New FeedbackFx static (MakeClip/MakeParticleMaterial/MakeBurst/PlayClip/EmitTinted/EmitAt); the 3 *FeedbackSystem copies + AmbientAudio.MakeSting now route through it via 'using static'. MakeBurst takes the FX-root + the per-use gravity/radius/sizeTail that were the only diffs between copies; MakeClip folds in noise + decay. Behaviour-identical by construction (every particle/clip param preserved exactly).
459/459 EditMode tests pass; compiles clean. VFX are presentation-only (no EditMode coverage) -> wants a Play-mode smoke to eyeball hit/death/harvest/structure bursts.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Rebuild the in-game HUD on UI Toolkit (HudUi/HudSystem, Aether palette) consistent with the menu; build-palette bar (BuildPaletteState) drives cursor->cell ground-ghost preview (green/red via BuildPreviewMath), left-click place / right-click cancel / rotate; fire suppressed in build mode; combat juice restyle. +4 BuildPreviewMath EditMode tests.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
kronic