feat(Core/Docker): production deploy configuration

- docker-compose.prod.yml: MySQL tuning (innodb_buffer_pool=4G),
  resource limits, log rotation
- scripts/prod-deploy.sh: production startup script mirroring
  start-server.sh sequence with pre-flight checks and sysctl tuning
- conf/dist/env.production: production environment variable template

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker-compose.prod.yml

@@ -0,0 +1,45 @@
+services:
+  ac-database:
+    command: >
+      --innodb_buffer_pool_size=4G
+      --innodb_log_file_size=512M
+      --innodb_flush_log_at_trx_commit=2
+      --innodb_flush_method=O_DIRECT
+      --max_connections=300
+      --query_cache_size=0
+      --query_cache_type=0
+      --slow_query_log=1
+      --long_query_time=2
+    deploy:
+      resources:
+        limits:
+          cpus: '2'
+          memory: 5G
+
+  ac-worldserver:
+    deploy:
+      resources:
+        limits:
+          cpus: '6'
+          memory: 6G
+    ulimits:
+      nofile:
+        soft: 65536
+        hard: 65536
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "100m"
+        max-file: "5"
+
+  ac-authserver:
+    deploy:
+      resources:
+        limits:
+          cpus: '1'
+          memory: 512M
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "50m"
+        max-file: "3"