feat: 添加RPC API路由支持与Zod验证错误响应

- 添加RPC API路由处理，支持多种HTTP方法并集成Zod验证错误的自定义错误响应。
- 添加对 `/api/rpc/$` 路由路径的支持，包括路由配置、类型定义和路由树的更新。

src/routes/api/rpc.$.ts

@@ -0,0 +1,70 @@
+import { ORPCError, onError, ValidationError } from '@orpc/server'
+import { RPCHandler } from '@orpc/server/fetch'
+import { createFileRoute } from '@tanstack/react-router'
+import { z } from 'zod'
+import { router } from '@/orpc/router'
+
+const handler = new RPCHandler(router, {
+  interceptors: [
+    onError((error) => {
+      console.error(error)
+    }),
+  ],
+  clientInterceptors: [
+    onError((error) => {
+      if (
+        error instanceof ORPCError &&
+        error.code === 'BAD_REQUEST' &&
+        error.cause instanceof ValidationError
+      ) {
+        // If you only use Zod you can safely cast to ZodIssue[]
+        const zodError = new z.ZodError(
+          error.cause.issues as z.core.$ZodIssue[],
+        )
+
+        throw new ORPCError('INPUT_VALIDATION_FAILED', {
+          status: 422,
+          message: z.prettifyError(zodError),
+          data: z.flattenError(zodError),
+          cause: error.cause,
+        })
+      }
+
+      if (
+        error instanceof ORPCError &&
+        error.code === 'INTERNAL_SERVER_ERROR' &&
+        error.cause instanceof ValidationError
+      ) {
+        throw new ORPCError('OUTPUT_VALIDATION_FAILED', {
+          cause: error.cause,
+        })
+      }
+    }),
+  ],
+})
+
+async function handle({ request }: { request: Request }) {
+  const { matched, response } = await handler.handle(request, {
+    prefix: '/api/rpc',
+    context: {},
+  })
+
+  if (matched) {
+    return response
+  }
+
+  return new Response('Not Found', { status: 404 })
+}
+
+export const Route = createFileRoute('/api/rpc/$')({
+  server: {
+    handlers: {
+      HEAD: handle,
+      GET: handle,
+      POST: handle,
+      PUT: handle,
+      PATCH: handle,
+      DELETE: handle,
+    },
+  },
+})