workout generator audit: rules engine, structure rules, split patterns, injury UX, metadata cleanup

- Add rules_engine.py with quantitative rules for all 8 workout types
- Add quality gate retry loop in generate_single_workout()
- Expand calibrate_structure_rules to all 120 combinations (8 types × 5 goals × 3 sections)
- Wire WeeklySplitPattern DB records into _pick_weekly_split()
- Enforce movement patterns from WorkoutStructureRule in exercise selection
- Add straight-set strength support (single main lift, 4-6 rounds)
- Add modality consistency check for duration-dominant workout types
- Add InjuryStep component to onboarding and preferences
- Add sibling exercise exclusion in regenerate and preview_day endpoints
- Display generator warnings on dashboard
- Expand fix_rep_durations, fix_exercise_flags, fix_movement_pattern_typo
- Add audit_exercise_data and check_rules_drift management commands
- Add Next.js frontend with dashboard, onboarding, preferences, history pages
- Add generator app with ML-powered workout generation pipeline
- 96 new tests across 7 test modules

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -1,8 +1,6 @@
-version: "3.9"
-   
 services:
   db:
-    image: postgres
+    image: postgres:14
     volumes:
       - database:/var/lib/postgresql/data
     environment:
@@ -17,12 +15,13 @@ services:
 
   web:
     build: .
-    command: >
-      sh -c "python manage.py collectstatic --noinput && python manage.py migrate && python manage.py runserver 0.0.0.0:8000"
     volumes:
       - .:/code
+      - /code/werkout-frontend/node_modules
+      - /code/werkout-frontend/.next
     ports:
-      - "8000:8000"
+      - "8001:8000"
+      - "3010:3000"
     environment:
       - POSTGRES_NAME=werkout
       - POSTGRES_USER=postgres
@@ -54,4 +53,4 @@ services:
       - web
 
 volumes:
-  database:
+  database: