feat: implement AI-optimized MCP tools with 95% size reduction

- Add get_node_essentials tool for 10-20 essential properties only
- Add search_node_properties for targeted property search
- Add get_node_for_task with 14 pre-configured templates
- Add validate_node_config for comprehensive validation
- Add get_property_dependencies for visibility analysis
- Implement PropertyFilter service with curated essentials
- Implement ExampleGenerator with working examples
- Implement TaskTemplates for common workflows
- Implement ConfigValidator with security checks
- Implement PropertyDependencies for dependency analysis
- Enhance property descriptions to 100% coverage
- Add version information to essentials response
- Update documentation with new tools

Response sizes reduced from 100KB+ to <5KB for better AI agent usability.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

scripts/debug-node.js

@@ -0,0 +1,56 @@
+#!/usr/bin/env node
+/**
+ * Debug script to check node data structure
+ */
+
+const { N8NDocumentationMCPServer } = require('../dist/mcp/server-update');
+
+async function debugNode() {
+  console.log('🔍 Debugging node data\n');
+  
+  try {
+    // Initialize server
+    const server = new N8NDocumentationMCPServer();
+    await new Promise(resolve => setTimeout(resolve, 1000));
+    
+    // Get node info directly
+    const nodeType = 'nodes-base.httpRequest';
+    console.log(`Checking node: ${nodeType}\n`);
+    
+    try {
+      const nodeInfo = await server.executeTool('get_node_info', { nodeType });
+      
+      console.log('Node info retrieved successfully');
+      console.log('Node type:', nodeInfo.nodeType);
+      console.log('Has properties:', !!nodeInfo.properties);
+      console.log('Properties count:', nodeInfo.properties?.length || 0);
+      console.log('Has operations:', !!nodeInfo.operations);
+      console.log('Operations:', nodeInfo.operations);
+      console.log('Operations type:', typeof nodeInfo.operations);
+      console.log('Operations length:', nodeInfo.operations?.length);
+      
+      // Check raw data
+      console.log('\n📊 Raw data check:');
+      console.log('properties_schema type:', typeof nodeInfo.properties_schema);
+      console.log('operations type:', typeof nodeInfo.operations);
+      
+      // Check if operations is a string that needs parsing
+      if (typeof nodeInfo.operations === 'string') {
+        console.log('\nOperations is a string, trying to parse:');
+        console.log('Operations string:', nodeInfo.operations);
+        console.log('Operations length:', nodeInfo.operations.length);
+        console.log('First 100 chars:', nodeInfo.operations.substring(0, 100));
+      }
+      
+    } catch (error) {
+      console.error('Error getting node info:', error);
+    }
+    
+  } catch (error) {
+    console.error('Fatal error:', error);
+  }
+  
+  process.exit(0);
+}
+
+debugNode().catch(console.error);