[kkd16]

Sunwake kept drawing full scenes while paused or behind menus, repeated physics poses on high-refresh screens, and slowed its flight clock below 20 FPS. This update interpolates presentation between the unchanged 120 Hz simulation steps, uses one input/render scheduler, freezes inactive scenes, bounds canvas resolution, caches terrain samples, and suspends quiet audio. Local three-second checks now record zero world repaints on pause, results, and menu backgrounds.

Version 0.3.1 adds saved scenery/motion preferences and accessible flight settings; fixes controller handoff, right-click input, fullscreen exit, scrolling, focus, and same-course keyboard retries; keeps dialog dismissal reachable; and improves mobile instruments, coaching placement, and compact landscape play. Existing progress, rewards, courses, and recorded ghost physics are preserved. All changes are inside projects/sunwake-a6f3/.

Validation:

• Exact repository publishing gate passes (scope, conformance, frozen pnpm install, lint, build, and subpath-safe output).
• Engine checks and 38 unit tests pass, including interpolation at 60/90/144/240 Hz and bounded render samples.
• 16 flights of 100 seconds match every gameplay state field against v0.3.
• 29 production browser scenarios pass across the gameplay, Atlas, and polish suites, with clean consoles. Coverage includes real UI touch/controller input, saved progress, ghosts, expeditions, hidden/idle rendering, slow-frame timing, audio suspension, fullscreen, and 320/390 px portrait plus 844 px landscape.
• Desktop/mobile visuals reviewed; README and JOURNAL updated.

[github-actions]

✅ Scope + lint + build passed.