Introduces scalable Docker Compose deployment

Establishes a multi-service Docker Compose setup for the application, including a Traefik reverse proxy, a MySQL database, and a scalable API service.

Adds a comprehensive MySQL database schema for bug reports, file storage, rate limiting, user management, and sessions.

Improves application startup reliability by implementing a "wait-for-MySQL" script, ensuring the API service initializes only after the database is available. This script is integrated into the Dockerfile and package.json.

Enhances the API service with instance-specific logging, a more informative health endpoint, and an increased maximum request body size (50MB). Database migration failures are now gracefully handled.

compose.yml

@@ -1,7 +1,42 @@
 services:
-  api:
+  reverse-proxy:
+    image: traefik:latest
+    command:
+      - "--api.insecure=true"
+      - "--providers.docker"
+      - "--providers.docker.exposedbydefault=false"
+      - "--entrypoints.web.address=:80"
+    ports:
+      - "80:80"
+      - "8080:8080"
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+    labels:
+      - "traefik.enable=false"
+
+  emly-mysql-db:
+    image: mysql:lts
+    labels:
+      - "traefik.enable=false"
+    environment:
+      MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD}
+      MYSQL_USER: ${MYSQL_USER:-emly}
+      MYSQL_PASSWORD: ${MYSQL_PASSWORD}
+      MYSQL_DATABASE: ${MYSQL_DATABASE:-emly_bugreports}
+    volumes:
+      - mysql-data:/var/lib/mysql
+      - ./init:/docker-entrypoint-initdb.d
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  emly-api:
     build: .
     environment:
+      INSTANCE_ID: ${HOSTNAME}
       MYSQL_HOST: ${MYSQL_HOST:-mysql}
       MYSQL_PORT: ${MYSQL_PORT:-3306}
       MYSQL_USER: ${MYSQL_USER:-emly}
@@ -13,5 +48,26 @@ services:
       RATE_LIMIT_MAX: ${RATE_LIMIT_MAX:-5}
       RATE_LIMIT_WINDOW_HOURS: ${RATE_LIMIT_WINDOW_HOURS:-24}
     volumes:
-      - ./logs/api:/app/logs
-    restart: on-failure
+      - emly-api-logs:/app/logs
+    restart: unless-stopped
+    deploy:
+      mode: replicated
+      replicas: 3
+      resources:
+        limits:
+          cpus: '1'
+          memory: 1024M
+        reservations:
+          cpus: '0.5'
+          memory: 512M
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.emly-api.entrypoints=web"
+      - "traefik.http.routers.emly-api.rule=PathPrefix(`/`)"
+      - "traefik.http.services.emly-api.loadbalancer.server.port=3000"
+    depends_on:
+      - emly-mysql-db
+
+volumes:
+  mysql-data:
+  emly-api-logs: