- Add flutter clean before build to prevent stale cached artifacts - Add VERSION build arg for explicit cache busting - Reorder build steps: clean → pub get → build_runner → health.json → build - Replace deprecated dart:html with package:web in iframe_view_web.dart - Add lint ignore to generate_health_json.dart Fixes issue where Docker layer caching kept old main.dart.js while regenerating health.json with new version number. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>