chore: remove unused real-time log stream / request event bus
删除 fork 独有的实时日志相关功能（上游 Wei-Shaw/sub2api 不存在）：
A. OpsLogBroadcaster + SSE 日志流（前端有用但用户不需要）:
- backend/internal/service/ops_log_broadcaster{,_test}.go
- backend/internal/handler/ops_log_stream_middleware.go
- backend/internal/handler/admin/ops_log_stream_handler.go
- backend/internal/server/routes/admin.go: GET /admin/ops/logs/{stream,recent}
- backend/internal/server/routes/{gateway,windsurf_gateway}.go: opsLogStream middleware
- backend/internal/service/wire.go: ProvideOpsLogBroadcaster
- frontend/src/views/admin/ops/OpsLogStreamView.vue
- frontend/src/api/admin/ops.ts: subscribeOpsLogStream, getRecentOpsLogs,
OpsLogEntry/OpsLogFilter/OpsLogRecentResponse 类型
- frontend/src/router/index.ts: AdminOpsLogStream 路由
- frontend/src/components/layout/AppSidebar.vue: 侧边栏入口
- frontend/src/i18n/locales/{en,zh}.ts: nav.opsLogStream + admin.ops.logStream 全部文案
B. RequestEventBus + WS 请求事件流（前端零调用 dead code）:
- backend/internal/service/request_event_bus{,_test}.go
- backend/internal/handler/admin/ops_ws_requests_handler.go
- backend/internal/server/routes/admin.go: GET /admin/ops/ws/requests
- backend/internal/handler/gateway_handler.go: RequestEventBus 字段/参数 +
reqStartTime + reqEventAccountID/reqEventStatus 跟踪 + defer Publish
- backend/internal/service/wire.go: NewRequestEventBus
- backend/internal/handler/admin/ops_handler.go: OpsHandler 中
requestEventBus + logBroadcaster 字段,简化 NewOpsHandler 签名
保留:
- /admin/ops/ws/qps (前端 QPS 监控仍在用)
- /admin/ops/realtime-traffic (前端在用)
- OpsErrorLoggerMiddleware (与本次无关)
签名变更:
- NewOpsHandler(opsService) — 移除 requestEventBus, logBroadcaster
- NewGatewayHandler(...): 移除 requestEventBus 末位参数
- ProvideRouter / SetupRouter / registerRoutes / RegisterGatewayRoutes /
RegisterWindsurfGatewayRoutes: 移除 opsLogBroadcaster 参数
- 同步更新 wire_gen.go + 测试调用点
验证:
- 后端 go build/vet 通过
- 前端 pnpm run build 通过 (9.48s)
- 测试: 2 个 baseline 既存失败 (TestProxyImportData...,
TestWindsurfTierAccessService_Snapshot_HappyPath) 与本次无关
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