fix: read OAuth clientId from window.huggingface.variables; direct commit instead of PR

bench-app.js

@@ -740,7 +740,8 @@ function wireHubHandlers() {
           machineSlug: first.machine?.slug || 'unknown',
           browser: first.browser || 'unknown-browser',
         });
-        const link = res.prUrl || `https://huggingface.co/datasets/${HF_DATASET_REPO}/blob/main/${res.path}`;
+        const link = res.commitUrl
+          || `https://huggingface.co/datasets/${HF_DATASET_REPO}/blob/main/${res.path}`;
         logLine(`Submitted: ${link}`);
         flashButton(submitBtn, 'Submitted!');
         // Allow further submissions of newer runs.