flutter-dart-code-review

# /supergraph:flutter-dart-code-review Library-agnostic Flutter/Dart code review. Graph-first, then checklist. Announce: "🐦 /supergraph:flutter-dart-code-review — reviewing Flutter/Dart code..." ## Steps ### 1. Graph analysis (surface hotspots before manual review) Use `CBM_PROJECT`: call `get_architecture` with `hotspots`, then validated `hubs`, `cycles`, `complexity`, `cross-boundary`, and `test-gaps` recipes. Apply the existing Flutter thresholds: `build()` over 80–100 lines, complexity limits, 10+ dependents, circular DI, unexpected layer coupling, and untested files. **Serena (optional — if available):** ``` mcp__serena__get_diagnostics_for_file(<file>) # type errors, null safety violations mcp__serena__find_referencing_symbols(<symbol>) # callers of changed public APIs mcp__serena__find_implementations(<interface>) # subclasses after interface change ``` Skip if Serena unavailable. ### 2. Manual checklist review Work through [CHECKLIST.md](./CHECKLIST.md) — 15 sections covering: General health · Dart pitfalls · Widgets · State management · Performance · Testing · Accessibility · Platform · Security · Dependencies · Navigation · Error handling · l10n · DI · Static analysis Focus on areas flagged by step 1 first. ### 3. Report ``` ## Flutter/Dart Review - Graph hotspots: [list/none] - Serena diagnostics: [issues/clean/skipped] - Checklist: PASS | ISSUES (list critical items) - Next: /supergraph:fix → /supergraph:verify ``` ## Rules - Run graph an...