refactor: flatten monorepo into standalone project

src/server/api/interceptors.ts

@@ -0,0 +1,26 @@
+import { ORPCError, ValidationError } from '@orpc/server'
+import { z } from 'zod'
+
+export const logError = (error: unknown) => {
+  console.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)
+    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,
+    })
+  }
+}