Add Docker infrastructure for dev and prod environments

- Separate PHP Dockerfiles (dev/prod) with extensions and prod opcache/php.ini optimization
- docker-compose-dev: PHP, PostgreSQL, Redis, Messenger, Mailpit, RedisInsight
- docker-compose-prod: 2x PHP replicas, PgSQL master/slave with PgBouncer, 2x Messenger, Redis
- Makefile with build/start/stop/purge commands
- AGENT.md to restrict AI access to the repository

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker-compose-dev.yml

@@ -0,0 +1,82 @@
+services:
+  php:
+    build:
+      context: ./docker/php/dev
+      dockerfile: Dockerfile
+    container_name: e-ticket_php
+    restart: unless-stopped
+    volumes:
+      - .:/app
+    ports:
+      - "9000:9000"
+    depends_on:
+      database:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+
+  database:
+    image: postgres:16-alpine
+    container_name: e-ticket_database
+    environment:
+      POSTGRES_USER: app
+      POSTGRES_PASSWORD: secret
+      POSTGRES_DB: e-ticket
+    ports:
+      - "5432:5432"
+    volumes:
+      - db-data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U app -d e-ticket"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  redis:
+    image: redis:7-alpine
+    container_name: e-ticket_redis
+    command: redis-server --requirepass e-ticket
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis-data:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "-a", "e-ticket", "ping"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  messenger:
+    build:
+      context: ./docker/php/dev
+      dockerfile: Dockerfile
+    container_name: e-ticket_messenger
+    command: php bin/console messenger:consume async -vv
+    restart: unless-stopped
+    volumes:
+      - .:/app
+    depends_on:
+      database:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+
+  mailpit:
+    image: axllent/mailpit
+    container_name: e-ticket_mailpit
+    ports:
+      - "1025:1025"
+      - "8025:8025"
+
+  redisinsight:
+    image: redis/redisinsight:latest
+    container_name: e-ticket_redisinsight
+    ports:
+      - "5540:5540"
+    depends_on:
+      redis:
+        condition: service_healthy
+
+volumes:
+  db-data:
+  redis-data: