feat: OpenAI OAuth账号显示Codex使用量

从响应头提取x-codex-*使用量信息并保存到账号Extra字段，
前端账号列表展示5h/7d窗口的使用进度条。

backend/internal/repository/account_repo.go

@@ -23,14 +23,18 @@ func (r *AccountRepository) Create(ctx context.Context, account *model.Account)
 
 func (r *AccountRepository) GetByID(ctx context.Context, id int64) (*model.Account, error) {
 	var account model.Account
-	err := r.db.WithContext(ctx).Preload("Proxy").Preload("AccountGroups").First(&account, id).Error
+	err := r.db.WithContext(ctx).Preload("Proxy").Preload("AccountGroups.Group").First(&account, id).Error
 	if err != nil {
 		return nil, err
 	}
-	// 填充 GroupIDs 虚拟字段
+	// 填充 GroupIDs 和 Groups 虚拟字段
 	account.GroupIDs = make([]int64, 0, len(account.AccountGroups))
+	account.Groups = make([]*model.Group, 0, len(account.AccountGroups))
 	for _, ag := range account.AccountGroups {
 		account.GroupIDs = append(account.GroupIDs, ag.GroupID)
+		if ag.Group != nil {
+			account.Groups = append(account.Groups, ag.Group)
+		}
 	}
 	return &account, nil
 }
@@ -303,3 +307,31 @@ func (r *AccountRepository) SetSchedulable(ctx context.Context, id int64, schedu
 	return r.db.WithContext(ctx).Model(&model.Account{}).Where("id = ?", id).
 		Update("schedulable", schedulable).Error
 }
+
+// UpdateExtra updates specific fields in account's Extra JSONB field
+// It merges the updates into existing Extra data without overwriting other fields
+func (r *AccountRepository) UpdateExtra(ctx context.Context, id int64, updates map[string]any) error {
+	if len(updates) == 0 {
+		return nil
+	}
+
+	// Get current account to preserve existing Extra data
+	var account model.Account
+	if err := r.db.WithContext(ctx).Select("extra").Where("id = ?", id).First(&account).Error; err != nil {
+		return err
+	}
+
+	// Initialize Extra if nil
+	if account.Extra == nil {
+		account.Extra = make(model.JSONB)
+	}
+
+	// Merge updates into existing Extra
+	for k, v := range updates {
+		account.Extra[k] = v
+	}
+
+	// Save updated Extra
+	return r.db.WithContext(ctx).Model(&model.Account{}).Where("id = ?", id).
+		Update("extra", account.Extra).Error
+}

backend/internal/service/openai_gateway_service.go

@@ -11,6 +11,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"strconv"
 	"strings"
 	"time"
 
@@ -38,6 +39,18 @@ var openaiAllowedHeaders = map[string]bool{
 	"session_id":      true,
 }
 
+// OpenAICodexUsageSnapshot represents Codex API usage limits from response headers
+type OpenAICodexUsageSnapshot struct {
+	PrimaryUsedPercent          *float64 `json:"primary_used_percent,omitempty"`
+	PrimaryResetAfterSeconds    *int     `json:"primary_reset_after_seconds,omitempty"`
+	PrimaryWindowMinutes        *int     `json:"primary_window_minutes,omitempty"`
+	SecondaryUsedPercent        *float64 `json:"secondary_used_percent,omitempty"`
+	SecondaryResetAfterSeconds  *int     `json:"secondary_reset_after_seconds,omitempty"`
+	SecondaryWindowMinutes      *int     `json:"secondary_window_minutes,omitempty"`
+	PrimaryOverSecondaryPercent *float64 `json:"primary_over_secondary_percent,omitempty"`
+	UpdatedAt                   string   `json:"updated_at,omitempty"`
+}
+
 // OpenAIUsage represents OpenAI API response usage
 type OpenAIUsage struct {
 	InputTokens              int `json:"input_tokens"`
@@ -284,6 +297,13 @@ func (s *OpenAIGatewayService) Forward(ctx context.Context, c *gin.Context, acco
 		}
 	}
 
+	// Extract and save Codex usage snapshot from response headers (for OAuth accounts)
+	if account.Type == model.AccountTypeOAuth {
+		if snapshot := extractCodexUsageHeaders(resp.Header); snapshot != nil {
+			s.updateCodexUsageSnapshot(ctx, account.ID, snapshot)
+		}
+	}
+
 	return &OpenAIForwardResult{
 		RequestID:    resp.Header.Get("x-request-id"),
 		Usage:        *usage,
@@ -708,3 +728,109 @@ func (s *OpenAIGatewayService) RecordUsage(ctx context.Context, input *OpenAIRec
 
 	return nil
 }
+
+// extractCodexUsageHeaders extracts Codex usage limits from response headers
+func extractCodexUsageHeaders(headers http.Header) *OpenAICodexUsageSnapshot {
+	snapshot := &OpenAICodexUsageSnapshot{}
+	hasData := false
+
+	// Helper to parse float64 from header
+	parseFloat := func(key string) *float64 {
+		if v := headers.Get(key); v != "" {
+			if f, err := strconv.ParseFloat(v, 64); err == nil {
+				return &f
+			}
+		}
+		return nil
+	}
+
+	// Helper to parse int from header
+	parseInt := func(key string) *int {
+		if v := headers.Get(key); v != "" {
+			if i, err := strconv.Atoi(v); err == nil {
+				return &i
+			}
+		}
+		return nil
+	}
+
+	// Primary (weekly) limits
+	if v := parseFloat("x-codex-primary-used-percent"); v != nil {
+		snapshot.PrimaryUsedPercent = v
+		hasData = true
+	}
+	if v := parseInt("x-codex-primary-reset-after-seconds"); v != nil {
+		snapshot.PrimaryResetAfterSeconds = v
+		hasData = true
+	}
+	if v := parseInt("x-codex-primary-window-minutes"); v != nil {
+		snapshot.PrimaryWindowMinutes = v
+		hasData = true
+	}
+
+	// Secondary (5h) limits
+	if v := parseFloat("x-codex-secondary-used-percent"); v != nil {
+		snapshot.SecondaryUsedPercent = v
+		hasData = true
+	}
+	if v := parseInt("x-codex-secondary-reset-after-seconds"); v != nil {
+		snapshot.SecondaryResetAfterSeconds = v
+		hasData = true
+	}
+	if v := parseInt("x-codex-secondary-window-minutes"); v != nil {
+		snapshot.SecondaryWindowMinutes = v
+		hasData = true
+	}
+
+	// Overflow ratio
+	if v := parseFloat("x-codex-primary-over-secondary-limit-percent"); v != nil {
+		snapshot.PrimaryOverSecondaryPercent = v
+		hasData = true
+	}
+
+	if !hasData {
+		return nil
+	}
+
+	snapshot.UpdatedAt = time.Now().Format(time.RFC3339)
+	return snapshot
+}
+
+// updateCodexUsageSnapshot saves the Codex usage snapshot to account's Extra field
+func (s *OpenAIGatewayService) updateCodexUsageSnapshot(ctx context.Context, accountID int64, snapshot *OpenAICodexUsageSnapshot) {
+	if snapshot == nil {
+		return
+	}
+
+	// Convert snapshot to map for merging into Extra
+	updates := make(map[string]any)
+	if snapshot.PrimaryUsedPercent != nil {
+		updates["codex_primary_used_percent"] = *snapshot.PrimaryUsedPercent
+	}
+	if snapshot.PrimaryResetAfterSeconds != nil {
+		updates["codex_primary_reset_after_seconds"] = *snapshot.PrimaryResetAfterSeconds
+	}
+	if snapshot.PrimaryWindowMinutes != nil {
+		updates["codex_primary_window_minutes"] = *snapshot.PrimaryWindowMinutes
+	}
+	if snapshot.SecondaryUsedPercent != nil {
+		updates["codex_secondary_used_percent"] = *snapshot.SecondaryUsedPercent
+	}
+	if snapshot.SecondaryResetAfterSeconds != nil {
+		updates["codex_secondary_reset_after_seconds"] = *snapshot.SecondaryResetAfterSeconds
+	}
+	if snapshot.SecondaryWindowMinutes != nil {
+		updates["codex_secondary_window_minutes"] = *snapshot.SecondaryWindowMinutes
+	}
+	if snapshot.PrimaryOverSecondaryPercent != nil {
+		updates["codex_primary_over_secondary_percent"] = *snapshot.PrimaryOverSecondaryPercent
+	}
+	updates["codex_usage_updated_at"] = snapshot.UpdatedAt
+
+	// Update account's Extra field asynchronously
+	go func() {
+		updateCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+		_ = s.accountRepo.UpdateExtra(updateCtx, accountID, updates)
+	}()
+}

backend/internal/service/ports/account.go

@@ -34,4 +34,5 @@ type AccountRepository interface {
 	SetOverloaded(ctx context.Context, id int64, until time.Time) error
 	ClearRateLimit(ctx context.Context, id int64) error
 	UpdateSessionWindow(ctx context.Context, id int64, start, end *time.Time, status string) error
+	UpdateExtra(ctx context.Context, id int64, updates map[string]any) error
 }

frontend/src/components/account/AccountUsageCell.vue

@@ -68,7 +68,31 @@
       <SetupTokenTimeWindow :account="account" />
     </template>
 
-    <!-- OpenAI accounts: no usage window API, show dash -->
+    <!-- OpenAI OAuth accounts: show Codex usage from extra field -->
+    <template v-else-if="account.platform === 'openai' && account.type === 'oauth'">
+      <div v-if="hasCodexUsage" class="space-y-1">
+        <!-- 5h Window (Secondary) -->
+        <UsageProgressBar
+          v-if="codexSecondaryUsedPercent !== null"
+          label="5h"
+          :utilization="codexSecondaryUsedPercent"
+          :resets-at="codexSecondaryResetAt"
+          color="indigo"
+        />
+
+        <!-- Weekly Window (Primary) -->
+        <UsageProgressBar
+          v-if="codexPrimaryUsedPercent !== null"
+          label="7d"
+          :utilization="codexPrimaryUsedPercent"
+          :resets-at="codexPrimaryResetAt"
+          color="emerald"
+        />
+      </div>
+      <div v-else class="text-xs text-gray-400">-</div>
+    </template>
+
+    <!-- Other accounts: no usage window -->
     <template v-else>
       <div class="text-xs text-gray-400">-</div>
     </template>
@@ -100,9 +124,44 @@ const showUsageWindows = computed(() =>
   props.account.type === 'oauth' || props.account.type === 'setup-token'
 )
 
+// OpenAI Codex usage computed properties
+const hasCodexUsage = computed(() => {
+  const extra = props.account.extra
+  return extra && (
+    extra.codex_primary_used_percent !== undefined ||
+    extra.codex_secondary_used_percent !== undefined
+  )
+})
+
+const codexPrimaryUsedPercent = computed(() => {
+  const extra = props.account.extra
+  if (!extra || extra.codex_primary_used_percent === undefined) return null
+  return extra.codex_primary_used_percent
+})
+
+const codexSecondaryUsedPercent = computed(() => {
+  const extra = props.account.extra
+  if (!extra || extra.codex_secondary_used_percent === undefined) return null
+  return extra.codex_secondary_used_percent
+})
+
+const codexPrimaryResetAt = computed(() => {
+  const extra = props.account.extra
+  if (!extra || extra.codex_primary_reset_after_seconds === undefined) return null
+  const resetTime = new Date(Date.now() + extra.codex_primary_reset_after_seconds * 1000)
+  return resetTime.toISOString()
+})
+
+const codexSecondaryResetAt = computed(() => {
+  const extra = props.account.extra
+  if (!extra || extra.codex_secondary_reset_after_seconds === undefined) return null
+  const resetTime = new Date(Date.now() + extra.codex_secondary_reset_after_seconds * 1000)
+  return resetTime.toISOString()
+})
+
 const loadUsage = async () => {
   // Only fetch usage for Anthropic OAuth accounts
-  // OpenAI doesn't have a usage window API - usage is updated from response headers during forwarding
+  // OpenAI usage comes from account.extra field (updated during forwarding)
   if (props.account.platform !== 'anthropic' || props.account.type !== 'oauth') return
 
   loading.value = true

frontend/src/components/common/SubscriptionProgressMini.vue

@@ -29,7 +29,7 @@
     <transition name="dropdown">
       <div
         v-if="tooltipOpen"
-        class="absolute right-0 mt-2 w-80 bg-white dark:bg-dark-800 rounded-xl shadow-xl border border-gray-200 dark:border-dark-700 z-50"
+        class="absolute right-0 mt-2 w-[340px] bg-white dark:bg-dark-800 rounded-xl shadow-xl border border-gray-200 dark:border-dark-700 z-50 overflow-hidden"
       >
         <div class="p-3 border-b border-gray-100 dark:border-dark-700">
           <h3 class="text-sm font-semibold text-gray-900 dark:text-white">
@@ -62,43 +62,43 @@
             <!-- Progress bars -->
             <div class="space-y-1.5">
               <div v-if="subscription.group?.daily_limit_usd" class="flex items-center gap-2">
-                <span class="text-[10px] text-gray-500 w-8">{{ t('subscriptionProgress.daily') }}</span>
+                <span class="text-[10px] text-gray-500 w-8 flex-shrink-0">{{ t('subscriptionProgress.daily') }}</span>
-                <div class="flex-1 bg-gray-200 dark:bg-dark-600 rounded-full h-1.5">
+                <div class="flex-1 min-w-0 bg-gray-200 dark:bg-dark-600 rounded-full h-1.5">
                   <div
                     class="h-1.5 rounded-full transition-all"
                     :class="getProgressBarClass(subscription.daily_usage_usd, subscription.group?.daily_limit_usd)"
                     :style="{ width: getProgressWidth(subscription.daily_usage_usd, subscription.group?.daily_limit_usd) }"
                   ></div>
                 </div>
-                <span class="text-[10px] text-gray-500 w-16 text-right">
+                <span class="text-[10px] text-gray-500 w-24 text-right flex-shrink-0">
                   {{ formatUsage(subscription.daily_usage_usd, subscription.group?.daily_limit_usd) }}
                 </span>
               </div>
 
               <div v-if="subscription.group?.weekly_limit_usd" class="flex items-center gap-2">
-                <span class="text-[10px] text-gray-500 w-8">{{ t('subscriptionProgress.weekly') }}</span>
+                <span class="text-[10px] text-gray-500 w-8 flex-shrink-0">{{ t('subscriptionProgress.weekly') }}</span>
-                <div class="flex-1 bg-gray-200 dark:bg-dark-600 rounded-full h-1.5">
+                <div class="flex-1 min-w-0 bg-gray-200 dark:bg-dark-600 rounded-full h-1.5">
                   <div
                     class="h-1.5 rounded-full transition-all"
                     :class="getProgressBarClass(subscription.weekly_usage_usd, subscription.group?.weekly_limit_usd)"
                     :style="{ width: getProgressWidth(subscription.weekly_usage_usd, subscription.group?.weekly_limit_usd) }"
                   ></div>
                 </div>
-                <span class="text-[10px] text-gray-500 w-16 text-right">
+                <span class="text-[10px] text-gray-500 w-24 text-right flex-shrink-0">
                   {{ formatUsage(subscription.weekly_usage_usd, subscription.group?.weekly_limit_usd) }}
                 </span>
               </div>
 
               <div v-if="subscription.group?.monthly_limit_usd" class="flex items-center gap-2">
-                <span class="text-[10px] text-gray-500 w-8">{{ t('subscriptionProgress.monthly') }}</span>
+                <span class="text-[10px] text-gray-500 w-8 flex-shrink-0">{{ t('subscriptionProgress.monthly') }}</span>
-                <div class="flex-1 bg-gray-200 dark:bg-dark-600 rounded-full h-1.5">
+                <div class="flex-1 min-w-0 bg-gray-200 dark:bg-dark-600 rounded-full h-1.5">
                   <div
                     class="h-1.5 rounded-full transition-all"
                     :class="getProgressBarClass(subscription.monthly_usage_usd, subscription.group?.monthly_limit_usd)"
                     :style="{ width: getProgressWidth(subscription.monthly_usage_usd, subscription.group?.monthly_limit_usd) }"
                   ></div>
                 </div>
-                <span class="text-[10px] text-gray-500 w-16 text-right">
+                <span class="text-[10px] text-gray-500 w-24 text-right flex-shrink-0">
                   {{ formatUsage(subscription.monthly_usage_usd, subscription.group?.monthly_limit_usd) }}
                 </span>
               </div>

frontend/src/types/index.ts

@@ -316,6 +316,7 @@ export interface Account {
   platform: AccountPlatform;
   type: AccountType;
   credentials?: Record<string, unknown>;
+  extra?: CodexUsageSnapshot & Record<string, unknown>; // Extra fields including Codex usage
   proxy_id: number | null;
   concurrency: number;
   priority: number;
@@ -361,6 +362,18 @@ export interface AccountUsageInfo {
   seven_day_sonnet: UsageProgress | null;
 }
 
+// OpenAI Codex usage snapshot (from response headers)
+export interface CodexUsageSnapshot {
+  codex_primary_used_percent?: number;        // Weekly limit usage percentage
+  codex_primary_reset_after_seconds?: number; // Seconds until weekly reset
+  codex_primary_window_minutes?: number;      // Weekly window in minutes
+  codex_secondary_used_percent?: number;      // 5h limit usage percentage
+  codex_secondary_reset_after_seconds?: number; // Seconds until 5h reset
+  codex_secondary_window_minutes?: number;    // 5h window in minutes
+  codex_primary_over_secondary_percent?: number; // Overflow ratio
+  codex_usage_updated_at?: string;            // Last update timestamp
+}
+
 export interface CreateAccountRequest {
   name: string;
   platform: AccountPlatform;