- Add colorToHex8 (hex with alpha via culori formatHex8)
- Add colorToCSSCompact (no-space rgba for Tailwind shadow classes)
- Add normalizeColor (partial Color → full Color with defaults)
- Add colorDistance (Euclidean RGB via culori differenceEuclidean)
- Replace colorToCSS body with culori formatRgb
- Change rgba255ToColor to positional args (r, g, b, a)
- Remove duplicate formatColor from svg-export.ts and export-jsx.ts
- Remove duplicate colorDistance from tools/analyze.ts
- Remove duplicate convertColor from kiwi/kiwi-convert.ts
- Replace hand-rolled hex+alpha in HsvColorArea.vue with colorToHex8
- Replace hand-rolled rgba255→Color in HsvColorArea.vue with rgba255ToColor
- Expand color.test.ts from 16 to 34 tests
- Strip tools/schema.ts from 1831 to 65 lines (remove duplicate tool defs)
- Fix tools/index.ts to export ALL_TOOLS from registry instead of schema
- Fix renderJsx → renderJSX typo in tools/create.ts and structure.ts
- Add geometry.ts with shared rotation/coordinate math utilities
- Add isArrayMixed() helper to use-multi-props.ts, deduplicate FillSection/StrokeSection/EffectsSection
- Fix broken test imports: use @open-pencil/core instead of relative paths into packages/core/src/
- Merge duplicate import statements across all test files
- Export profiler internals and style-run helpers from core index.ts
- Add 6 new test files: color, undo, snap, vector, style-runs, text-editor (98 new tests)
- Update renderer-effects test for renderer/ directory split
