feat: add smart-app-city sub-project architecture

- Architecture globale (React Native + NestJS + FastAPI)
- Beckn Protocol (OTN-DPI) integration docs
- AI layer: RAG pipeline + AI Agents (LocalAI + Qdrant)
- i18n: FR/EN/ES/DE support
- Docker Compose for backend services
- Project structure with frontend, backend, ai, beckn directories

smart-app-city/docker-compose.yml

@@ -0,0 +1,82 @@
+# Smart App City — Docker Compose
+
+version: "3.8"
+
+services:
+  # API Gateway
+  api-gateway:
+    build: ./backend/api-gateway
+    container_name: smartapp-gateway
+    ports:
+      - "8000:8000"
+    environment:
+      - KEYCLOAK_URL=http://openremote-keycloak:8080/auth
+      - LOCALAI_URL=http://localai-api:8080
+      - QDRANT_URL=http://qdrant:***
+      - REDIS_URL=redis://redis:6379
+    networks:
+      - smartcity-shared
+    restart: always
+
+  # RAG Service
+  rag-service:
+    build: ./ai/rag-service
+    container_name: smartapp-rag
+    ports:
+      - "8001:8001"
+    environment:
+      - LOCALAI_URL=http://localai-api:8080
+      - QDRANT_URL=http://qdrant:***
+      - EMBEDDING_MODEL=intfloat/multilingual-e5-large
+    networks:
+      - smartcity-shared
+    depends_on:
+      - api-gateway
+    restart: always
+
+  # Agent Service
+  agent-service:
+    build: ./ai/agent-service
+    container_name: smartapp-agent
+    ports:
+      - "8002:8002"
+    environment:
+      - LOCALAI_URL=http://localai-api:8080
+      - RAG_URL=http://rag-service:8001
+    networks:
+      - smartcity-shared
+    depends_on:
+      - rag-service
+    restart: always
+
+  # Qdrant (if not existing)
+  qdrant:
+    image: qdrant/qdrant:v1.9.0
+    container_name: smartapp-qdrant
+    ports:
+      - "6333:6333"
+    volumes:
+      - qdrant_data:/qdrant/storage
+    networks:
+      - smartcity-shared
+    restart: always
+
+  # Meilisearch (if not existing)
+  meilisearch:
+    image: getmeili/meilisearch:v1.7
+    container_name: smartapp-search
+    ports:
+      - "7700:7700"
+    volumes:
+      - meilisearch_data:/meili_data
+    networks:
+      - smartcity-shared
+    restart: always
+
+networks:
+  smartcity-shared:
+    external: true
+
+volumes:
+  qdrant_data:
+  meilisearch_data: