feat: enhance file upload handling with improved file detection, size limits, and response formatting

src/routes/health.ts

@@ -1,13 +1,15 @@
 import { sql } from 'drizzle-orm';
 import { db } from '../db';
+import { getErrorMessage } from '../utils/file';
 import logger from '../utils/logger';
 
 export const handleHealth = async (_req: Request): Promise<Response> => {
   try {
     await db.execute(sql`SELECT 1`);
     return Response.json({ status: 'ok' }, { status: 200 });
-  } catch (error: any) {
-    logger.error('Health check failed', { error: error.message });
-    return Response.json({ status: 'error', error: error.message }, { status: 500 });
+  } catch (error: unknown) {
+    const message = getErrorMessage(error);
+    logger.error('Health check failed', { error: message });
+    return Response.json({ status: 'error', error: message }, { status: 500 });
   }
 };