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

package.json

@@ -0,0 +1,29 @@
+{
+  "name": "thrillwiki-monorepo",
+  "version": "1.0.0",
+  "description": "ThrillWiki Django + Vue.js Monorepo",
+  "private": true,
+  "packageManager": "pnpm@9.0.0",
+  "workspaces": [
+    "frontend"
+  ],
+  "scripts": {
+    "dev": "concurrently \"pnpm run dev:backend\" \"pnpm run dev:frontend\"",
+    "dev:backend": "cd backend && uv run manage.py runserver",
+    "dev:frontend": "cd frontend && pnpm run dev",
+    "build": "pnpm run build:frontend && cd backend && uv run manage.py collectstatic --noinput",
+    "build:frontend": "cd frontend && pnpm run build",
+    "test": "pnpm run test:backend && pnpm run test:frontend",
+    "test:backend": "cd backend && uv run manage.py test",
+    "test:frontend": "cd frontend && pnpm run test",
+    "lint": "cd frontend && pnpm run lint && cd ../backend && uv run flake8 .",
+    "format": "cd frontend && pnpm run format && cd ../backend && uv run black ."
+  },
+  "devDependencies": {
+    "concurrently": "^8.2.2"
+  },
+  "engines": {
+    "node": ">=18.0.0",
+    "pnpm": ">=8.0.0"
+  }
+}