Issue for this PR

Fixes #27879

Type of change

• Bug fix

What does this PR do?

Preserves non-sync TUI events while the current project is still loading, so startup events such as permission prompts and session status are not silently dropped before /project/current resolves.

Adds a regression test for project-scoped events emitted before the project context has synced.

How did you verify your code works?

• bun test test/cli/tui/use-event.test.tsx --timeout 30000
• bun typecheck
• bunx prettier --check src/cli/cmd/tui/context/event.ts test/cli/tui/use-event.test.tsx
• git diff --check
• git push pre-push hook: bun turbo typecheck

Screenshots / recordings

Not applicable; event handling regression.

Checklist

• I have tested this change locally.
• I have added or updated tests where appropriate.
• I have kept the change focused.