* feat: add experimental pet overlay
Adds an opt-in 3D pet overlay pinned to the bottom-right. Gated behind
an experimental flag so three.js + GLB models stay out of the renderer
bundle for users who never enable the feature. Ships with four bundled
models plus user-uploaded custom GLBs via a pet:import IPC; a status-bar
segment provides model picker + hide toggle.
See docs/design/pet-overlay.md for the full design.
Co-authored-by: Orca <help@stably.ai>
* refactor(pet): replace 3D GLB models with 2D webp images
Co-authored-by: Orca <help@stably.ai>
* chore(pet): compress pet webp images and remove unused assets
Reduce resources/claude.webp, gremlin.webp, opencode.webp sizes; drop
the obsolete pet-overlay design doc and compress-pet-glb script now
that the GLB pipeline has been replaced by 2D webp images.
Co-authored-by: Orca <help@stably.ai>
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Co-authored-by: Orca <help@stably.ai>