuxDoConnectRedirectURL,
+		WeChatConnectEnabled:                 settings.WeChatConnectEnabled,
+		WeChatConnectAppID:                   settings.WeChatConnectAppID,
+		WeChatConnectAppSecretConfigured:     settings.WeChatConnectAppSecretConfigured,
+		WeChatConnectMode:                    settings.WeChatConnectMode,
+		WeChatConnectScopes:                  settings.WeChatConnectScopes,
+		WeChatConnectRedirectURL:             settings.WeChatConnectRedirectURL,
+		WeChatConnectFrontendRedirectURL:     settings.WeChatConnectFrontendRedirectURL,
 		OIDCConnectEnabled:                   settings.OIDCConnectEnabled,
 		OIDCConnectProviderName:              settings.OIDCConnectProviderName,
 		OIDCConnectClientID:                  settings.OIDCConnectClientID,
@@ -246,6 +253,15 @@ type UpdateSettingsRequest struct {
 	LinuxDoConnectClientSecret string `json:"linuxdo_connect_client_secret"`
 	LinuxDoConnectRedirectURL  string `json:"linuxdo_connect_redirect_url"`
 
+	// WeChat Connect OAuth 登录
+	WeChatConnectEnabled             bool   `json:"wechat_connect_enabled"`
+	WeChatConnectAppID               string `json:"wechat_connect_app_id"`
+	WeChatConnectAppSecret           string `json:"wechat_connect_app_secret"`
+	WeChatConnectMode                string `json:"wechat_connect_mode"`
+	WeChatConnectScopes              string `json:"wechat_connect_scopes"`
+	WeChatConnectRedirectURL         string `json:"wechat_connect_redirect_url"`
+	WeChatConnectFrontendRedirectURL string `json:"wechat_connect_frontend_redirect_url"`
+
 	// Generic OIDC OAuth 登录
 	OIDCConnectEnabled              bool   `json:"oidc_connect_enabled"`
 	OIDCConnectProviderName         string `json:"oidc_connect_provider_name"`
@@ -509,6 +525,54 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		}
 	}
 
+	if req.WeChatConnectEnabled {
+		req.WeChatConnectAppID = strings.TrimSpace(req.WeChatConnectAppID)
+		req.WeChatConnectAppSecret = strings.TrimSpace(req.WeChatConnectAppSecret)
+		req.WeChatConnectMode = strings.ToLower(strings.TrimSpace(req.WeChatConnectMode))
+		req.WeChatConnectScopes = strings.TrimSpace(req.WeChatConnectScopes)
+		req.WeChatConnectRedirectURL = strings.TrimSpace(req.WeChatConnectRedirectURL)
+		req.WeChatConnectFrontendRedirectURL = strings.TrimSpace(req.WeChatConnectFrontendRedirectURL)
+
+		if req.WeChatConnectAppID == "" {
+			response.BadRequest(c, "WeChat App ID is required when enabled")
+			return
+		}
+		if req.WeChatConnectAppSecret == "" {
+			if previousSettings.WeChatConnectAppSecret == "" {
+				response.BadRequest(c, "WeChat App Secret is required when enabled")
+				return
+			}
+			req.WeChatConnectAppSecret = previousSettings.WeChatConnectAppSecret
+		}
+		if req.WeChatConnectMode == "" {
+			req.WeChatConnectMode = "open"
+		}
+		switch req.WeChatConnectMode {
+		case "open", "mp":
+		default:
+			response.BadRequest(c, "WeChat mode must be open or mp")
+			return
+		}
+		if req.WeChatConnectScopes == "" {
+			req.WeChatConnectScopes = service.DefaultWeChatConnectScopesForMode(req.WeChatConnectMode)
+		}
+		if req.WeChatConnectRedirectURL == "" {
+			response.BadRequest(c, "WeChat Redirect URL is required when enabled")
+			return
+		}
+		if err := config.ValidateAbsoluteHTTPURL(req.WeChatConnectRedirectURL); err != nil {
+			response.BadRequest(c, "WeChat Redirect URL must be an absolute http(s) URL")
+			return
+		}
+		if req.WeChatConnectFrontendRedirectURL == "" {
+			req.WeChatConnectFrontendRedirectURL = "/auth/wechat/callback"
+		}
+		if err := config.ValidateFrontendRedirectURL(req.WeChatConnectFrontendRedirectURL); err != nil {
+			response.BadRequest(c, "WeChat Frontend Redirect URL is invalid")
+			return
+		}
+	}
+
 	// Generic OIDC 参数验证
 	if req.OIDCConnectEnabled {
 		req.OIDCConnectProviderName = strings.TrimSpace(req.OIDCConnectProviderName)
@@ -857,6 +921,13 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		LinuxDoConnectClientID:           req.LinuxDoConnectClientID,
 		LinuxDoConnectClientSecret:       req.LinuxDoConnectClientSecret,
 		LinuxDoConnectRedirectURL:        req.LinuxDoConnectRedirectURL,
+		WeChatConnectEnabled:             req.WeChatConnectEnabled,
+		WeChatConnectAppID:               req.WeChatConnectAppID,
+		WeChatConnectAppSecret:           req.WeChatConnectAppSecret,
+		WeChatConnectMode:                req.WeChatConnectMode,
+		WeChatConnectScopes:              req.WeChatConnectScopes,
+		WeChatConnectRedirectURL:         req.WeChatConnectRedirectURL,
+		WeChatConnectFrontendRedirectURL: req.WeChatConnectFrontendRedirectURL,
 		OIDCConnectEnabled:               req.OIDCConnectEnabled,
 		OIDCConnectProviderName:          req.OIDCConnectProviderName,
 		OIDCConnectClientID:              req.OIDCConnectClientID,
@@ -1136,6 +1207,13 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		LinuxDoConnectClientID:               updatedSettings.LinuxDoConnectClientID,
 		LinuxDoConnectClientSecretConfigured: updatedSettings.LinuxDoConnectClientSecretConfigured,
 		LinuxDoConnectRedirectURL:            updatedSettings.LinuxDoConnectRedirectURL,
+		WeChatConnectEnabled:                 updatedSettings.WeChatConnectEnabled,
+		WeChatConnectAppID:                   updatedSettings.WeChatConnectAppID,
+		WeChatConnectAppSecretConfigured:     updatedSettings.WeChatConnectAppSecretConfigured,
+		WeChatConnectMode:                    updatedSettings.WeChatConnectMode,
+		WeChatConnectScopes:                  updatedSettings.WeChatConnectScopes,
+		WeChatConnectRedirectURL:             updatedSettings.WeChatConnectRedirectURL,
+		WeChatConnectFrontendRedirectURL:     updatedSettings.WeChatConnectFrontendRedirectURL,
 		OIDCConnectEnabled:                   updatedSettings.OIDCConnectEnabled,
 		OIDCConnectProviderName:              updatedSettings.OIDCConnectProviderName,
 		OIDCConnectClientID:                  updatedSettings.OIDCConnectClientID,
@@ -1329,6 +1407,27 @@ func diffSettings(before *service.SystemSettings, after *service.SystemSettings,
 	if before.LinuxDoConnectRedirectURL != after.LinuxDoConnectRedirectURL {
 		changed = append(changed, "linuxdo_connect_redirect_url")
 	}
+	if before.WeChatConnectEnabled != after.WeChatConnectEnabled {
+		changed = append(changed, "wechat_connect_enabled")
+	}
+	if before.WeChatConnectAppID != after.WeChatConnectAppID {
+		changed = append(changed, "wechat_connect_app_id")
+	}
+	if req.WeChatConnectAppSecret != "" {
+		changed = append(changed, "wechat_connect_app_secret")
+	}
+	if before.WeChatConnectMode != after.WeChatConnectMode {
+		changed = append(changed, "wechat_connect_mode")
+	}
+	if before.WeChatConnectScopes != after.WeChatConnectScopes {
+		changed = append(changed, "wechat_connect_scopes")
+	}
+	if before.WeChatConnectRedirectURL != after.WeChatConnectRedirectURL {
+		changed = append(changed, "wechat_connect_redirect_url")
+	}
+	if before.WeChatConnectFrontendRedirectURL != after.WeChatConnectFrontendRedirectURL {
+		changed = append(changed, "wechat_connect_frontend_redirect_url")
+	}
 	if before.OIDCConnectEnabled != after.OIDCConnectEnabled {
 		changed = append(changed, "oidc_connect_enabled")
 	}

backend/internal/handler/auth_wechat_oauth.go

@@ -8,7 +8,6 @@ import (
 	"io"
 	"net/http"
 	"net/url"
-	"os"
 	"strconv"
 	"strings"
 	"time"
@@ -149,7 +148,7 @@ func (h *AuthHandler) WeChatOAuthStart(c *gin.Context) {
 // WeChatOAuthCallback exchanges the code with WeChat, resolves openid/unionid,
 // and stores the result in the unified pending-auth flow.
 func (h *AuthHandler) WeChatOAuthCallback(c *gin.Context) {
-	frontendCallback := wechatOAuthFrontendCallback()
+	frontendCallback := h.wechatOAuthFrontendCallback(c.Request.Context())
 
 	if providerErr := strings.TrimSpace(c.Query("error")); providerErr != "" {
 		redirectOAuthError(c, frontendCallback, "provider_error", providerErr, c.Query("error_description"))
@@ -859,6 +858,10 @@ func (h *AuthHandler) getWeChatOAuthConfig(ctx context.Context, rawMode string,
 		return wechatOAuthConfig{}, err
 	}
 
+	if h == nil || h.settingSvc == nil {
+		return wechatOAuthConfig{}, infraerrors.ServiceUnavailable("CONFIG_NOT_READY", "wechat oauth settings service not ready")
+	}
+
 	apiBaseURL := ""
 	if h != nil && h.settingSvc != nil {
 		settings, err := h.settingSvc.GetAllSettings(ctx)
@@ -867,27 +870,28 @@ func (h *AuthHandler) getWeChatOAuthConfig(ctx context.Context, rawMode string,
 		}
 	}
 
+	effective, err := h.settingSvc.GetWeChatConnectOAuthConfig(ctx)
+	if err != nil {
+		return wechatOAuthConfig{}, err
+	}
+	if effective.Mode != mode {
+		return wechatOAuthConfig{}, infraerrors.NotFound("OAUTH_DISABLED", "wechat oauth is disabled")
+	}
+
 	cfg := wechatOAuthConfig{
 		mode:             mode,
-		redirectURI:      resolveWeChatOAuthAbsoluteURL(apiBaseURL, c, "/api/v1/auth/oauth/wechat/callback"),
-		frontendCallback: wechatOAuthFrontendCallback(),
+		appID:            strings.TrimSpace(effective.AppID),
+		appSecret:        strings.TrimSpace(effective.AppSecret),
+		redirectURI:      firstNonEmpty(strings.TrimSpace(effective.RedirectURL), resolveWeChatOAuthAbsoluteURL(apiBaseURL, c, "/api/v1/auth/oauth/wechat/callback")),
+		frontendCallback: firstNonEmpty(strings.TrimSpace(effective.FrontendRedirectURL), wechatOAuthDefaultFrontendCB),
+		scope:            firstNonEmpty(strings.TrimSpace(effective.Scopes), service.DefaultWeChatConnectScopesForMode(mode)),
 	}
 
 	switch mode {
 	case "mp":
-		cfg.appID = strings.TrimSpace(os.Getenv("WECHAT_OAUTH_MP_APP_ID"))
-		cfg.appSecret = strings.TrimSpace(os.Getenv("WECHAT_OAUTH_MP_APP_SECRET"))
 		cfg.authorizeURL = "https://open.weixin.qq.com/connect/oauth2/authorize"
-		cfg.scope = "snsapi_userinfo"
 	default:
-		cfg.appID = strings.TrimSpace(os.Getenv("WECHAT_OAUTH_OPEN_APP_ID"))
-		cfg.appSecret = strings.TrimSpace(os.Getenv("WECHAT_OAUTH_OPEN_APP_SECRET"))
 		cfg.authorizeURL = "https://open.weixin.qq.com/connect/qrconnect"
-		cfg.scope = "snsapi_login"
-	}
-
-	if cfg.appID == "" || cfg.appSecret == "" {
-		return wechatOAuthConfig{}, infraerrors.NotFound("OAUTH_DISABLED", "wechat oauth is disabled")
 	}
 	if strings.TrimSpace(cfg.redirectURI) == "" {
 		return wechatOAuthConfig{}, infraerrors.InternalServer("OAUTH_CONFIG_INVALID", "wechat oauth redirect url not configured")
@@ -896,8 +900,14 @@ func (h *AuthHandler) getWeChatOAuthConfig(ctx context.Context, rawMode string,
 	return cfg, nil
 }
 
-func wechatOAuthFrontendCallback() string {
-	return firstNonEmpty(strings.TrimSpace(os.Getenv("WECHAT_OAUTH_FRONTEND_REDIRECT_URL")), wechatOAuthDefaultFrontendCB)
+func (h *AuthHandler) wechatOAuthFrontendCallback(ctx context.Context) string {
+	if h != nil && h.settingSvc != nil {
+		cfg, err := h.settingSvc.GetWeChatConnectOAuthConfig(ctx)
+		if err == nil && strings.TrimSpace(cfg.FrontendRedirectURL) != "" {
+			return strings.TrimSpace(cfg.FrontendRedirectURL)
+		}
+	}
+	return wechatOAuthDefaultFrontendCB
 }
 
 func resolveWeChatOAuthMode(rawMode string, c *gin.Context) (string, error) {

backend/internal/handler/auth_wechat_oauth_test.go

@@ -33,16 +33,22 @@ import (
 )
 
 func TestWeChatOAuthStartRedirectsAndSetsPendingCookies(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_ID", "wx-open-app")
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", "wx-open-secret")
-
 	gin.SetMode(gin.TestMode)
+	handler, client := newWeChatOAuthTestHandlerWithSettings(t, false, map[string]string{
+		service.SettingKeyWeChatConnectEnabled:             "true",
+		service.SettingKeyWeChatConnectAppID:               "wx-open-app",
+		service.SettingKeyWeChatConnectAppSecret:           "wx-open-secret",
+		service.SettingKeyWeChatConnectMode:                "open",
+		service.SettingKeyWeChatConnectScopes:              "snsapi_login",
+		service.SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
+		service.SettingKeyWeChatConnectFrontendRedirectURL: "/auth/wechat/callback",
+	})
+	defer client.Close()
 	recorder := httptest.NewRecorder()
 	c, _ := gin.CreateTestContext(recorder)
 	c.Request = httptest.NewRequest(http.MethodGet, "/api/v1/auth/oauth/wechat/start?mode=open&redirect=/billing", nil)
 	c.Request.Host = "api.example.com"
 
-	handler := &AuthHandler{}
 	handler.WeChatOAuthStart(c)
 
 	require.Equal(t, http.StatusFound, recorder.Code)
@@ -60,10 +66,6 @@ func TestWeChatOAuthStartRedirectsAndSetsPendingCookies(t *testing.T) {
 }
 
 func TestWeChatOAuthCallbackCreatesPendingSessionForUnifiedFlow(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_ID", "wx-open-app")
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", "wx-open-secret")
-	t.Setenv("WECHAT_OAUTH_FRONTEND_REDIRECT_URL", "/auth/wechat/callback")
-
 	originalAccessTokenURL := wechatOAuthAccessTokenURL
 	originalUserInfoURL := wechatOAuthUserInfoURL
 	t.Cleanup(func() {
@@ -124,10 +126,6 @@ func TestWeChatOAuthCallbackCreatesPendingSessionForUnifiedFlow(t *testing.T) {
 }
 
 func TestWeChatOAuthCallbackRejectsMissingUnionID(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_ID", "wx-open-app")
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", "wx-open-secret")
-	t.Setenv("WECHAT_OAUTH_FRONTEND_REDIRECT_URL", "https://app.example.com/auth/wechat/callback")
-
 	originalAccessTokenURL := wechatOAuthAccessTokenURL
 	originalUserInfoURL := wechatOAuthUserInfoURL
 	t.Cleanup(func() {
@@ -151,7 +149,7 @@ func TestWeChatOAuthCallbackRejectsMissingUnionID(t *testing.T) {
 	wechatOAuthAccessTokenURL = upstream.URL + "/sns/oauth2/access_token"
 	wechatOAuthUserInfoURL = upstream.URL + "/sns/userinfo"
 
-	handler, client := newWeChatOAuthTestHandler(t, false)
+	handler, client := newWeChatOAuthTestHandlerWithSettings(t, false, wechatOAuthTestSettings("open", "wx-open-app", "wx-open-secret", "https://app.example.com/auth/wechat/callback"))
 	defer client.Close()
 
 	recorder := httptest.NewRecorder()
@@ -177,9 +175,6 @@ func TestWeChatOAuthCallbackRejectsMissingUnionID(t *testing.T) {
 }
 
 func TestWeChatPaymentOAuthCallbackRedirectsWithOpaqueResumeToken(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_MP_APP_ID", "wx-mp-app")
-	t.Setenv("WECHAT_OAUTH_MP_APP_SECRET", "wx-mp-secret")
-
 	originalAccessTokenURL := wechatOAuthAccessTokenURL
 	t.Cleanup(func() {
 		wechatOAuthAccessTokenURL = originalAccessTokenURL
@@ -196,7 +191,7 @@ func TestWeChatPaymentOAuthCallbackRedirectsWithOpaqueResumeToken(t *testing.T)
 	defer upstream.Close()
 	wechatOAuthAccessTokenURL = upstream.URL + "/sns/oauth2/access_token"
 
-	handler, client := newWeChatOAuthTestHandler(t, false)
+	handler, client := newWeChatOAuthTestHandlerWithSettings(t, false, wechatOAuthTestSettings("mp", "wx-mp-app", "wx-mp-secret", "/auth/wechat/callback"))
 	defer client.Close()
 	handler.cfg.Totp.EncryptionKey = "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
 
@@ -240,7 +235,6 @@ func TestWeChatOAuthCallbackBindUsesUnionCanonicalIdentityAcrossChannels(t *test
 	testCases := []struct {
 		name      string
 		mode      string
-		appIDEnv  string
 		appID     string
 		appSecret string
 		openID    string
@@ -248,7 +242,6 @@ func TestWeChatOAuthCallbackBindUsesUnionCanonicalIdentityAcrossChannels(t *test
 		{
 			name:      "open",
 			mode:      "open",
-			appIDEnv:  "WECHAT_OAUTH_OPEN_APP_ID",
 			appID:     "wx-open-app",
 			appSecret: "wx-open-secret",
 			openID:    "openid-open-123",
@@ -256,7 +249,6 @@ func TestWeChatOAuthCallbackBindUsesUnionCanonicalIdentityAcrossChannels(t *test
 		{
 			name:      "mp",
 			mode:      "mp",
-			appIDEnv:  "WECHAT_OAUTH_MP_APP_ID",
 			appID:     "wx-mp-app",
 			appSecret: "wx-mp-secret",
 			openID:    "openid-mp-123",
@@ -265,15 +257,6 @@ func TestWeChatOAuthCallbackBindUsesUnionCanonicalIdentityAcrossChannels(t *test
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
-			t.Setenv(tc.appIDEnv, tc.appID)
-			switch tc.mode {
-			case "open":
-				t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", tc.appSecret)
-			case "mp":
-				t.Setenv("WECHAT_OAUTH_MP_APP_SECRET", tc.appSecret)
-			}
-			t.Setenv("WECHAT_OAUTH_FRONTEND_REDIRECT_URL", "/auth/wechat/callback")
-
 			originalAccessTokenURL := wechatOAuthAccessTokenURL
 			originalUserInfoURL := wechatOAuthUserInfoURL
 			t.Cleanup(func() {
@@ -297,7 +280,7 @@ func TestWeChatOAuthCallbackBindUsesUnionCanonicalIdentityAcrossChannels(t *test
 			wechatOAuthAccessTokenURL = upstream.URL + "/sns/oauth2/access_token"
 			wechatOAuthUserInfoURL = upstream.URL + "/sns/userinfo"
 
-			handler, client := newWeChatOAuthTestHandler(t, false)
+			handler, client := newWeChatOAuthTestHandlerWithSettings(t, false, wechatOAuthTestSettings(tc.mode, tc.appID, tc.appSecret, "/auth/wechat/callback"))
 			defer client.Close()
 
 			currentUser, err := client.User.Create().
@@ -354,10 +337,6 @@ func TestWeChatOAuthCallbackBindUsesUnionCanonicalIdentityAcrossChannels(t *test
 }
 
 func TestWeChatOAuthCallbackBindRejectsCanonicalOwnershipConflict(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_ID", "wx-open-app")
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", "wx-open-secret")
-	t.Setenv("WECHAT_OAUTH_FRONTEND_REDIRECT_URL", "/auth/wechat/callback")
-
 	originalAccessTokenURL := wechatOAuthAccessTokenURL
 	originalUserInfoURL := wechatOAuthUserInfoURL
 	t.Cleanup(func() {
@@ -436,10 +415,6 @@ func TestWeChatOAuthCallbackBindRejectsCanonicalOwnershipConflict(t *testing.T)
 }
 
 func TestWeChatOAuthCallbackBindRejectsChannelOwnershipConflict(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_ID", "wx-open-app")
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", "wx-open-secret")
-	t.Setenv("WECHAT_OAUTH_FRONTEND_REDIRECT_URL", "/auth/wechat/callback")
-
 	originalAccessTokenURL := wechatOAuthAccessTokenURL
 	originalUserInfoURL := wechatOAuthUserInfoURL
 	t.Cleanup(func() {
@@ -529,10 +504,6 @@ func TestWeChatOAuthCallbackBindRejectsChannelOwnershipConflict(t *testing.T) {
 }
 
 func TestWeChatOAuthCallbackBindRejectsLegacyProviderKeyOwnershipConflict(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_ID", "wx-open-app")
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", "wx-open-secret")
-	t.Setenv("WECHAT_OAUTH_FRONTEND_REDIRECT_URL", "/auth/wechat/callback")
-
 	originalAccessTokenURL := wechatOAuthAccessTokenURL
 	originalUserInfoURL := wechatOAuthUserInfoURL
 	t.Cleanup(func() {
@@ -611,10 +582,6 @@ func TestWeChatOAuthCallbackBindRejectsLegacyProviderKeyOwnershipConflict(t *tes
 }
 
 func TestCompleteWeChatOAuthRegistrationAfterInvitationPendingSession(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_ID", "wx-open-app")
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", "wx-open-secret")
-	t.Setenv("WECHAT_OAUTH_FRONTEND_REDIRECT_URL", "/auth/wechat/callback")
-
 	originalAccessTokenURL := wechatOAuthAccessTokenURL
 	originalUserInfoURL := wechatOAuthUserInfoURL
 	t.Cleanup(func() {
@@ -737,10 +704,6 @@ func TestCompleteWeChatOAuthRegistrationAfterInvitationPendingSession(t *testing
 }
 
 func TestWeChatOAuthCallbackRepairsLegacyOpenIDOnlyIdentity(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_ID", "wx-open-app")
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", "wx-open-secret")
-	t.Setenv("WECHAT_OAUTH_FRONTEND_REDIRECT_URL", "/auth/wechat/callback")
-
 	originalAccessTokenURL := wechatOAuthAccessTokenURL
 	originalUserInfoURL := wechatOAuthUserInfoURL
 	t.Cleanup(func() {
@@ -900,10 +863,6 @@ func TestCompleteWeChatOAuthRegistrationRejectsAdoptExistingUserSession(t *testi
 }
 
 func TestWeChatOAuthCallbackRepairsLegacyProviderKeyCanonicalIdentity(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_ID", "wx-open-app")
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", "wx-open-secret")
-	t.Setenv("WECHAT_OAUTH_FRONTEND_REDIRECT_URL", "/auth/wechat/callback")
-
 	originalAccessTokenURL := wechatOAuthAccessTokenURL
 	originalUserInfoURL := wechatOAuthUserInfoURL
 	t.Cleanup(func() {
@@ -1010,6 +969,22 @@ func TestWeChatOAuthCallbackRepairsLegacyProviderKeyCanonicalIdentity(t *testing
 }
 
 func newWeChatOAuthTestHandler(t *testing.T, invitationEnabled bool) (*AuthHandler, *dbent.Client) {
+	return newWeChatOAuthTestHandlerWithSettings(t, invitationEnabled, nil)
+}
+
+func wechatOAuthTestSettings(mode, appID, secret, frontendRedirect string) map[string]string {
+	return map[string]string{
+		service.SettingKeyWeChatConnectEnabled:             "true",
+		service.SettingKeyWeChatConnectAppID:               appID,
+		service.SettingKeyWeChatConnectAppSecret:           secret,
+		service.SettingKeyWeChatConnectMode:                mode,
+		service.SettingKeyWeChatConnectScopes:              service.DefaultWeChatConnectScopesForMode(mode),
+		service.SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
+		service.SettingKeyWeChatConnectFrontendRedirectURL: frontendRedirect,
+	}
+}
+
+func newWeChatOAuthTestHandlerWithSettings(t *testing.T, invitationEnabled bool, extraSettings map[string]string) (*AuthHandler, *dbent.Client) {
 	t.Helper()
 
 	db, err := sql.Open("sqlite", "file:auth_wechat_oauth?mode=memory&cache=shared")
@@ -1036,12 +1011,17 @@ func newWeChatOAuthTestHandler(t *testing.T, invitationEnabled bool) (*AuthHandl
 			UserConcurrency: 1,
 		},
 	}
-	settingSvc := service.NewSettingService(&wechatOAuthSettingRepoStub{
-		values: map[string]string{
+	values := map[string]string{
 		service.SettingKeyRegistrationEnabled:   "true",
 		service.SettingKeyInvitationCodeEnabled: boolSettingValue(invitationEnabled),
-		},
-	}, cfg)
+	}
+	for key, value := range wechatOAuthTestSettings("open", "wx-open-app", "wx-open-secret", "/auth/wechat/callback") {
+		values[key] = value
+	}
+	for key, value := range extraSettings {
+		values[key] = value
+	}
+	settingSvc := service.NewSettingService(&wechatOAuthSettingRepoStub{values: values}, cfg)
 
 	authSvc := service.NewAuthService(
 		client,

backend/internal/handler/dto/settings.go

@@ -51,6 +51,14 @@ type SystemSettings struct {
 	LinuxDoConnectClientSecretConfigured bool   `json:"linuxdo_connect_client_secret_configured"`
 	LinuxDoConnectRedirectURL            string `json:"linuxdo_connect_redirect_url"`
 
+	WeChatConnectEnabled             bool   `json:"wechat_connect_enabled"`
+	WeChatConnectAppID               string `json:"wechat_connect_app_id"`
+	WeChatConnectAppSecretConfigured bool   `json:"wechat_connect_app_secret_configured"`
+	WeChatConnectMode                string `json:"wechat_connect_mode"`
+	WeChatConnectScopes              string `json:"wechat_connect_scopes"`
+	WeChatConnectRedirectURL         string `json:"wechat_connect_redirect_url"`
+	WeChatConnectFrontendRedirectURL string `json:"wechat_connect_frontend_redirect_url"`
+
 	OIDCConnectEnabled                bool   `json:"oidc_connect_enabled"`
 	OIDCConnectProviderName           string `json:"oidc_connect_provider_name"`
 	OIDCConnectClientID               string `json:"oidc_connect_client_id"`

backend/internal/handler/setting_handler_public_test.go

@@ -84,12 +84,17 @@ func TestSettingHandler_GetPublicSettings_ExposesForceEmailOnThirdPartySignup(t
 
 func TestSettingHandler_GetPublicSettings_ExposesWeChatOAuthModeCapabilities(t *testing.T) {
 	gin.SetMode(gin.TestMode)
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_ID", "wx-open-app")
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", "wx-open-secret")
-	t.Setenv("WECHAT_OAUTH_MP_APP_ID", "")
-	t.Setenv("WECHAT_OAUTH_MP_APP_SECRET", "")
-
-	h := NewSettingHandler(service.NewSettingService(&settingHandlerPublicRepoStub{}, &config.Config{}), "test-version")
+	h := NewSettingHandler(service.NewSettingService(&settingHandlerPublicRepoStub{
+		values: map[string]string{
+			service.SettingKeyWeChatConnectEnabled:             "true",
+			service.SettingKeyWeChatConnectAppID:               "wx-mp-app",
+			service.SettingKeyWeChatConnectAppSecret:           "wx-mp-secret",
+			service.SettingKeyWeChatConnectMode:                "mp",
+			service.SettingKeyWeChatConnectScopes:              "snsapi_base",
+			service.SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
+			service.SettingKeyWeChatConnectFrontendRedirectURL: "/auth/wechat/callback",
+		},
+	}, &config.Config{}), "test-version")
 
 	recorder := httptest.NewRecorder()
 	c, _ := gin.CreateTestContext(recorder)
@@ -110,6 +115,6 @@ 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.True(t, resp.Data.WeChatOAuthOpenEnabled)
-	require.False(t, resp.Data.WeChatOAuthMPEnabled)
+	require.False(t, resp.Data.WeChatOAuthOpenEnabled)
+	require.True(t, resp.Data.WeChatOAuthMPEnabled)
 }

backend/internal/service/domain_constants.go

@@ -111,6 +111,15 @@ const (
 	SettingKeyLinuxDoConnectClientSecret = "linuxdo_connect_client_secret"
 	SettingKeyLinuxDoConnectRedirectURL  = "linuxdo_connect_redirect_url"
 
+	// WeChat Connect OAuth 登录设置
+	SettingKeyWeChatConnectEnabled             = "wechat_connect_enabled"
+	SettingKeyWeChatConnectAppID               = "wechat_connect_app_id"
+	SettingKeyWeChatConnectAppSecret           = "wechat_connect_app_secret"
+	SettingKeyWeChatConnectMode                = "wechat_connect_mode"
+	SettingKeyWeChatConnectScopes              = "wechat_connect_scopes"
+	SettingKeyWeChatConnectRedirectURL         = "wechat_connect_redirect_url"
+	SettingKeyWeChatConnectFrontendRedirectURL = "wechat_connect_frontend_redirect_url"
+
 	// Generic OIDC OAuth 登录设置
 	SettingKeyOIDCConnectEnabled              = "oidc_connect_enabled"
 	SettingKeyOIDCConnectProviderName         = "oidc_connect_provider_name"

backend/internal/service/payment_config_service.go

@@ -93,6 +93,11 @@ type UpdatePaymentConfigRequest struct {
 	CancelRateLimitWindow  *int    `json:"cancel_rate_limit_window"`
 	CancelRateLimitUnit    *string `json:"cancel_rate_limit_unit"`
 	CancelRateLimitMode    *string `json:"cancel_rate_limit_window_mode"`
+
+	VisibleMethodAlipaySource  *string `json:"payment_visible_method_alipay_source"`
+	VisibleMethodWxpaySource   *string `json:"payment_visible_method_wxpay_source"`
+	VisibleMethodAlipayEnabled *bool   `json:"payment_visible_method_alipay_enabled"`
+	VisibleMethodWxpayEnabled  *bool   `json:"payment_visible_method_wxpay_enabled"`
 }
 
 // MethodLimits holds per-payment-type limits.
@@ -319,6 +324,10 @@ func (s *PaymentConfigService) UpdatePaymentConfig(ctx context.Context, req Upda
 		SettingCancelWindowSize:    formatPositiveInt(req.CancelRateLimitWindow),
 		SettingCancelWindowUnit:    derefStr(req.CancelRateLimitUnit),
 		SettingCancelWindowMode:    derefStr(req.CancelRateLimitMode),
+		SettingPaymentVisibleMethodAlipaySource:  derefStr(req.VisibleMethodAlipaySource),
+		SettingPaymentVisibleMethodWxpaySource:   derefStr(req.VisibleMethodWxpaySource),
+		SettingPaymentVisibleMethodAlipayEnabled: formatBoolOrEmpty(req.VisibleMethodAlipayEnabled),
+		SettingPaymentVisibleMethodWxpayEnabled:  formatBoolOrEmpty(req.VisibleMethodWxpayEnabled),
 	}
 	if req.EnabledTypes != nil {
 		m[SettingEnabledPaymentTypes] = strings.Join(req.EnabledTypes, ",")

backend/internal/service/payment_config_service_test.go

@@ -367,6 +367,7 @@ func newPaymentConfigServiceTestClient(t *testing.T) *dbent.Client {
 
 type paymentConfigSettingRepoStub struct {
 	values  map[string]string
+	updates map[string]string
 }
 
 func (s *paymentConfigSettingRepoStub) Get(context.Context, string) (*Setting, error) {
@@ -383,10 +384,52 @@ func (s *paymentConfigSettingRepoStub) GetMultiple(_ context.Context, keys []str
 	}
 	return out, nil
 }
-func (s *paymentConfigSettingRepoStub) SetMultiple(context.Context, map[string]string) error {
+func (s *paymentConfigSettingRepoStub) SetMultiple(_ context.Context, values map[string]string) error {
+	s.updates = make(map[string]string, len(values))
+	for key, value := range values {
+		s.updates[key] = value
+		if s.values == nil {
+			s.values = map[string]string{}
+		}
+		s.values[key] = value
+	}
 	return nil
 }
 func (s *paymentConfigSettingRepoStub) GetAll(context.Context) (map[string]string, error) {
 	return s.values, nil
 }
 func (s *paymentConfigSettingRepoStub) Delete(context.Context, string) error { return nil }
+
+func TestUpdatePaymentConfig_PersistsVisibleMethodRouting(t *testing.T) {
+	repo := &paymentConfigSettingRepoStub{values: map[string]string{}}
+	svc := &PaymentConfigService{settingRepo: repo}
+
+	alipayEnabled := true
+	wxpayEnabled := false
+	err := svc.UpdatePaymentConfig(context.Background(), UpdatePaymentConfigRequest{
+		VisibleMethodAlipayEnabled: &alipayEnabled,
+		VisibleMethodAlipaySource:  paymentConfigStrPtr(VisibleMethodSourceEasyPayAlipay),
+		VisibleMethodWxpayEnabled:  &wxpayEnabled,
+		VisibleMethodWxpaySource:   paymentConfigStrPtr(VisibleMethodSourceOfficialWechat),
+	})
+	if err != nil {
+		t.Fatalf("UpdatePaymentConfig returned error: %v", err)
+	}
+
+	if repo.values[SettingPaymentVisibleMethodAlipayEnabled] != "true" {
+		t.Fatalf("alipay enabled = %q, want true", repo.values[SettingPaymentVisibleMethodAlipayEnabled])
+	}
+	if repo.values[SettingPaymentVisibleMethodAlipaySource] != VisibleMethodSourceEasyPayAlipay {
+		t.Fatalf("alipay source = %q, want %q", repo.values[SettingPaymentVisibleMethodAlipaySource], VisibleMethodSourceEasyPayAlipay)
+	}
+	if repo.values[SettingPaymentVisibleMethodWxpayEnabled] != "false" {
+		t.Fatalf("wxpay enabled = %q, want false", repo.values[SettingPaymentVisibleMethodWxpayEnabled])
+	}
+	if repo.values[SettingPaymentVisibleMethodWxpaySource] != VisibleMethodSourceOfficialWechat {
+		t.Fatalf("wxpay source = %q, want %q", repo.values[SettingPaymentVisibleMethodWxpaySource], VisibleMethodSourceOfficialWechat)
+	}
+}
+
+func paymentConfigStrPtr(value string) *string {
+	return &value
+}

backend/internal/service/payment_order.go

@@ -6,7 +6,6 @@ import (
 	"log/slog"
 	"math"
 	"net/url"
-	"os"
 	"strconv"
 	"strings"
 	"time"
@@ -512,16 +511,21 @@ func requiresWeChatJSAPICompatibleSelection(req CreateOrderRequest, sel *payment
 	return req.IsWeChatBrowser || strings.TrimSpace(req.OpenID) != ""
 }
 
-func (s *PaymentService) getWeChatPaymentOAuthCredential(context.Context) (string, string, error) {
-	appID := strings.TrimSpace(os.Getenv("WECHAT_OAUTH_MP_APP_ID"))
-	appSecret := strings.TrimSpace(os.Getenv("WECHAT_OAUTH_MP_APP_SECRET"))
-	if appID == "" || appSecret == "" {
+func (s *PaymentService) getWeChatPaymentOAuthCredential(ctx context.Context) (string, string, error) {
+	if s == nil || s.configService == nil || s.configService.settingRepo == nil {
+		return "", "", infraerrors.ServiceUnavailable(
+			"WECHAT_PAYMENT_MP_NOT_CONFIGURED",
+			"wechat in-app payment requires a complete WeChat MP OAuth credential",
+		)
+	}
+	cfg, err := (&SettingService{settingRepo: s.configService.settingRepo}).GetWeChatConnectOAuthConfig(ctx)
+	if err != nil || cfg.Mode != "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",
 		)
 	}
-	return appID, appSecret, nil
+	return strings.TrimSpace(cfg.AppID), strings.TrimSpace(cfg.AppSecret), nil
 }
 
 func classifyCreatePaymentError(req CreateOrderRequest, providerKey string, err error) error {

backend/internal/service/payment_order_jsapi_test.go

@@ -64,6 +64,13 @@ func TestSelectCreateOrderInstancePrefersJSAPICompatibleWxpayInstance(t *testing
 		settingRepo: &paymentConfigSettingRepoStub{values: map[string]string{
 			SettingPaymentVisibleMethodWxpayEnabled:    "true",
 			SettingPaymentVisibleMethodWxpaySource:     VisibleMethodSourceOfficialWechat,
+			SettingKeyWeChatConnectEnabled:             "true",
+			SettingKeyWeChatConnectAppID:               "wx-mp-app",
+			SettingKeyWeChatConnectAppSecret:           "wechat-secret",
+			SettingKeyWeChatConnectMode:                "mp",
+			SettingKeyWeChatConnectScopes:              "snsapi_base",
+			SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
+			SettingKeyWeChatConnectFrontendRedirectURL: "/auth/wechat/callback",
 		}},
 		encryptionKey: []byte(jsapiTestEncryptionKey),
 	}
@@ -77,9 +84,6 @@ func TestSelectCreateOrderInstancePrefersJSAPICompatibleWxpayInstance(t *testing
 		configService: configService,
 	}
 
-	t.Setenv("WECHAT_OAUTH_MP_APP_ID", "wx-mp-app")
-	t.Setenv("WECHAT_OAUTH_MP_APP_SECRET", "wechat-secret")
-
 	sel, err := svc.selectCreateOrderInstance(ctx, CreateOrderRequest{
 		PaymentType:     payment.TypeWxpay,
 		OpenID:          "openid-123",

backend/internal/service/payment_order_result_test.go

@@ -91,10 +91,15 @@ func TestBuildCreateOrderResponseCopiesJSAPIPayload(t *testing.T) {
 }
 
 func TestMaybeBuildWeChatOAuthRequiredResponse(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_MP_APP_ID", "wx123456")
-	t.Setenv("WECHAT_OAUTH_MP_APP_SECRET", "wechat-secret")
-
-	svc := &PaymentService{}
+	svc := newWeChatPaymentOAuthTestService(map[string]string{
+		SettingKeyWeChatConnectEnabled:             "true",
+		SettingKeyWeChatConnectAppID:               "wx123456",
+		SettingKeyWeChatConnectAppSecret:           "wechat-secret",
+		SettingKeyWeChatConnectMode:                "mp",
+		SettingKeyWeChatConnectScopes:              "snsapi_base",
+		SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
+		SettingKeyWeChatConnectFrontendRedirectURL: "/auth/wechat/callback",
+	})
 
 	resp, err := svc.maybeBuildWeChatOAuthRequiredResponse(context.Background(), CreateOrderRequest{
 		Amount:          12.5,
@@ -132,7 +137,7 @@ func TestMaybeBuildWeChatOAuthRequiredResponse(t *testing.T) {
 func TestMaybeBuildWeChatOAuthRequiredResponseRequiresMPConfigInWeChat(t *testing.T) {
 	t.Parallel()
 
-	svc := &PaymentService{}
+	svc := newWeChatPaymentOAuthTestService(nil)
 
 	resp, err := svc.maybeBuildWeChatOAuthRequiredResponse(context.Background(), CreateOrderRequest{
 		Amount:          12.5,
@@ -155,10 +160,15 @@ func TestMaybeBuildWeChatOAuthRequiredResponseRequiresMPConfigInWeChat(t *testin
 }
 
 func TestMaybeBuildWeChatOAuthRequiredResponseForSelectionSkipsEasyPayProvider(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_MP_APP_ID", "wx123456")
-	t.Setenv("WECHAT_OAUTH_MP_APP_SECRET", "wechat-secret")
-
-	svc := &PaymentService{}
+	svc := newWeChatPaymentOAuthTestService(map[string]string{
+		SettingKeyWeChatConnectEnabled:             "true",
+		SettingKeyWeChatConnectAppID:               "wx123456",
+		SettingKeyWeChatConnectAppSecret:           "wechat-secret",
+		SettingKeyWeChatConnectMode:                "mp",
+		SettingKeyWeChatConnectScopes:              "snsapi_base",
+		SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
+		SettingKeyWeChatConnectFrontendRedirectURL: "/auth/wechat/callback",
+	})
 
 	resp, err := svc.maybeBuildWeChatOAuthRequiredResponseForSelection(context.Background(), CreateOrderRequest{
 		Amount:          12.5,
@@ -175,3 +185,11 @@ func TestMaybeBuildWeChatOAuthRequiredResponseForSelectionSkipsEasyPayProvider(t
 		t.Fatalf("expected nil response, got %+v", resp)
 	}
 }
+
+func newWeChatPaymentOAuthTestService(values map[string]string) *PaymentService {
+	return &PaymentService{
+		configService: &PaymentConfigService{
+			settingRepo: &paymentConfigSettingRepoStub{values: values},
+		},
+	}
+}

backend/internal/service/setting_service.go

@@ -9,7 +9,6 @@ import (
 	"fmt"
 	"log/slog"
 	"net/url"
-	"os"
 	"sort"
 	"strconv"
 	"strings"
@@ -173,8 +172,43 @@ var (
 const (
 	defaultAuthSourceBalance     = 0
 	defaultAuthSourceConcurrency = 5
+	defaultWeChatConnectMode     = "open"
+	defaultWeChatConnectScopes   = "snsapi_login"
+	defaultWeChatConnectFrontend = "/auth/wechat/callback"
 )
 
+func normalizeWeChatConnectModeSetting(raw string) string {
+	switch strings.ToLower(strings.TrimSpace(raw)) {
+	case "mp":
+		return "mp"
+	default:
+		return "open"
+	}
+}
+
+func defaultWeChatConnectScopeForMode(mode string) string {
+	if normalizeWeChatConnectModeSetting(mode) == "mp" {
+		return "snsapi_userinfo"
+	}
+	return defaultWeChatConnectScopes
+}
+
+func normalizeWeChatConnectScopeSetting(raw, mode string) string {
+	switch normalizeWeChatConnectModeSetting(mode) {
+	case "mp":
+		switch strings.TrimSpace(raw) {
+		case "snsapi_base":
+			return "snsapi_base"
+		case "snsapi_userinfo":
+			return "snsapi_userinfo"
+		default:
+			return defaultWeChatConnectScopeForMode(mode)
+		}
+	default:
+		return defaultWeChatConnectScopes
+	}
+}
+
 // NewSettingService 创建系统设置服务实例
 func NewSettingService(settingRepo SettingRepository, cfg *config.Config) *SettingService {
 	return &SettingService{
@@ -240,6 +274,13 @@ func (s *SettingService) GetPublicSettings(ctx context.Context) (*PublicSettings
 		SettingKeyCustomMenuItems,
 		SettingKeyCustomEndpoints,
 		SettingKeyLinuxDoConnectEnabled,
+		SettingKeyWeChatConnectEnabled,
+		SettingKeyWeChatConnectAppID,
+		SettingKeyWeChatConnectAppSecret,
+		SettingKeyWeChatConnectMode,
+		SettingKeyWeChatConnectScopes,
+		SettingKeyWeChatConnectRedirectURL,
+		SettingKeyWeChatConnectFrontendRedirectURL,
 		SettingKeyBackendModeEnabled,
 		SettingPaymentEnabled,
 		SettingKeyOIDCConnectEnabled,
@@ -274,9 +315,7 @@ func (s *SettingService) GetPublicSettings(ctx context.Context) (*PublicSettings
 	if oidcProviderName == "" {
 		oidcProviderName = "OIDC"
 	}
-	weChatOpenEnabled := isWeChatOAuthOpenConfigured()
-	weChatMPEnabled := isWeChatOAuthMPConfigured()
-	weChatEnabled := weChatOpenEnabled || weChatMPEnabled
+	weChatEnabled, weChatOpenEnabled, weChatMPEnabled := s.weChatOAuthCapabilitiesFromSettings(settings)
 
 	// Password reset requires email verification to be enabled
 	emailVerifyEnabled := settings[SettingKeyEmailVerifyEnabled] == "true"
@@ -431,6 +470,56 @@ func (s *SettingService) GetPublicSettingsForInjection(ctx context.Context) (any
 	}, nil
 }
 
+func DefaultWeChatConnectScopesForMode(mode string) string {
+	return defaultWeChatConnectScopeForMode(mode)
+}
+
+func (s *SettingService) parseWeChatConnectOAuthConfig(settings map[string]string) (WeChatConnectOAuthConfig, error) {
+	cfg := WeChatConnectOAuthConfig{
+		Enabled:             settings[SettingKeyWeChatConnectEnabled] == "true",
+		AppID:               strings.TrimSpace(settings[SettingKeyWeChatConnectAppID]),
+		AppSecret:           strings.TrimSpace(settings[SettingKeyWeChatConnectAppSecret]),
+		Mode:                normalizeWeChatConnectModeSetting(settings[SettingKeyWeChatConnectMode]),
+		Scopes:              normalizeWeChatConnectScopeSetting(settings[SettingKeyWeChatConnectScopes], settings[SettingKeyWeChatConnectMode]),
+		RedirectURL:         strings.TrimSpace(settings[SettingKeyWeChatConnectRedirectURL]),
+		FrontendRedirectURL: strings.TrimSpace(settings[SettingKeyWeChatConnectFrontendRedirectURL]),
+	}
+	if cfg.FrontendRedirectURL == "" {
+		cfg.FrontendRedirectURL = defaultWeChatConnectFrontend
+	}
+
+	if !cfg.Enabled {
+		return WeChatConnectOAuthConfig{}, infraerrors.NotFound("OAUTH_DISABLED", "wechat oauth is disabled")
+	}
+	if cfg.AppID == "" {
+		return WeChatConnectOAuthConfig{}, infraerrors.InternalServer("OAUTH_CONFIG_INVALID", "wechat oauth app id not configured")
+	}
+	if cfg.AppSecret == "" {
+		return WeChatConnectOAuthConfig{}, infraerrors.InternalServer("OAUTH_CONFIG_INVALID", "wechat oauth app secret not configured")
+	}
+	if cfg.RedirectURL == "" {
+		return WeChatConnectOAuthConfig{}, infraerrors.InternalServer("OAUTH_CONFIG_INVALID", "wechat oauth redirect url not configured")
+	}
+	if cfg.FrontendRedirectURL == "" {
+		return WeChatConnectOAuthConfig{}, infraerrors.InternalServer("OAUTH_CONFIG_INVALID", "wechat oauth frontend redirect url not configured")
+	}
+	if err := config.ValidateAbsoluteHTTPURL(cfg.RedirectURL); err != nil {
+		return WeChatConnectOAuthConfig{}, infraerrors.InternalServer("OAUTH_CONFIG_INVALID", "wechat oauth redirect url invalid")
+	}
+	if err := config.ValidateFrontendRedirectURL(cfg.FrontendRedirectURL); err != nil {
+		return WeChatConnectOAuthConfig{}, infraerrors.InternalServer("OAUTH_CONFIG_INVALID", "wechat oauth frontend redirect url invalid")
+	}
+	return cfg, nil
+}
+
+func (s *SettingService) weChatOAuthCapabilitiesFromSettings(settings map[string]string) (bool, bool, bool) {
+	cfg, err := s.parseWeChatConnectOAuthConfig(settings)
+	if err != nil {
+		return false, false, false
+	}
+	return true, cfg.Mode == "open", cfg.Mode == "mp"
+}
+
 // filterUserVisibleMenuItems filters out admin-only menu items from a raw JSON
 // array string, returning only items with visibility != "admin".
 func filterUserVisibleMenuItems(raw string) json.RawMessage {
@@ -467,20 +556,6 @@ func filterUserVisibleMenuItems(raw string) json.RawMessage {
 	return result
 }
 
-func isWeChatOAuthConfigured() bool {
-	return isWeChatOAuthOpenConfigured() || isWeChatOAuthMPConfigured()
-}
-
-func isWeChatOAuthOpenConfigured() bool {
-	return strings.TrimSpace(os.Getenv("WECHAT_OAUTH_OPEN_APP_ID")) != "" &&
-		strings.TrimSpace(os.Getenv("WECHAT_OAUTH_OPEN_APP_SECRET")) != ""
-}
-
-func isWeChatOAuthMPConfigured() bool {
-	return strings.TrimSpace(os.Getenv("WECHAT_OAUTH_MP_APP_ID")) != "" &&
-		strings.TrimSpace(os.Getenv("WECHAT_OAUTH_MP_APP_SECRET")) != ""
-}
-
 // safeRawJSONArray returns raw as json.RawMessage if it's valid JSON, otherwise "[]".
 func safeRawJSONArray(raw string) json.RawMessage {
 	raw = strings.TrimSpace(raw)
@@ -625,6 +700,15 @@ func (s *SettingService) buildSystemSettingsUpdates(ctx context.Context, setting
 	}
 	settings.PaymentVisibleMethodAlipaySource = alipaySource
 	settings.PaymentVisibleMethodWxpaySource = wxpaySource
+	settings.WeChatConnectAppID = strings.TrimSpace(settings.WeChatConnectAppID)
+	settings.WeChatConnectAppSecret = strings.TrimSpace(settings.WeChatConnectAppSecret)
+	settings.WeChatConnectMode = normalizeWeChatConnectModeSetting(settings.WeChatConnectMode)
+	settings.WeChatConnectScopes = normalizeWeChatConnectScopeSetting(settings.WeChatConnectScopes, settings.WeChatConnectMode)
+	settings.WeChatConnectRedirectURL = strings.TrimSpace(settings.WeChatConnectRedirectURL)
+	settings.WeChatConnectFrontendRedirectURL = strings.TrimSpace(settings.WeChatConnectFrontendRedirectURL)
+	if settings.WeChatConnectFrontendRedirectURL == "" {
+		settings.WeChatConnectFrontendRedirectURL = defaultWeChatConnectFrontend
+	}
 
 	updates := make(map[string]string)
 
@@ -694,6 +778,17 @@ func (s *SettingService) buildSystemSettingsUpdates(ctx context.Context, setting
 		updates[SettingKeyOIDCConnectClientSecret] = settings.OIDCConnectClientSecret
 	}
 
+	// WeChat Connect OAuth 登录
+	updates[SettingKeyWeChatConnectEnabled] = strconv.FormatBool(settings.WeChatConnectEnabled)
+	updates[SettingKeyWeChatConnectAppID] = settings.WeChatConnectAppID
+	updates[SettingKeyWeChatConnectMode] = settings.WeChatConnectMode
+	updates[SettingKeyWeChatConnectScopes] = settings.WeChatConnectScopes
+	updates[SettingKeyWeChatConnectRedirectURL] = settings.WeChatConnectRedirectURL
+	updates[SettingKeyWeChatConnectFrontendRedirectURL] = settings.WeChatConnectFrontendRedirectURL
+	if settings.WeChatConnectAppSecret != "" {
+		updates[SettingKeyWeChatConnectAppSecret] = settings.WeChatConnectAppSecret
+	}
+
 	// OEM设置
 	updates[SettingKeySiteName] = settings.SiteName
 	updates[SettingKeySiteLogo] = settings.SiteLogo
@@ -1200,6 +1295,10 @@ func (s *SettingService) InitializeDefaultSettings(ctx context.Context) error {
 		SettingKeyTablePageSizeOptions:                     "[10,20,50,100]",
 		SettingKeyCustomMenuItems:                          "[]",
 		SettingKeyCustomEndpoints:                          "[]",
+		SettingKeyWeChatConnectEnabled:                     "false",
+		SettingKeyWeChatConnectMode:                        "open",
+		SettingKeyWeChatConnectScopes:                      "snsapi_login",
+		SettingKeyWeChatConnectFrontendRedirectURL:         defaultWeChatConnectFrontend,
 		SettingKeyOIDCConnectEnabled:                       "false",
 		SettingKeyOIDCConnectProviderName:                  "OIDC",
 		SettingKeyDefaultConcurrency:                       strconv.Itoa(s.cfg.Default.UserConcurrency),
@@ -1491,6 +1590,19 @@ func (s *SettingService) parseSettings(settings map[string]string) *SystemSettin
 	}
 	result.OIDCConnectClientSecretConfigured = result.OIDCConnectClientSecret != ""
 
+	// WeChat Connect 设置：完全以 DB 系统设置为准。
+	result.WeChatConnectEnabled = settings[SettingKeyWeChatConnectEnabled] == "true"
+	result.WeChatConnectAppID = strings.TrimSpace(settings[SettingKeyWeChatConnectAppID])
+	result.WeChatConnectAppSecret = strings.TrimSpace(settings[SettingKeyWeChatConnectAppSecret])
+	result.WeChatConnectAppSecretConfigured = result.WeChatConnectAppSecret != ""
+	result.WeChatConnectMode = normalizeWeChatConnectModeSetting(settings[SettingKeyWeChatConnectMode])
+	result.WeChatConnectScopes = normalizeWeChatConnectScopeSetting(settings[SettingKeyWeChatConnectScopes], settings[SettingKeyWeChatConnectMode])
+	result.WeChatConnectRedirectURL = strings.TrimSpace(settings[SettingKeyWeChatConnectRedirectURL])
+	result.WeChatConnectFrontendRedirectURL = strings.TrimSpace(settings[SettingKeyWeChatConnectFrontendRedirectURL])
+	if result.WeChatConnectFrontendRedirectURL == "" {
+		result.WeChatConnectFrontendRedirectURL = defaultWeChatConnectFrontend
+	}
+
 	// Model fallback settings
 	result.EnableModelFallback = settings[SettingKeyEnableModelFallback] == "true"
 	result.FallbackModelAnthropic = s.getStringOrDefault(settings, SettingKeyFallbackModelAnthropic, "claude-3-5-sonnet-20241022")
@@ -1972,6 +2084,26 @@ func (s *SettingService) GetLinuxDoConnectOAuthConfig(ctx context.Context) (conf
 	return effective, nil
 }
 
+// GetWeChatConnectOAuthConfig 返回用于登录的最终生效 WeChat Connect 配置。
+//
+// WeChat Connect 已回归 DB 系统设置模型，不再回退到 config/env。
+func (s *SettingService) GetWeChatConnectOAuthConfig(ctx context.Context) (WeChatConnectOAuthConfig, error) {
+	keys := []string{
+		SettingKeyWeChatConnectEnabled,
+		SettingKeyWeChatConnectAppID,
+		SettingKeyWeChatConnectAppSecret,
+		SettingKeyWeChatConnectMode,
+		SettingKeyWeChatConnectScopes,
+		SettingKeyWeChatConnectRedirectURL,
+		SettingKeyWeChatConnectFrontendRedirectURL,
+	}
+	settings, err := s.settingRepo.GetMultiple(ctx, keys)
+	if err != nil {
+		return WeChatConnectOAuthConfig{}, fmt.Errorf("get wechat connect settings: %w", err)
+	}
+	return s.parseWeChatConnectOAuthConfig(settings)
+}
+
 // GetOverloadCooldownSettings 获取529过载冷却配置
 func (s *SettingService) GetOverloadCooldownSettings(ctx context.Context) (*OverloadCooldownSettings, error) {
 	value, err := s.settingRepo.GetValue(ctx, SettingKeyOverloadCooldownSettings)

backend/internal/service/setting_service_public_test.go

@@ -92,16 +92,21 @@ func TestSettingService_GetPublicSettings_ExposesForceEmailOnThirdPartySignup(t
 }
 
 func TestSettingService_GetPublicSettings_ExposesWeChatOAuthModeCapabilities(t *testing.T) {
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_ID", "wx-open-app")
-	t.Setenv("WECHAT_OAUTH_OPEN_APP_SECRET", "wx-open-secret")
-	t.Setenv("WECHAT_OAUTH_MP_APP_ID", "")
-	t.Setenv("WECHAT_OAUTH_MP_APP_SECRET", "")
-
-	svc := NewSettingService(&settingPublicRepoStub{}, &config.Config{})
+	svc := NewSettingService(&settingPublicRepoStub{
+		values: map[string]string{
+			SettingKeyWeChatConnectEnabled:             "true",
+			SettingKeyWeChatConnectAppID:               "wx-mp-app",
+			SettingKeyWeChatConnectAppSecret:           "wx-mp-secret",
+			SettingKeyWeChatConnectMode:                "mp",
+			SettingKeyWeChatConnectScopes:              "snsapi_base",
+			SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
+			SettingKeyWeChatConnectFrontendRedirectURL: "/auth/wechat/callback",
+		},
+	}, &config.Config{})
 
 	settings, err := svc.GetPublicSettings(context.Background())
 	require.NoError(t, err)
 	require.True(t, settings.WeChatOAuthEnabled)
-	require.True(t, settings.WeChatOAuthOpenEnabled)
-	require.False(t, settings.WeChatOAuthMPEnabled)
+	require.False(t, settings.WeChatOAuthOpenEnabled)
+	require.True(t, settings.WeChatOAuthMPEnabled)
 }

backend/internal/service/setting_service_wechat_config_test.go

+//go:build unit
+
+package service
+
+import (
+	"context"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/stretchr/testify/require"
+)
+
+type settingWeChatRepoStub struct {
+	values map[string]string
+}
+
+func (s *settingWeChatRepoStub) Get(context.Context, string) (*Setting, error) {
+	panic("unexpected Get call")
+}
+
+func (s *settingWeChatRepoStub) GetValue(_ context.Context, key string) (string, error) {
+	if value, ok := s.values[key]; ok {
+		return value, nil
+	}
+	return "", ErrSettingNotFound
+}
+
+func (s *settingWeChatRepoStub) Set(context.Context, string, string) error {
+	panic("unexpected Set call")
+}
+
+func (s *settingWeChatRepoStub) GetMultiple(_ context.Context, keys []string) (map[string]string, error) {
+	out := make(map[string]string, len(keys))
+	for _, key := range keys {
+		if value, ok := s.values[key]; ok {
+			out[key] = value
+		}
+	}
+	return out, nil
+}
+
+func (s *settingWeChatRepoStub) SetMultiple(context.Context, map[string]string) error {
+	panic("unexpected SetMultiple call")
+}
+
+func (s *settingWeChatRepoStub) GetAll(context.Context) (map[string]string, error) {
+	panic("unexpected GetAll call")
+}
+
+func (s *settingWeChatRepoStub) Delete(context.Context, string) error {
+	panic("unexpected Delete call")
+}
+
+func TestSettingService_GetWeChatConnectOAuthConfig_UsesDatabaseOverrides(t *testing.T) {
+	repo := &settingWeChatRepoStub{
+		values: map[string]string{
+			SettingKeyWeChatConnectEnabled:             "true",
+			SettingKeyWeChatConnectAppID:               "wx-db-app",
+			SettingKeyWeChatConnectAppSecret:           "wx-db-secret",
+			SettingKeyWeChatConnectMode:                "mp",
+			SettingKeyWeChatConnectScopes:              "snsapi_base",
+			SettingKeyWeChatConnectRedirectURL:         "https://api.example.com/api/v1/auth/oauth/wechat/callback",
+			SettingKeyWeChatConnectFrontendRedirectURL: "/auth/wechat/callback",
+		},
+	}
+	svc := NewSettingService(repo, &config.Config{})
+
+	got, err := svc.GetWeChatConnectOAuthConfig(context.Background())
+	require.NoError(t, err)
+	require.True(t, got.Enabled)
+	require.Equal(t, "wx-db-app", got.AppID)
+	require.Equal(t, "wx-db-secret", got.AppSecret)
+	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)
+	require.Equal(t, "/auth/wechat/callback", got.FrontendRedirectURL)
+}

backend/internal/service/settings_view.go

@@ -31,6 +31,16 @@ type SystemSettings struct {
 	LinuxDoConnectClientSecretConfigured bool
 	LinuxDoConnectRedirectURL            string
 
+	// WeChat Connect OAuth 登录
+	WeChatConnectEnabled             bool
+	WeChatConnectAppID               string
+	WeChatConnectAppSecret           string
+	WeChatConnectAppSecretConfigured bool
+	WeChatConnectMode                string
+	WeChatConnectScopes              string
+	WeChatConnectRedirectURL         string
+	WeChatConnectFrontendRedirectURL string
+
 	// Generic OIDC OAuth 登录
 	OIDCConnectEnabled                bool
 	OIDCConnectProviderName           string
@@ -177,6 +187,16 @@ type PublicSettings struct {
 	BalanceLowNotifyRechargeURL string
 }
 
+type WeChatConnectOAuthConfig struct {
+	Enabled             bool
+	AppID               string
+	AppSecret           string
+	Mode                string
+	Scopes              string
+	RedirectURL         string
+	FrontendRedirectURL string
+}
+
 // 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

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

+import { describe, expect, it } from "vitest";
+
+import {
+  defaultWeChatConnectScopesForMode,
+  normalizeWeChatConnectMode,
+} from "@/api/admin/settings";
+
+describe("admin settings wechat connect helpers", () => {
+  it("normalizes legacy or noisy mode values to the backend contract", () => {
+    expect(normalizeWeChatConnectMode("OPEN")).toBe("open");
+    expect(normalizeWeChatConnectMode(" open_platform ")).toBe("open");
+    expect(normalizeWeChatConnectMode("mp")).toBe("mp");
+    expect(normalizeWeChatConnectMode("official_account")).toBe("mp");
+    expect(normalizeWeChatConnectMode("unknown")).toBe("open");
+  });
+
+  it("maps each mode to the backend default scopes", () => {
+    expect(defaultWeChatConnectScopesForMode("open")).toBe("snsapi_login");
+    expect(defaultWeChatConnectScopesForMode("mp")).toBe("snsapi_userinfo");
+  });
+});