Add configurable office state animation mappings

[iamlukethedev]

Summary

• Add a persisted per-office state-to-animation mapping config for custom runtime states such as writing, executing, waiting, and error.
• Apply configured mappings to derived office animation hold maps without moving policy into the 3D scene.
• Keep the default office path inert when no custom mappings are configured.
• Cover settings normalization and mapping derivation with focused unit tests.

Testing

• npm run test -- --run tests/unit/studioSettings.test.ts tests/unit/officeEventTriggers.test.ts
• npm run typecheck
• npm run smoke:dev-server
• Fresh Chrome/Playwright office load with onboarding bypassed and zero captured console errors.

configurable_state_mapping_final_office.webm
Final office smoke screenshot

_{To show artifacts inline, enable in settings.}