- Replace calc.ts (150 lines) with expr-eval library
- Replace rgbLuminance with culori wcagLuminance
- Use @iconify/utils iconToSVG for viewBox normalization in iconify.ts
- Extract describe-shared.ts: findAncestorBackground, looksLikeButton, CONTAINER_TYPES
- Extract icon-render.ts: shared createIconFromPaths for create.ts and renderer.ts
- Inline codegen prompt as TS constant, remove runtime fs.readFile from MCP server
- Fix blur effect color alpha (a:1 → a:0)
- Encapsulate module-level mutable state in src/ai/tools.ts into RunState class
- Add network check to iconify tests (skip gracefully offline)
- Remove Caddyfile.dev and components.d.ts from tracking, add to .gitignore
- Track per-run step count, warn AI when 5 steps remain via _warning
field injected into tool results
- Show 'Continue' button in chat when step limit (50) is exhausted
- Add step budget section to system prompt so AI plans ahead
- Reset run step counter on each new agent call via prepareCall
