Fix component kit lifecycle, overlays, and editor correctness #1360

Job	Run time
test	6m 14s
format	53s
Typecheck — public API (type-tests)	48s
Dev build — grid renders under StrictMode	2m 15s
lint	59s
Examples registry — freshness	31s
build	1m 30s
typecheck	1m 40s
security-audit	30s
Publish preflight	26s
Bench — Playwright (real Chromium)	1m 45s
API Extractor — report freshness	50s
Packaging — publint + attw	2m 21s
Deploy → Vercel (preview)	1m 51s
Deploy → Vercel (production)	-1s
Production deploy — did it actually happen?	0s
Smoke test → Vercel preview (Playwright)	9m 20s
	31m 52s

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