[suncihai]

Summary

Adds two interactive, lazily loaded 3D experiences:

• /lab/openlings — Character Lab with animations, expressions, props, and role presets.
• /lab/office — Eight-zone Living Office with animated Openlings, camera controls, simulated agent interactions, and task assignments.

Implementation

• Built with Three.js.
• Includes six optimized runtime GLBs (16.3 MiB), licensed under CC BY 4.0.
• Fixes Three.js viewer cleanup and memory leaks.
• No backend or LLM integration required.

Scope

Web-only experimental feature. No sidebar entry or Electron changes.

Validation

• Backend: 841 tests passed.
• Frontend: 437 tests passed.
• Interaction suite: 68/68.
• Lint, typecheck, production build, and visual comparisons passed.