Fix Lock In 42P18: cast id::text to resolve parameter type ambiguity

PostgreSQL could not determine the type of $2 in 'WHERE id = $2'
when id column type is UUID. Casting the column (id::text = $1)
sidesteps the extended-protocol type inference issue. Also moves
projectId to $1 to match the proven working pattern in other routes.

Made-with: Cursor

app/api/projects/[projectId]/design-surfaces/route.ts

@@ -83,9 +83,11 @@ export async function PATCH(
       return NextResponse.json({ error: 'Invalid body' }, { status: 400 });
     }
 
+    // Put projectId as $1 (matches known-working pattern in other routes)
+    // and cast id::text to avoid "could not determine data type of parameter" (42P18)
     await query(
-      `UPDATE fs_projects SET data = $1::jsonb WHERE id = $2`,
-      [JSON.stringify(updated), projectId]
+      `UPDATE fs_projects SET data = $2::jsonb WHERE id::text = $1`,
+      [projectId, JSON.stringify(updated)]
     );
 
     return NextResponse.json({ success: true });