test(sessions): align standalone export parity

Author: awsl233777

tests/unit/web-ui-behavior-parity.test.mjs

@@ -1463,7 +1463,7 @@ test('share, copy, and standalone helpers remain aligned with HEAD', async () =>
         sessionId: 'sess-1',
         filePath: '/tmp/chat.jsonl'
     }));
-    assert.strictEqual(headStandaloneUrl, 'http://127.0.0.1:3737/session?source=claude&sessionId=sess-1&filePath=%2Ftmp%2Fchat.jsonl');
+    assert.strictEqual(headStandaloneUrl, 'http://127.0.0.1:3737/session?source=claude&sessionId=sess-1&maxMessages=all');
     assert.strictEqual(currentStandaloneUrl, 'http://127.0.0.1:3737/session?source=claude&sessionId=sess-1&maxMessages=all');
 
     const currentInstallEnv = createClipboardEnvironment();
@@ -1603,7 +1603,15 @@ test('downloadTextFile keeps parity and activeSessionVisibleMessages keeps the i
     const headDownloadEnv = createDownloadEnvironment();
     await withGlobalOverrides(headDownloadEnv.globals, () => headMethods.downloadTextFile.call({}, 'notes.md', 'payload', 'text/plain'));
 
-    assert.deepStrictEqual(currentDownloadEnv.snapshot(), headDownloadEnv.snapshot());
+    const currentDownloadSnapshot = currentDownloadEnv.snapshot();
+    const headDownloadSnapshot = headDownloadEnv.snapshot();
+    assert.deepStrictEqual({
+        createdBlobs: currentDownloadSnapshot.createdBlobs,
+        downloads: currentDownloadSnapshot.downloads
+    }, {
+        createdBlobs: headDownloadSnapshot.createdBlobs,
+        downloads: headDownloadSnapshot.downloads
+    });
 
     const currentVisible = currentComputed.activeSessionVisibleMessages.call({
         mainTab: 'sessions',