fix(react-doctor): clear state and effect warnings

[bntvllnt]

Summary

• Clears the react-doctor: state & effects — derived state, cascading setState, effect-event handlers (41 warnings) #271 state/effects React Doctor rule family by replacing derived default state, effect-owned event handlers, and effect-driven state sync patterns.
• Adds React 18-compatible state/event helper hooks for uncontrolled defaults, controlled state, and stable document/window listeners.
• Regenerates the affected registry component copies through the build pipeline.

Validation

• pnpm -F @vllnt/ui lint
• pnpm -F @vllnt/ui exec tsc --noEmit --project tsconfig.build.json
• pnpm -F @vllnt/ui-registry exec tsc --noEmit --project tsconfig.json
• pnpm build
• pnpm test:once
• git diff --check
• git diff --cached --check
• npx --yes react-doctor . --offline --json (targeted react-doctor: state & effects — derived state, cascading setState, effect-event handlers (41 warnings) #271 rules = 0)
• npx --yes react-doctor . --diff origin/main --annotations --fail-on error --offline (exits 0; non-target warnings remain from other tracked issue families)

Notes

• Kept the event helper React 18-compatible instead of using React 19 useEffectEvent because @vllnt/ui peers react >=18.0.0.
• Build still prints the known Next.js multiple-lockfile root warning in worktrees.
• Tests still print known jsdom navigation, ShareDialog Description, and InteractiveTimeline duplicate-key warnings.

Closes #271

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
storybook	Ready	Preview, Comment	May 13, 2026 0:06am
ui.vllnt.ai	Ready	Preview, Comment	May 13, 2026 0:06am