Flaky browser test: create-folder affordances command palette input fails to render

[badcuban]

The ChatView browser test 'shows create-folder affordances for missing project paths' fails intermittently in CI with:

AssertionError: Command palette input with placeholder "Enter path (e.g. ~/projects/my-app)" did not render.: expected null to be truthy (ChatView.browser.tsx:1469)

Two occurrences on unrelated PRs within hours: run 31134951119 (PR #114, passed on rerun) and run 31143097098 (PR #116). Local runs pass consistently (including three consecutive full runs during PR #115 verification), which points at a timing/race on the slower CI runner, likely around the command palette opening or the add-project submenu mounting.

Cost: every hit blocks a required check until a manual rerun.

[badcuban]

Third occurrence: run 31186137279 (PR #121, unrelated installer diff). Same assertion, passed on rerun each prior time. Rerun tax is now 3 required-check blocks in two days — worth a real fix.