ColorTooltips

- **Back-ported: a newly appeared tooltip could be misjudged as "lost" on the same frame**, skipping the fade-out delay and vanishing instantly instead of fading. Tooltips observed in the current frame are no longer treated as lost.
- **Back-ported: text tooltips could be clipped to nothing**, because the scissor rectangle used the animator's in-flight size, which could still belong to a differently sized tooltip. Text tooltips now align to their content size; item tooltip size easing is unchanged.

### Changed

- Removed dead code left over from the style-system refactor: unused policy helpers in `TooltipRenderPolicy`, the legacy `TooltipRenderer` overloads and their HSV helpers, the unused `ColorFlowAnimator` speed field/setters, and the unused `MissingRarityScreen`.
- `ConfigManager.getLoadWarnings()` no longer clears the warning list as a side effect; the consuming behaviour moved to the new `consumeLoadWarnings()`.

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