feat: add comprehensive Docker support with multi-stage builds and compose configurations

.env.docker

@@ -0,0 +1,23 @@
+# .env.docker
+# Docker-specific environment template
+# Copy to .env and fill in values
+
+# Required for HTTP mode
+AUTH_TOKEN=
+
+# Server configuration
+PORT=3000
+HTTP_PORT=80
+HTTPS_PORT=443
+
+# Application settings
+NODE_ENV=production
+LOG_LEVEL=info
+MCP_MODE=http
+
+# Database
+NODE_DB_PATH=/app/data/nodes.db
+REBUILD_ON_START=false
+
+# Optional nginx mode
+USE_NGINX=false