F1 (HIGH): Fix truncated-ternary in _bgLoadSettings — setZoomSmoothing and
setTiltSmoothing were closing before the ternary, storing the boolean
_bgHasStored(...) result instead of the camera-smoothing value. Move
closing ) to after : _cameraSmoothing. Add kill tests for both setters
asserting the argument contains '?'.
F2 (MED): Remove 13 dead DI params (5 lines) from createSceneInit signature
and matching entries from screen.js wiring:
- FRET_WIRE_HIT_OP / HIT_INTENSITY / HIT_DECAY (renderer.js only)
- updateStringHighlights (declared null, never called)
- getIsDestroyed (screen.js lifecycle flag, not scene-init's concern)
- setChartEnv/PrevT, setBcBeatIdx/NoteIdx/ChordIdx (BC chart-sync: per-frame)
- setTintR/G/B (BC tint: per-frame, managed outside scene-init)
DI count repinned: 183 → 178.
F3 (LOW): Add naming-correspondence guard — for every getX in the DI,
assert a matching setX exists unless getX is in READ_ONLY (6 pinned
stable-ref getters that scene-init never writes).
F4 (honesty): Rename smoke test — was 'setters called before null-T throw'
(wrong: null canvas returns before T is accessed, no setter is called).
Now: 'factory construction + null-canvas early guard'.
Remove dead di stub entries (FRET_WIRE_HIT_*, getIsDestroyed,
updateStringHighlights) that no longer exist in the DI signature.
Suite: 427/427 (h3d glob).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014uZ169yfoFYArXz962g7KW
