Replaces the dead ColorScheme.fromSeed(Colors.indigo) (declared but
never consumed by any screen/widget) with theme.dart: an explicit
dark ColorScheme plus a real AppStatusColors extension, since this
app genuinely uses success/warning status colors throughout (unlike
dufs-cloud's app). Routes all 10 screen/widget files' ~280 hardcoded
Colors.*/fontSize literals through it. Fixes the two flagged
DESIGN_AUDIT_TODO violations: home_screen's Resume/Start buttons now
use a real 2x horizontal:vertical padding ratio, and rep_circle's
BoxShadow (the one shadow in an otherwise flat dark UI) is removed.
- Add sqflite_common_ffi + very_good_analysis; tighten analysis_options
- Add BackupService for JSON export/import of exercise state
- Add full test coverage: models, screens, services, widgets
- Add scripts/check_flutter_coverage.sh to enforce 100% line coverage
- Add docstrings to ExerciseState fields and storage service
- Minor fixes across screens, widgets, and sync/HTTP services
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VuiPt6GPWkxpLbJFrnfy8U
Full-featured workout tracker with session persistence, auto A/B cycling,
warmup weights (4/5 of target), settings weight stepper, history + progress
graph, HTTP sync server, and crash-safe active session resume.
Removed per-set break timers per user preference. Dropped audioplayers and
vibration dependencies; updated permission_handler to 12.x to eliminate
two of three KGP build warnings (shared_preferences_android is an upstream issue).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
