AKUNUR 3.1.0-alpha.4 VALIDATION REPORT

Automated suite:
- core smoke and parity
- alpha.11 inherited rule regression
- player-foundation and three-player manual opening tests
- reserve lifecycle including corner and Still Point capture-to-reserve
- result and analysis regression
- tactical and strategic agent regression
- symmetry, seeded determinism and replay/resume
- browser module smoke

Three-player AI/autoplay is intentionally disabled. Alpha.4 remains a manual three-player rules-testing build.

Manual checks recommended:
- owner colour remains obvious on White, Black and Wood Echo Pieces at phone size
- reserve/Echo action appears immediately beneath the board on mobile/tablet layouts
- corner captures add to the captured player's reserve
- reserve return still consumes the entire turn and uses only vacant original formation cells
