feat: initial KosmoConnect platform v0.1

Includes:
- Backend services: ingestion (:8001), weather API (:8002),
  gateway (:8003), billing (:8004) with BTCPay integration
- Shared asyncpg pool, TimescaleDB hypertable, Redis, Mosquitto MQTT
- React frontend: Dashboard (MapLibre) and Messaging (chat UI)
- Bridge daemon for Pi + Meshtastic (Serial/TCP T-Deck support)
- Production Docker Compose, Nginx reverse proxy, ops scripts
- DEPLOY.md with step-by-step deployment guide

backend/docker-compose.yml

@@ -0,0 +1,56 @@
+services:
+  timescaledb:
+    image: timescale/timescaledb:latest-pg15
+    container_name: kosmo_timescaledb
+    environment:
+      POSTGRES_USER: kosmo
+      POSTGRES_PASSWORD: kosmo_dev_pass
+      POSTGRES_DB: kosmoconnect
+    ports:
+      - "5432:5432"
+    volumes:
+      - timescale_data:/var/lib/postgresql/data
+      - ./migrations:/docker-entrypoint-initdb.d
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U kosmo -d kosmoconnect"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  redis:
+    image: redis:7-alpine
+    container_name: kosmo_redis
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+
+  rabbitmq:
+    image: rabbitmq:3-management-alpine
+    container_name: kosmo_rabbitmq
+    ports:
+      - "5672:5672"
+      - "15672:15672"
+    environment:
+      RABBITMQ_DEFAULT_USER: kosmo
+      RABBITMQ_DEFAULT_PASS: kosmo_dev_pass
+    volumes:
+      - rabbitmq_data:/var/lib/rabbitmq
+
+  mosquitto:
+    image: eclipse-mosquitto:2
+    container_name: kosmo_mosquitto
+    ports:
+      - "1883:1883"
+      - "9001:9001"
+    volumes:
+      - ./mosquitto.conf:/mosquitto/config/mosquitto.conf
+      - mosquitto_data:/mosquitto/data
+      - mosquitto_logs:/mosquitto/log
+
+volumes:
+  timescale_data:
+  redis_data:
+  rabbitmq_data:
+  mosquitto_data:
+  mosquitto_logs: