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

scripts/test-docker.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+# scripts/test-docker.sh
+
+echo "🧪 Testing n8n-MCP Docker Deployment"
+
+# Test 1: Build simple image
+echo "1. Building simple Docker image..."
+docker build -t n8n-mcp:test .
+
+# Test 2: Test stdio mode
+echo "2. Testing stdio mode..."
+echo '{"jsonrpc":"2.0","method":"tools/list","id":1}' | \
+  docker run --rm -i -e MCP_MODE=stdio n8n-mcp:test
+
+# Test 3: Test HTTP mode
+echo "3. Testing HTTP mode..."
+docker run -d --name test-http \
+  -e MCP_MODE=http \
+  -e AUTH_TOKEN=test-token \
+  -p 3001:3000 \
+  n8n-mcp:test
+
+sleep 5
+
+# Check health
+curl -f http://localhost:3001/health || echo "Health check failed"
+
+# Test auth
+curl -H "Authorization: Bearer test-token" \
+     -H "Content-Type: application/json" \
+     -d '{"jsonrpc":"2.0","method":"tools/list","id":1}' \
+     http://localhost:3001/mcp
+
+docker stop test-http && docker rm test-http
+
+# Test 4: Volume persistence
+echo "4. Testing volume persistence..."
+docker volume create test-data
+docker run -d --name test-persist \
+  -v test-data:/app/data \
+  -e MCP_MODE=http \
+  -e AUTH_TOKEN=test \
+  -p 3002:3000 \
+  n8n-mcp:test
+
+sleep 10
+docker exec test-persist ls -la /app/data/nodes.db
+docker stop test-persist && docker rm test-persist
+docker volume rm test-data
+
+echo "✅ Docker tests completed!"