feat: Complete overhaul to enhanced documentation-only MCP server

- Removed all workflow execution capabilities per user requirements
- Implemented enhanced documentation extraction with operations and API mappings
- Fixed credential code extraction for all nodes
- Fixed package info extraction (name and version)
- Enhanced operations parser to handle n8n markdown format
- Fixed documentation search to prioritize app nodes over trigger nodes
- Comprehensive test coverage for Slack node extraction
- All node information now includes:
  - Complete operations list (42 for Slack)
  - API method mappings with documentation URLs
  - Source code and credential definitions
  - Package metadata
  - Related resources and templates

🤖 Generated with Claude Code

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

tests/test-package-info.js

@@ -0,0 +1,30 @@
+#!/usr/bin/env node
+
+const { NodeSourceExtractor } = require('../dist/utils/node-source-extractor');
+
+async function testPackageInfo() {
+  console.log('🧪 Testing Package Info Extraction\n');
+  
+  const extractor = new NodeSourceExtractor();
+  
+  const testNodes = [
+    'n8n-nodes-base.Slack',
+    'n8n-nodes-base.HttpRequest',
+    'n8n-nodes-base.Function'
+  ];
+  
+  for (const nodeType of testNodes) {
+    console.log(`\n📦 Testing ${nodeType}:`);
+    try {
+      const result = await extractor.extractNodeSource(nodeType);
+      console.log(`  - Source Code: ${result.sourceCode ? '✅' : '❌'} (${result.sourceCode?.length || 0} bytes)`);
+      console.log(`  - Credential Code: ${result.credentialCode ? '✅' : '❌'} (${result.credentialCode?.length || 0} bytes)`);
+      console.log(`  - Package Name: ${result.packageInfo?.name || '❌ undefined'}`);
+      console.log(`  - Package Version: ${result.packageInfo?.version || '❌ undefined'}`);
+    } catch (error) {
+      console.log(`  ❌ Error: ${error.message}`);
+    }
+  }
+}
+
+testPackageInfo().catch(console.error);