Constraints - Device Ports

Date: 2026-07-21 Per user instruction.

No LLM on device games
No actual talking / voice I/O (no mic, no TTS, no voice rec)
Pure mechanics: grid, dice RNG, terrain, counters, procedural seed, visual expressions only
Pixel Petz Corgi researched as FORM FACTOR only (screen-face + sprite expressions), not voice feature. Our version = deterministic pixel faces (100+ sprite states) + beeps/chimes, no speech.
Keep Paper Apps DNA: pencil + d6 + lines/circles translated to digital tiles + buttons