docs(plan): generator UX redesign — inline panel + ✨ trigger
4 tasks, ~3 commits. Task 1 polishes labels (lowercase + gold *).
Task 2 git-mvs the popover module to generator-panel. Task 3 rewrites
the panel with new API (parent + trigger + context), updates both
callers (login.ts, settings-vault.ts) for ✨ + inline mount, swaps
CSS, adapts existing tests + adds 3 new ones (aria-expanded, auto-gen,
Escape). Task 4 verifies build + tests + manual smoke.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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