feat: complete monorepo structure with frontend and shared resources

- Add complete backend/ directory with full Django application
- Add frontend/ directory with Vite + TypeScript setup ready for Next.js
- Add comprehensive shared/ directory with:
  - Complete documentation and memory-bank archives
  - Media files and avatars (letters, park/ride images)
  - Deployment scripts and automation tools
  - Shared types and utilities
- Add architecture/ directory with migration guides
- Configure pnpm workspace for monorepo development
- Update .gitignore to exclude .django_tailwind_cli/ build artifacts
- Preserve all historical documentation in shared/docs/memory-bank/
- Set up proper structure for full-stack development with shared resources

shared/docs/memory-bank/decisions/test-fixes-2024-02-22.md

@@ -0,0 +1,28 @@
+# Test Fixes Required - 2024-02-22
+
+## Issues Identified
+
+### 1. ParkArea Unique Constraint Test (IntegrityError)
+- **Problem**: Test expects ValidationError but gets IntegrityError
+- **Root Cause**: Database constraint violation instead of model validation
+- **Fix**: Update test to expect IntegrityError or add model validation
+
+### 2. Numeric Filtering Test (min_rides filter)
+- **Problem**: Filter not working correctly for min_rides=18
+- **Root Cause**: Likely issue with ride count calculation or filter logic
+- **Fix**: Check ParkFilter implementation and ride count logic
+
+### 3. Historical Slug Lookup Test (is_historical flag)
+- **Problem**: is_historical returning False instead of True for old slug
+- **Root Cause**: get_by_slug method not correctly identifying historical slugs
+- **Fix**: Review ParkArea.get_by_slug implementation
+
+## Priority Order
+1. Fix unique constraint test (quick fix)
+2. Fix historical slug lookup (core functionality)
+3. Fix numeric filtering (search feature)
+
+## Next Steps
+- Fix tests one by one
+- Run test suite after each fix
+- Document any model changes needed