[luinbytes]

Changes

• Restore the pre-Add a shared pixel and ASCII pond #72 Pixel pond’s koi population, animation, artwork, water constraints and interactions while keeping the ASCII view and the pond cat removed.
• Run Pixel and ASCII as separate scenes with a transition, reduced-motion handling and recovery when either renderer fails. Switching views restarts fish and food state.
• Retain food approach, reservation and bite-proximity safeguards in Pixel, and cover switching races, fallback, water interactions and Pixel simulation.

Verification

• npm run lint
• npm run test:pond (52 tests)
• npm run test:e2e (45 browser tests)
• Compared Pixel at 1440px and 390px against commit 10d94dc; checked 320px reduced motion, mode switching and failure recovery. Independent visual review found matching framing, koi sizes and variety; trajectories differ with capture timing and removal of cat interactions.

Comparison images show the original on the left (including the former cat) and the restored view on the right. The approved layout and view control are retained.

Side-by-side motion comparison

Fixes #73