0.10.1: 安全与业务逻辑加固、新品牌与部署加固

三轮审查修复(60+ 项),相对远端 main(b536672)的关键变更:
- 安全: 数据面 SSRF 拨号防护(防 DNS rebinding)/上游凭据剥离/登录防枚举
  与锁定态统一/可信代理(X-Forwarded-For)限流加固/会话版本失效机制/
  撤销即时传播/弱密钥拒绝启动/脱敏字节级重写(保签名契约)
- 业务逻辑: 裸 body 上传 panic/bootstrap 审计管线卡死/定价通配符优先级/
  全局工具可见性/调度器停机补跑/TOTP 挑战令牌消费顺序/熔断探针语义/
  >4MB 响应 token 计量/管理员重置密码作废会话 等
- 前端: 新 logo(语枢 AI 网关主题)/Provider 凭据异常警示/删除入口/
  后端错误消息透传/localStorage 敏感数据收敛
- 部署: CREDENTIAL_MASTER_KEY 持久化与弱值拒绝/Provider DELETE 接口/
  nginx 安全头/worker 内存限制
- 新增迁移 000029(key_hash 索引)/000030(usage_daily 币种维度)

internal/audit/maintenance.go

@@ -21,17 +21,19 @@ type MaintenanceResult struct {
 	DroppedPartitions []string `json:"dropped_partitions"`
 	DeletedAuditRows  int64    `json:"deleted_audit_rows"`
 	DeletedUsageRows  int64    `json:"deleted_usage_rows"`
+	DeletedTraceRows  int64    `json:"deleted_trace_rows"`
 }
 
 type Maintenance struct {
 	pool           *pgxpool.Pool
 	auditRetention time.Duration
 	usageRetention time.Duration
+	traceRetention time.Duration
 	monthsAhead    int
 }
 
-func NewMaintenance(pool *pgxpool.Pool, auditRetention, usageRetention time.Duration, monthsAhead int) *Maintenance {
-	return &Maintenance{pool: pool, auditRetention: auditRetention, usageRetention: usageRetention, monthsAhead: monthsAhead}
+func NewMaintenance(pool *pgxpool.Pool, auditRetention, usageRetention, traceRetention time.Duration, monthsAhead int) *Maintenance {
+	return &Maintenance{pool: pool, auditRetention: auditRetention, usageRetention: usageRetention, traceRetention: traceRetention, monthsAhead: monthsAhead}
 }
 
 func (m *Maintenance) Run(ctx context.Context, now time.Time) (MaintenanceResult, error) {
@@ -105,6 +107,15 @@ func (m *Maintenance) Run(ctx context.Context, now time.Time) (MaintenanceResult
 		return result, fmt.Errorf("apply usage retention: %w", err)
 	}
 	result.DeletedUsageRows = deleted.RowsAffected()
+	// M9 Trace 保留:agent_trace_spans 通过 ON DELETE CASCADE 一并清理,
+	// 防止 trace 表无界增长(每条应用/数字员工请求都会写 trace)。
+	if m.traceRetention > 0 {
+		deleted, err = tx.Exec(ctx, `DELETE FROM gateway.agent_traces WHERE started_at < $1`, now.Add(-m.traceRetention))
+		if err != nil {
+			return result, fmt.Errorf("apply trace retention: %w", err)
+		}
+		result.DeletedTraceRows = deleted.RowsAffected()
+	}
 	if err := tx.Commit(ctx); err != nil {
 		return result, fmt.Errorf("commit audit maintenance: %w", err)
 	}