Initial commit: Dimension47 project setup

- NestJS backend with JWT auth, Prisma ORM, Swagger docs
- Vite + React 19 frontend with TypeScript
- Tailwind CSS v4 with custom dark theme design system
- Auth module: Login, Register, Protected routes
- Campaigns module: CRUD, Member management
- Full Prisma schema for PF2e campaign management
- Docker Compose for PostgreSQL

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,31 @@
+version: '3.8'
+
+services:
+  postgres:
+    image: postgres:16-alpine
+    container_name: dimension47-db
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: dimension47
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    restart: unless-stopped
+
+  # Optional: pgAdmin for database management
+  pgadmin:
+    image: dpage/pgadmin4
+    container_name: dimension47-pgadmin
+    environment:
+      PGADMIN_DEFAULT_EMAIL: admin@dimension47.local
+      PGADMIN_DEFAULT_PASSWORD: admin
+    ports:
+      - "5050:80"
+    depends_on:
+      - postgres
+    restart: unless-stopped
+
+volumes:
+  postgres_data: