sync: bring over remaining release/custom-0.1.115 changes

- Extract PublicSettingsInjectionPayload named struct with drift test
- Add channel_monitor_default_interval_seconds to SSR injection
- Add image_output_price to SupportedModelChip
- Simplify AppSidebar buildSelfNavItems (admins see available channels)
- Add gateway WARN logs for 503 no-available-accounts branches
- Wire ChannelMonitorRunner into provideCleanup for graceful shutdown
- Add migrations 130/131 (CC template userid fix + mimicry field cleanup)
- Clean up fork-only features (sora, claude max simulation, client affinity)
- Remove ~320 obsolete i18n keys
- Add codexUsage utility, WechatServiceButton, BulkEditAccountModal
- Tidy go.sum

backend/internal/repository/account_repo.go

@@ -313,6 +313,31 @@ func (r *accountRepository) ListCRSAccountIDs(ctx context.Context) (map[string]i
 	return result, nil
 }
 
+// CountByTLSFingerprintProfile 按 TLS 指纹模板 ID 聚合绑定账号数。
+// 走 108_add_tls_fingerprint_profile_id_index.sql 的表达式索引。
+func (r *accountRepository) CountByTLSFingerprintProfile(ctx context.Context) (map[int64]int, error) {
+	rows, err := r.sql.QueryContext(ctx, `
+		SELECT (extra->>'tls_fingerprint_profile_id')::bigint AS profile_id, COUNT(*)
+		FROM accounts
+		WHERE deleted_at IS NULL AND extra ? 'tls_fingerprint_profile_id'
+		GROUP BY profile_id`)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = rows.Close() }()
+
+	counts := make(map[int64]int)
+	for rows.Next() {
+		var id int64
+		var n int
+		if err := rows.Scan(&id, &n); err != nil {
+			return nil, err
+		}
+		counts[id] = n
+	}
+	return counts, rows.Err()
+}
+
 func (r *accountRepository) Update(ctx context.Context, account *service.Account) error {
 	if account == nil {
 		return nil

backend/internal/repository/gateway_cache.go

@@ -9,7 +9,9 @@ import (
 	"github.com/redis/go-redis/v9"
 )
 
-const stickySessionPrefix = "sticky_session:"
+const (
+	stickySessionPrefix = "sticky_session:"
+)
 
 type gatewayCache struct {
 	rdb *redis.Client
@@ -41,12 +43,6 @@ func (c *gatewayCache) RefreshSessionTTL(ctx context.Context, groupID int64, ses
 }
 
 // DeleteSessionAccountID 删除粘性会话与账号的绑定关系。
-// 当检测到绑定的账号不可用（如状态错误、禁用、不可调度等）时调用，
-// 以便下次请求能够重新选择可用账号。
-//
-// DeleteSessionAccountID removes the sticky session binding for the given session.
-// Called when the bound account becomes unavailable (e.g., error status, disabled,
-// or unschedulable), allowing subsequent requests to select a new available account.
 func (c *gatewayCache) DeleteSessionAccountID(ctx context.Context, groupID int64, sessionHash string) error {
 	key := buildSessionKey(groupID, sessionHash)
 	return c.rdb.Del(ctx, key).Err()

backend/internal/repository/usage_log_repo.go

@@ -3080,7 +3080,7 @@ func (r *usageLogRepository) GetGroupStatsWithFilters(ctx context.Context, start
 	query := `
 		SELECT
 			COALESCE(ul.group_id, 0) as group_id,
-			COALESCE(g.name, '') as group_name,
+			COALESCE(g.name, '(无分组)') as group_name,
 			COUNT(*) as requests,
 			COALESCE(SUM(ul.input_tokens + ul.output_tokens + ul.cache_creation_tokens + ul.cache_read_tokens), 0) as total_tokens,
 			COALESCE(SUM(ul.total_cost), 0) as cost,