fix: 修正 middleware 导入路径、清理 catalog 冗余项、同步文档

apps/server/src/server/api/interceptors.ts

@@ -11,6 +11,7 @@ export const handleValidationError = (error: unknown) => {
     error.code === 'BAD_REQUEST' &&
     error.cause instanceof ValidationError
   ) {
+    // If you only use Zod you can safely cast to ZodIssue[] (per ORPC official docs)
     const zodError = new z.ZodError(error.cause.issues as z.core.$ZodIssue[])
 
     throw new ORPCError('INPUT_VALIDATION_FAILED', {

apps/server/src/server/api/middlewares/db.middleware.ts

@@ -1,4 +1,4 @@
-import { os } from '@orpc/server'
+import { os } from '@/server/api/server'
 import { getDB } from '@/server/db'
 
 export const db = os.middleware(async ({ context, next }) => {