Integrate Oudelaa backend features, security, tests, and deployment updates

scripts/startup-benchmark.js

@@ -139,6 +139,16 @@ async function main() {
         2,
       ),
     );
+  } catch (error) {
+    const reason = error instanceof Error ? error.message : String(error);
+    throw new Error(
+      [
+        reason,
+        `Child exit code: ${child.exitCode ?? 'still-running'}`,
+        `Recent stdout: ${stdoutLines.join(' | ') || 'none'}`,
+        `Recent stderr: ${stderrLines.join(' | ') || 'none'}`,
+      ].join('\n'),
+    );
   } finally {
     await terminate(child);
   }