Add monorepo configuration and development environment

.devcontainer/Dockerfile

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+FROM node:18-bullseye
+
+# Install additional tools including Ionic CLI
+RUN apt-get update && apt-get install -y \
+    git \
+    curl \
+    vim \
+    mongodb-clients \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install global npm packages for development
+RUN npm install -g \
+    @ionic/cli \
+    @angular/cli \
+    nodemon \
+    concurrently \
+    eslint \
+    prettier
+
+# Set working directory
+WORKDIR /workspaces/PfosiLooking
+
+# Copy package files for dependency caching
+COPY package*.json ./
+COPY app/package*.json ./app/
+COPY backend/package*.json ./backend/
+
+# Install dependencies
+RUN npm install
+RUN cd app && npm install
+RUN cd backend && npm install
+
+# Keep container running
+CMD ["sleep", "infinity"]

.devcontainer/dev.env

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+NODE_ENV=development
+MONGODB_URI=mongodb://admin:password@localhost:27017/urge?authSource=admin
+JWT_SECRET=your-dev-jwt-secret-here
+PORT=3069
+REACT_APP_API_URL=http://localhost:3069
+
+# MongoDB
+MONGO_ROOT_USER=admin
+MONGO_ROOT_PASSWORD=password
+MONGO_EXPRESS_USER=admin
+MONGO_EXPRESS_PASSWORD=password
+
+# Optional API keys for development
+GOOGLE_MAPS_API_KEY=your-google-maps-api-key
+MAIL_HOST=smtp.gmail.com
+MAIL_PORT=587
+MAIL_USER=your-email@gmail.com
+MAIL_PASS=your-email-password

.devcontainer/devcontainer.json

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+{
+  "name": "PfosiLooking Full Stack",
+  "dockerComposeFile": "docker-compose.yml",
+  "service": "app",
+  "workspaceFolder": "/workspaces/PfosiLooking",
+  "shutdownAction": "stopCompose",
+  "features": {
+    "ghcr.io/devcontainers/features/node:1": {
+      "version": "18"
+    },
+    "ghcr.io/devcontainers/features/git:1": {},
+    "ghcr.io/devcontainers/features/github-cli:1": {}
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-vscode.vscode-json",
+        "bradlc.vscode-tailwindcss",
+        "esbenp.prettier-vscode",
+        "dbaeumer.vscode-eslint",
+        "ms-vscode.vscode-typescript-next",
+        "formulahendry.auto-rename-tag",
+        "christian-kohler.path-intellisense",
+        "ms-vscode.vscode-json",
+        "mongodb.mongodb-vscode"
+      ],
+      "settings": {
+        "editor.formatOnSave": true,
+        "editor.defaultFormatter": "esbenp.prettier-vscode",
+        "editor.codeActionsOnSave": {
+          "source.fixAll.eslint": true
+        },
+        "emmet.includeLanguages": {
+          "javascript": "javascriptreact"
+        }
+      }
+    }
+  },
+  "forwardPorts": [8100, 3069, 27017, 8081],
+  "portsAttributes": {
+    "8100": {
+      "label": "Frontend (Ionic)",
+      "onAutoForward": "notify"
+    },
+    "3069": {
+      "label": "Backend API",
+      "onAutoForward": "notify"
+    },
+    "27017": {
+      "label": "MongoDB",
+      "onAutoForward": "silent"
+    },
+    "8081": {
+      "label": "Mongo Express",
+      "onAutoForward": "notify"
+    }
+  },
+  "postCreateCommand": "npm install && cd app && npm install && cd ../backend && npm install",
+  "postStartCommand": "npm run dev:all"
+}

.devcontainer/docker-compose.yml

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+version: "3.8"
+
+services:
+  app:
+    build:
+      context: ..
+      dockerfile: .devcontainer/Dockerfile
+    volumes:
+      - ../..:/workspaces:cached
+      - /workspaces/PfosiLooking/app/node_modules
+      - /workspaces/PfosiLooking/backend/node_modules
+    command: sleep infinity
+    environment:
+      - NODE_ENV=development
+      - MONGODB_URI=mongodb://mongo:27017/urge
+      - REACT_APP_API_URL=http://localhost:3069
+      - PORT=3069
+      - IONIC_PORT=8100
+    env_file:
+      - dev.env
+    networks:
+      - dev-network
+    depends_on:
+      mongo:
+        condition: service_healthy
+
+  mongo:
+    image: mongo:4.4
+    restart: unless-stopped
+    environment:
+      - MONGO_INITDB_DATABASE=urge
+      - MONGO_INITDB_ROOT_USERNAME=admin
+      - MONGO_INITDB_ROOT_PASSWORD=password
+    ports:
+      - "27017:27017"
+    networks:
+      - dev-network
+    volumes:
+      - mongo_data:/data/db
+      - ../backend/data:/docker-entrypoint-initdb.d:ro
+    healthcheck:
+      test: echo 'db.runCommand("ping").ok' | mongo localhost:27017/urge --quiet
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
+  mongo-express:
+    image: mongo-express:latest
+    restart: unless-stopped
+    environment:
+      - ME_CONFIG_MONGODB_SERVER=mongo
+      - ME_CONFIG_MONGODB_PORT=27017
+      - ME_CONFIG_MONGODB_ADMINUSERNAME=admin
+      - ME_CONFIG_MONGODB_ADMINPASSWORD=password
+      - ME_CONFIG_BASICAUTH_USERNAME=admin
+      - ME_CONFIG_BASICAUTH_PASSWORD=password
+    ports:
+      - "8081:8081"
+    networks:
+      - dev-network
+    depends_on:
+      - mongo
+
+volumes:
+  mongo_data:
+
+networks:
+  dev-network:
+    driver: bridge