docs: add state-driven local-app example

[0xMudit]

Summary

• Adds a packaged examples/state-driven-local-app runnable example for the state-driven local-app library route.
• Shows a custom CuaExecutor, non-vision CuaProvider, parseLabConfig, runLab, and verifyRun end to end.
• Includes the example in the npm package files and adds a release-readiness test so future releases keep shipping it.

Closes #153

Test Plan

• pnpm vitest run tests/release.test.ts --testNamePattern "state-driven local-app"
• pnpm build && npx tsx examples/state-driven-local-app/run-state-driven-local-app.ts
• pnpm check
• pnpm public-surface:scan
• npm pack --dry-run --json