feat: v3 phase 7 - meal plan totals, snack fixes, nutrition notes

fix: lock body scroll when DayOverviewModal is open

feat: switch to external DayOverviewModal + add savedWorkouts & muscleGroups util

Merge branch 'claude/competent-bardeen'

feat: v3 phase 5 - dashboard with activity stats, today's workout & meals

feat: Round 3 UI/UX overhaul + Phase 3 "I've Been Bad" accountability page

fix: robust section parsing + raw fallback for Gemini format variations

fix: improve error handling in habit controller and frontend

feat: add "I've Been Bad" accountability page (Phase 3)

feat: round 3 — unit support, edit mode staged state, muscle tag accuracy, UX polish

feat: round 3 UI/UX overhaul — unit support, edit mode staged state, muscle accuracy

fix: v3 plan page UX fixes - revert titles and sets/reps, spacing, generation errors

feat: v3 phase 2 - workout plan UX redesign, exercise modal, hover highlights, regenerate modal

feat: v3 phase 1 - database schema for habits, tasks, saved workouts

feat: v2 complete - AI service updates, full test suite, cleanup