v5.5.6 — Tooling, Lint & Memory Safety

What's Changed

Bug Fixes

• Canvas memory: Release export canvas after DPI encoding to prevent Safari GPU memory leaks
• Canvas memory: Release SVG export canvas immediately after rasterization
• Lint: Add TypeScript files to ESLint coverage scope
• Lint: Enforce no-console rule across all production paths

Documentation

• Align README, CONTRIBUTING, and ARCHITECTURE docs with v5.5.3 state
• Consolidate CHANGELOG and append full v1.x–v4.x history
• Rewrite ROADMAP as faithful v5.5.3 snapshot
• Standardize SECURITY.md and correct MAX_FEN_LENGTH documentation

Full diff: v5.5.3...v5.5.6