feat: add node extraction scripts and Docker setup for n8n modules

scripts/extract-nodes-simple.sh

@@ -0,0 +1,108 @@
+#!/bin/bash
+set -e
+
+echo "🐳 Simple n8n Node Extraction via Docker"
+echo "======================================="
+
+# Colors for output
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+# Function to print colored output
+print_status() {
+    echo -e "${GREEN}[$(date +'%H:%M:%S')]${NC} $1"
+}
+
+print_warning() {
+    echo -e "${YELLOW}[$(date +'%H:%M:%S')]${NC} ⚠️  $1"
+}
+
+print_error() {
+    echo -e "${RED}[$(date +'%H:%M:%S')]${NC} ❌ $1"
+}
+
+# Check if Docker is running
+if ! docker info > /dev/null 2>&1; then
+    print_error "Docker is not running. Please start Docker and try again."
+    exit 1
+fi
+
+print_status "Docker is running ✅"
+
+# Build the project first
+print_status "Building the project..."
+npm run build
+
+# Create a temporary directory for extraction
+TEMP_DIR=$(mktemp -d)
+print_status "Created temporary directory: $TEMP_DIR"
+
+# Run Docker container to copy node files
+print_status "Running n8n container to extract nodes..."
+docker run --rm -d --name n8n-temp n8nio/n8n:latest sleep 300
+
+# Wait a bit for container to start
+sleep 5
+
+# Copy n8n modules from container
+print_status "Copying n8n modules from container..."
+docker cp n8n-temp:/usr/local/lib/node_modules/n8n/node_modules "$TEMP_DIR/node_modules" || {
+    print_error "Failed to copy node_modules"
+    docker stop n8n-temp
+    rm -rf "$TEMP_DIR"
+    exit 1
+}
+
+# Stop the container
+docker stop n8n-temp
+
+# Run our extraction script locally
+print_status "Running extraction script..."
+NODE_ENV=development \
+NODE_DB_PATH=./data/nodes-fresh.db \
+N8N_MODULES_PATH="$TEMP_DIR/node_modules" \
+node scripts/extract-from-docker.js
+
+# Clean up
+print_status "Cleaning up temporary files..."
+rm -rf "$TEMP_DIR"
+
+# Check the results
+print_status "Checking extraction results..."
+if [ -f "./data/nodes-fresh.db" ]; then
+    NODE_COUNT=$(sqlite3 ./data/nodes-fresh.db "SELECT COUNT(*) FROM nodes;" 2>/dev/null || echo "0")
+    print_status "Extracted $NODE_COUNT nodes"
+    
+    # Check if we got the If node source code and look for version
+    IF_SOURCE=$(sqlite3 ./data/nodes-fresh.db "SELECT source_code FROM nodes WHERE node_type='n8n-nodes-base.If' LIMIT 1;" 2>/dev/null || echo "")
+    if [[ $IF_SOURCE =~ version:[[:space:]]*([0-9]+) ]]; then
+        IF_CODE_VERSION="${BASH_REMATCH[1]}"
+        print_status "If node version from source code: v$IF_CODE_VERSION"
+        
+        if [ "$IF_CODE_VERSION" -ge "2" ]; then
+            print_status "✅ Successfully extracted latest If node (v$IF_CODE_VERSION)!"
+        else
+            print_warning "If node is still v$IF_CODE_VERSION, expected v2 or higher"
+        fi
+    fi
+else
+    print_error "Database file not found after extraction"
+fi
+
+print_status "✨ Extraction complete!"
+
+# Offer to restart the MCP server
+echo ""
+read -p "Would you like to restart the MCP server with the new nodes? (y/n) " -n 1 -r
+echo ""
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    print_status "Restarting MCP server..."
+    # Kill any existing server process
+    pkill -f "node.*dist/index.js" || true
+    
+    # Start the server
+    npm start &
+    print_status "MCP server restarted with fresh node database"
+fi