refactor: 移除旧版数据库配置的简易模式实现

移除与 PR #66 冲突的旧版简易模式实现（commit 7d4b7de）。
新版简易模式通过 run_mode 配置文件/环境变量控制，无需数据库设置。

后端变更：
- 移除 SettingKeySimpleMode 常量
- 移除 SystemSettings/PublicSettings 中的 SimpleMode 字段
- 移除 setting_handler 中的简易模式切换逻辑
- 移除 userService 依赖（不再需要自动设置管理员并发数）

前端变更：
- 移除 appStore.simpleMode 状态
- 移除设置页面的"使用模式"设置区块
- 移除 GroupsView 中的简易模式相关逻辑
- 移除相关国际化文案

backend/cmd/server/wire_gen.go

@@ -99,7 +99,7 @@ func initializeApplication(buildInfo handler.BuildInfo) (*Application, error) {
 	geminiOAuthHandler := admin.NewGeminiOAuthHandler(geminiOAuthService)
 	proxyHandler := admin.NewProxyHandler(adminService)
 	adminRedeemHandler := admin.NewRedeemHandler(adminService)
-	settingHandler := admin.NewSettingHandler(settingService, emailService, userService)
+	settingHandler := admin.NewSettingHandler(settingService, emailService)
 	updateCache := repository.NewUpdateCache(client)
 	gitHubReleaseClient := repository.NewGitHubReleaseClient()
 	serviceBuildInfo := provideServiceBuildInfo(buildInfo)

backend/internal/handler/admin/setting_handler.go

@@ -12,15 +12,13 @@ import (
 type SettingHandler struct {
 	settingService *service.SettingService
 	emailService   *service.EmailService
-	userService    *service.UserService
 }
 
 // NewSettingHandler 创建系统设置处理器
-func NewSettingHandler(settingService *service.SettingService, emailService *service.EmailService, userService *service.UserService) *SettingHandler {
+func NewSettingHandler(settingService *service.SettingService, emailService *service.EmailService) *SettingHandler {
 	return &SettingHandler{
 		settingService: settingService,
 		emailService:   emailService,
-		userService:    userService,
 	}
 }
 
@@ -54,7 +52,6 @@ func (h *SettingHandler) GetSettings(c *gin.Context) {
 		DocUrl:              settings.DocUrl,
 		DefaultConcurrency:  settings.DefaultConcurrency,
 		DefaultBalance:      settings.DefaultBalance,
-		SimpleMode:          settings.SimpleMode,
 	})
 }
 
@@ -89,9 +86,6 @@ type UpdateSettingsRequest struct {
 	// 默认配置
 	DefaultConcurrency int     `json:"default_concurrency"`
 	DefaultBalance     float64 `json:"default_balance"`
-
-	// 使用模式
-	SimpleMode bool `json:"simple_mode"`
 }
 
 // UpdateSettings 更新系统设置
@@ -114,14 +108,8 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		req.SmtpPort = 587
 	}
 
-	// 简单模式下自动关闭开放注册
-	registrationEnabled := req.RegistrationEnabled
-	if req.SimpleMode {
-		registrationEnabled = false
-	}
-
 	settings := &service.SystemSettings{
-		RegistrationEnabled: registrationEnabled,
+		RegistrationEnabled: req.RegistrationEnabled,
 		EmailVerifyEnabled:  req.EmailVerifyEnabled,
 		SmtpHost:            req.SmtpHost,
 		SmtpPort:            req.SmtpPort,
@@ -141,7 +129,6 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		DocUrl:              req.DocUrl,
 		DefaultConcurrency:  req.DefaultConcurrency,
 		DefaultBalance:      req.DefaultBalance,
-		SimpleMode:          req.SimpleMode,
 	}
 
 	if err := h.settingService.UpdateSettings(c.Request.Context(), settings); err != nil {
@@ -149,14 +136,6 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		return
 	}
 
-	// 如果切换到简单模式，自动将管理员并发数设为 99999
-	if req.SimpleMode && h.userService != nil {
-		admin, err := h.userService.GetFirstAdmin(c.Request.Context())
-		if err == nil && admin != nil {
-			_ = h.userService.UpdateConcurrency(c.Request.Context(), admin.ID, 99999)
-		}
-	}
-
 	// 重新获取设置返回
 	updatedSettings, err := h.settingService.GetAllSettings(c.Request.Context())
 	if err != nil {
@@ -185,7 +164,6 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		DocUrl:              updatedSettings.DocUrl,
 		DefaultConcurrency:  updatedSettings.DefaultConcurrency,
 		DefaultBalance:      updatedSettings.DefaultBalance,
-		SimpleMode:          updatedSettings.SimpleMode,
 	})
 }
 

backend/internal/handler/dto/settings.go

@@ -26,8 +26,6 @@ type SystemSettings struct {
 
 	DefaultConcurrency int     `json:"default_concurrency"`
 	DefaultBalance     float64 `json:"default_balance"`
-
-	SimpleMode bool `json:"simple_mode"` // 简单模式
 }
 
 type PublicSettings struct {
@@ -42,5 +40,4 @@ type PublicSettings struct {
 	ContactInfo         string `json:"contact_info"`
 	DocUrl              string `json:"doc_url"`
 	Version             string `json:"version"`
-	SimpleMode          bool   `json:"simple_mode"` // 简单模式
 }

backend/internal/handler/setting_handler.go

@@ -43,6 +43,5 @@ func (h *SettingHandler) GetPublicSettings(c *gin.Context) {
 		ContactInfo:         settings.ContactInfo,
 		DocUrl:              settings.DocUrl,
 		Version:             h.version,
-		SimpleMode:          settings.SimpleMode,
 	})
 }

backend/internal/service/domain_constants.go

@@ -90,9 +90,6 @@ const (
 
 	// 管理员 API Key
 	SettingKeyAdminApiKey = "admin_api_key" // 全局管理员 API Key（用于外部系统集成）
-
-	// 使用模式
-	SettingKeySimpleMode = "simple_mode" // 简单模式（隐藏多用户管理功能）
 )
 
 // Admin API Key prefix (distinct from user "sk-" keys)

backend/internal/service/setting_service.go

@@ -64,7 +64,6 @@ func (s *SettingService) GetPublicSettings(ctx context.Context) (*PublicSettings
 		SettingKeyApiBaseUrl,
 		SettingKeyContactInfo,
 		SettingKeyDocUrl,
-		SettingKeySimpleMode,
 	}
 
 	settings, err := s.settingRepo.GetMultiple(ctx, keys)
@@ -83,7 +82,6 @@ func (s *SettingService) GetPublicSettings(ctx context.Context) (*PublicSettings
 		ApiBaseUrl:          settings[SettingKeyApiBaseUrl],
 		ContactInfo:         settings[SettingKeyContactInfo],
 		DocUrl:              settings[SettingKeyDocUrl],
-		SimpleMode:          settings[SettingKeySimpleMode] == "true",
 	}, nil
 }
 
@@ -125,9 +123,6 @@ func (s *SettingService) UpdateSettings(ctx context.Context, settings *SystemSet
 	updates[SettingKeyDefaultConcurrency] = strconv.Itoa(settings.DefaultConcurrency)
 	updates[SettingKeyDefaultBalance] = strconv.FormatFloat(settings.DefaultBalance, 'f', 8, 64)
 
-	// 使用模式
-	updates[SettingKeySimpleMode] = strconv.FormatBool(settings.SimpleMode)
-
 	return s.settingRepo.SetMultiple(ctx, updates)
 }
 
@@ -228,7 +223,6 @@ func (s *SettingService) parseSettings(settings map[string]string) *SystemSettin
 		ApiBaseUrl:          settings[SettingKeyApiBaseUrl],
 		ContactInfo:         settings[SettingKeyContactInfo],
 		DocUrl:              settings[SettingKeyDocUrl],
-		SimpleMode:          settings[SettingKeySimpleMode] == "true",
 	}
 
 	// 解析整数类型

backend/internal/service/settings_view.go

@@ -25,8 +25,6 @@ type SystemSettings struct {
 
 	DefaultConcurrency int
 	DefaultBalance     float64
-
-	SimpleMode bool // 简单模式
 }
 
 type PublicSettings struct {
@@ -41,5 +39,4 @@ type PublicSettings struct {
 	ContactInfo         string
 	DocUrl              string
 	Version             string
-	SimpleMode          bool // 简单模式
 }

frontend/src/api/admin/settings.ts

@@ -34,8 +34,6 @@ export interface SystemSettings {
   turnstile_enabled: boolean
   turnstile_site_key: string
   turnstile_secret_key: string
-  // Usage mode
-  simple_mode: boolean
 }
 
 /**

frontend/src/i18n/locales/en.ts

@@ -1413,16 +1413,6 @@ export default {
         securityWarning: 'Warning: This key provides full admin access. Keep it secure.',
         usage: 'Usage: Add to request header - x-api-key: <your-admin-api-key>'
       },
-      usageMode: {
-        title: 'Usage Mode',
-        description: 'Toggle simple mode for a simplified interface',
-        simpleMode: 'Simple Mode',
-        simpleModeHint: 'Hide multi-user management features, suitable for personal use',
-        simpleModeWarning: 'When enabled, user management and redeem code menus will be hidden, registration will be disabled, and admin concurrency will be set to unlimited',
-        confirmTitle: 'Confirm Mode Change',
-        confirmEnableMessage: 'Are you sure you want to enable Simple Mode? This will hide multi-user management menus, disable registration, and set admin concurrency to 99999 (unlimited).',
-        confirmDisableMessage: 'Are you sure you want to disable Simple Mode? This will restore all management menus.'
-      },
       saveSettings: 'Save Settings',
       saving: 'Saving...',
       settingsSaved: 'Settings saved successfully',

frontend/src/i18n/locales/zh.ts

@@ -1610,16 +1610,6 @@ export default {
         securityWarning: '警告：此密钥拥有完整的管理员权限，请妥善保管。',
         usage: '使用方法：在请求头中添加 x-api-key: <your-admin-api-key>'
       },
-      usageMode: {
-        title: '使用模式',
-        description: '切换简单模式以简化界面',
-        simpleMode: '简单模式',
-        simpleModeHint: '隐藏多用户管理功能，适合个人使用',
-        simpleModeWarning: '启用后将隐藏用户管理、兑换码管理等菜单，关闭用户注册功能，并将管理员并发数设为无限制',
-        confirmTitle: '确认切换使用模式',
-        confirmEnableMessage: '确定要启用简单模式吗？启用后将隐藏多用户管理相关菜单、关闭用户注册功能，并将管理员并发数设为 99999（无限制）。',
-        confirmDisableMessage: '确定要关闭简单模式吗？关闭后将恢复显示所有管理菜单。'
-      },
       saveSettings: '保存设置',
       saving: '保存中...',
       settingsSaved: '设置保存成功',

frontend/src/stores/app.ts

@@ -30,7 +30,6 @@ export const useAppStore = defineStore('app', () => {
   const contactInfo = ref<string>('')
   const apiBaseUrl = ref<string>('')
   const docUrl = ref<string>('')
-  const simpleMode = ref<boolean>(false)
 
   // Version cache state
   const versionLoaded = ref<boolean>(false)
@@ -297,8 +296,7 @@ export const useAppStore = defineStore('app', () => {
         api_base_url: apiBaseUrl.value,
         contact_info: contactInfo.value,
         doc_url: docUrl.value,
-        version: siteVersion.value,
+        version: siteVersion.value
-        simple_mode: simpleMode.value
       }
     }
 
@@ -316,7 +314,6 @@ export const useAppStore = defineStore('app', () => {
       contactInfo.value = data.contact_info || ''
       apiBaseUrl.value = data.api_base_url || ''
       docUrl.value = data.doc_url || ''
-      simpleMode.value = data.simple_mode || false
       publicSettingsLoaded.value = true
       return data
     } catch (error) {
@@ -351,7 +348,6 @@ export const useAppStore = defineStore('app', () => {
     contactInfo,
     apiBaseUrl,
     docUrl,
-    simpleMode,
 
     // Version state
     versionLoaded,

frontend/src/types/index.ts

@@ -55,7 +55,6 @@ export interface PublicSettings {
   contact_info: string
   doc_url: string
   version: string
-  simple_mode: boolean
 }
 
 export interface AuthResponse {

frontend/src/views/admin/GroupsView.vue

@@ -683,18 +683,10 @@ const editStatusOptions = computed(() => [
   { value: 'inactive', label: t('common.inactive') }
 ])
 
-const subscriptionTypeOptions = computed(() => {
+const subscriptionTypeOptions = computed(() => [
-  // 简单模式下只显示订阅模式（配额模式）
+  { value: 'standard', label: t('admin.groups.subscription.standard') },
-  if (appStore.simpleMode) {
+  { value: 'subscription', label: t('admin.groups.subscription.subscription') }
-    return [
+])
-      { value: 'subscription', label: t('admin.groups.subscription.subscription') }
-    ]
-  }
-  return [
-    { value: 'standard', label: t('admin.groups.subscription.standard') },
-    { value: 'subscription', label: t('admin.groups.subscription.subscription') }
-  ]
-})
 
 const groups = ref<Group[]>([])
 const loading = ref(false)
@@ -804,7 +796,7 @@ const closeCreateModal = () => {
   createForm.platform = 'anthropic'
   createForm.rate_multiplier = 1.0
   createForm.is_exclusive = false
-  createForm.subscription_type = appStore.simpleMode ? 'subscription' : 'standard'
+  createForm.subscription_type = 'standard'
   createForm.daily_limit_usd = null
   createForm.weekly_limit_usd = null
   createForm.monthly_limit_usd = null
@@ -895,9 +887,5 @@ watch(
 
 onMounted(() => {
   loadGroups()
-  // 简单模式下默认使用订阅模式
-  if (appStore.simpleMode) {
-    createForm.subscription_type = 'subscription'
-  }
 })
 </script>

frontend/src/views/admin/SettingsView.vue

@@ -153,58 +153,6 @@
           </div>
         </div>
 
-        <!-- Usage Mode Settings -->
-        <div class="card">
-          <div class="border-b border-gray-100 px-6 py-4 dark:border-dark-700">
-            <h2 class="text-lg font-semibold text-gray-900 dark:text-white">
-              {{ t('admin.settings.usageMode.title') }}
-            </h2>
-            <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
-              {{ t('admin.settings.usageMode.description') }}
-            </p>
-          </div>
-          <div class="space-y-5 p-6">
-            <!-- Simple Mode Toggle -->
-            <div class="flex items-center justify-between">
-              <div>
-                <label class="font-medium text-gray-900 dark:text-white">
-                  {{ t('admin.settings.usageMode.simpleMode') }}
-                </label>
-                <p class="text-sm text-gray-500 dark:text-gray-400">
-                  {{ t('admin.settings.usageMode.simpleModeHint') }}
-                </p>
-              </div>
-              <Toggle
-                :model-value="form.simple_mode"
-                @update:model-value="onSimpleModeToggle"
-              />
-            </div>
-
-            <!-- Warning when simple mode is enabled -->
-            <div
-              v-if="form.simple_mode"
-              class="rounded-lg border border-amber-200 bg-amber-50 p-4 dark:border-amber-800 dark:bg-amber-900/20"
-            >
-              <div class="flex items-start">
-                <svg
-                  class="mt-0.5 h-5 w-5 flex-shrink-0 text-amber-500"
-                  fill="currentColor"
-                  viewBox="0 0 20 20"
-                >
-                  <path
-                    fill-rule="evenodd"
-                    d="M8.257 3.099c.765-1.36 2.722-1.36 3.486 0l5.58 9.92c.75 1.334-.213 2.98-1.742 2.98H4.42c-1.53 0-2.493-1.646-1.743-2.98l5.58-9.92zM11 13a1 1 0 11-2 0 1 1 0 012 0zm-1-8a1 1 0 00-1 1v3a1 1 0 002 0V6a1 1 0 00-1-1z"
-                    clip-rule="evenodd"
-                  />
-                </svg>
-                <p class="ml-3 text-sm text-amber-700 dark:text-amber-300">
-                  {{ t('admin.settings.usageMode.simpleModeWarning') }}
-                </p>
-              </div>
-            </div>
-          </div>
-        </div>
-
         <!-- Registration Settings -->
         <div class="card">
           <div class="border-b border-gray-100 px-6 py-4 dark:border-dark-700">
@@ -758,19 +706,6 @@
         </div>
       </form>
     </div>
-
-    <!-- Simple Mode Confirmation Dialog -->
-    <ConfirmDialog
-      :show="showSimpleModeConfirm"
-      :title="t('admin.settings.usageMode.confirmTitle')"
-      :message="pendingSimpleModeValue
-        ? t('admin.settings.usageMode.confirmEnableMessage')
-        : t('admin.settings.usageMode.confirmDisableMessage')"
-      :confirm-text="t('common.confirm')"
-      :cancel-text="t('common.cancel')"
-      @confirm="confirmSimpleModeChange"
-      @cancel="cancelSimpleModeChange"
-    />
   </AppLayout>
 </template>
 
@@ -781,7 +716,6 @@ import { adminAPI } from '@/api'
 import type { SystemSettings } from '@/api/admin/settings'
 import AppLayout from '@/components/layout/AppLayout.vue'
 import Toggle from '@/components/common/Toggle.vue'
-import ConfirmDialog from '@/components/common/ConfirmDialog.vue'
 import { useAppStore } from '@/stores'
 
 const { t } = useI18n()
@@ -794,10 +728,6 @@ const sendingTestEmail = ref(false)
 const testEmailAddress = ref('')
 const logoError = ref('')
 
-// Simple mode confirmation dialog
-const showSimpleModeConfirm = ref(false)
-const pendingSimpleModeValue = ref(false)
-
 // Admin API Key 状态
 const adminApiKeyLoading = ref(true)
 const adminApiKeyExists = ref(false)
@@ -826,9 +756,7 @@ const form = reactive<SystemSettings>({
   // Cloudflare Turnstile
   turnstile_enabled: false,
   turnstile_site_key: '',
-  turnstile_secret_key: '',
+  turnstile_secret_key: ''
-  // Usage mode
-  simple_mode: false
 })
 
 function handleLogoUpload(event: Event) {
@@ -899,40 +827,6 @@ async function saveSettings() {
   }
 }
 
-// Simple mode toggle handlers
-function onSimpleModeToggle(value: boolean) {
-  pendingSimpleModeValue.value = value
-  showSimpleModeConfirm.value = true
-}
-
-async function confirmSimpleModeChange() {
-  showSimpleModeConfirm.value = false
-  form.simple_mode = pendingSimpleModeValue.value
-
-  saving.value = true
-  try {
-    await adminAPI.settings.updateSettings(form)
-    await appStore.fetchPublicSettings(true)
-    appStore.showSuccess(t('admin.settings.settingsSaved'))
-    // Reload page to apply menu changes
-    setTimeout(() => {
-      window.location.reload()
-    }, 500)
-  } catch (error: any) {
-    // Revert on error
-    form.simple_mode = !pendingSimpleModeValue.value
-    appStore.showError(
-      t('admin.settings.failedToSave') + ': ' + (error.message || t('common.unknownError'))
-    )
-  } finally {
-    saving.value = false
-  }
-}
-
-function cancelSimpleModeChange() {
-  showSimpleModeConfirm.value = false
-}
-
 async function testSmtpConnection() {
   testingSmtp.value = true
   try {