<!-- This is an auto-generated description by cubic. -->
## Summary by cubic
Switched image attachment e2e tests to use Playwright’s native file
chooser instead of setting hidden inputs. This reduces flakiness and
matches real user behavior.

- **Bug Fixes**
- Wait for the file chooser before clicking the menu item, then set
files via the dialog.
  - Removed hidden input selectors and Escape key handling.
  - Updated home chat, chat, and upload-to-codebase tests.

<sup>Written for commit 7afe922fa377ad29f0af880ed466a9ed31e0c602.
Summary will update on new commits.</sup>

<!-- End of auto-generated description by cubic. -->