feat(server): 新增统一 logger 入口与 /health liveness 端点

- src/server/logger.ts 包一层 console.*，给后续 pino/otel 迁移留单点
- interceptors.ts 的 logError 改走 logger.error，业务侧禁止直接 console.*
- /health 返回 'ok'，纯 liveness（不查 DB），DB 挂时探活仍绿

src/routeTree.gen.ts

@@ -9,10 +9,16 @@
 // Additionally, you should also exclude this file from your linter and/or formatter to prevent it from being checked or modified.
 
 import { Route as rootRouteImport } from './routes/__root'
+import { Route as HealthRouteImport } from './routes/health'
 import { Route as IndexRouteImport } from './routes/index'
 import { Route as ApiSplatRouteImport } from './routes/api/$'
 import { Route as ApiRpcSplatRouteImport } from './routes/api/rpc.$'
 
+const HealthRoute = HealthRouteImport.update({
+  id: '/health',
+  path: '/health',
+  getParentRoute: () => rootRouteImport,
+} as any)
 const IndexRoute = IndexRouteImport.update({
   id: '/',
   path: '/',
@@ -31,36 +37,47 @@ const ApiRpcSplatRoute = ApiRpcSplatRouteImport.update({
 
 export interface FileRoutesByFullPath {
   '/': typeof IndexRoute
+  '/health': typeof HealthRoute
   '/api/$': typeof ApiSplatRoute
   '/api/rpc/$': typeof ApiRpcSplatRoute
 }
 export interface FileRoutesByTo {
   '/': typeof IndexRoute
+  '/health': typeof HealthRoute
   '/api/$': typeof ApiSplatRoute
   '/api/rpc/$': typeof ApiRpcSplatRoute
 }
 export interface FileRoutesById {
   __root__: typeof rootRouteImport
   '/': typeof IndexRoute
+  '/health': typeof HealthRoute
   '/api/$': typeof ApiSplatRoute
   '/api/rpc/$': typeof ApiRpcSplatRoute
 }
 export interface FileRouteTypes {
   fileRoutesByFullPath: FileRoutesByFullPath
-  fullPaths: '/' | '/api/$' | '/api/rpc/$'
+  fullPaths: '/' | '/health' | '/api/$' | '/api/rpc/$'
   fileRoutesByTo: FileRoutesByTo
-  to: '/' | '/api/$' | '/api/rpc/$'
+  to: '/' | '/health' | '/api/$' | '/api/rpc/$'
-  id: '__root__' | '/' | '/api/$' | '/api/rpc/$'
+  id: '__root__' | '/' | '/health' | '/api/$' | '/api/rpc/$'
   fileRoutesById: FileRoutesById
 }
 export interface RootRouteChildren {
   IndexRoute: typeof IndexRoute
+  HealthRoute: typeof HealthRoute
   ApiSplatRoute: typeof ApiSplatRoute
   ApiRpcSplatRoute: typeof ApiRpcSplatRoute
 }
 
 declare module '@tanstack/react-router' {
   interface FileRoutesByPath {
+    '/health': {
+      id: '/health'
+      path: '/health'
+      fullPath: '/health'
+      preLoaderRoute: typeof HealthRouteImport
+      parentRoute: typeof rootRouteImport
+    }
     '/': {
       id: '/'
       path: '/'
@@ -87,6 +104,7 @@ declare module '@tanstack/react-router' {
 
 const rootRouteChildren: RootRouteChildren = {
   IndexRoute: IndexRoute,
+  HealthRoute: HealthRoute,
   ApiSplatRoute: ApiSplatRoute,
   ApiRpcSplatRoute: ApiRpcSplatRoute,
 }

src/routes/health.ts

@@ -0,0 +1,9 @@
+import { createFileRoute } from '@tanstack/react-router'
+
+export const Route = createFileRoute('/health')({
+  server: {
+    handlers: {
+      GET: () => new Response('ok', { status: 200, headers: { 'content-type': 'text/plain' } }),
+    },
+  },
+})

src/server/api/interceptors.ts

@@ -1,13 +1,14 @@
 import { ORPCError, ValidationError } from '@orpc/server'
 import { z } from 'zod'
+import { logger } from '@/server/logger'
 
 export const logError = (error: unknown) => {
-  console.error(error)
+  logger.error(error)
 }
 
 export const handleValidationError = (error: unknown) => {
   if (error instanceof ORPCError && error.code === 'BAD_REQUEST' && error.cause instanceof ValidationError) {
-    // If you only use Zod you can safely cast to ZodIssue[] (per ORPC official docs)
+    // ORPC ValidationError.issues are Zod issues in this app.
     const zodError = new z.ZodError(error.cause.issues as z.core.$ZodIssue[])
 
     throw new ORPCError('INPUT_VALIDATION_FAILED', {

src/server/logger.ts

@@ -0,0 +1,5 @@
+export const logger = {
+  error: (error: unknown) => console.error(error),
+  warn: (...args: unknown[]) => console.warn(...args),
+  info: (...args: unknown[]) => console.info(...args),
+}