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-debug-enhanced.js

@@ -0,0 +1,38 @@
+#!/usr/bin/env node
+
+const { EnhancedDocumentationFetcher } = require('../dist/utils/enhanced-documentation-fetcher');
+
+async function debugTest() {
+  console.log('=== Debug Enhanced Documentation ===\n');
+
+  const fetcher = new EnhancedDocumentationFetcher();
+
+  try {
+    await fetcher.ensureDocsRepository();
+    
+    // Test Slack documentation parsing
+    console.log('Testing Slack documentation...');
+    const slackDoc = await fetcher.getEnhancedNodeDocumentation('n8n-nodes-base.slack');
+    
+    if (slackDoc) {
+      console.log('\nSlack Documentation:');
+      console.log('- Operations found:', slackDoc.operations?.length || 0);
+      
+      // Show raw markdown around operations section
+      const operationsIndex = slackDoc.markdown.indexOf('## Operations');
+      if (operationsIndex > -1) {
+        console.log('\nRaw markdown around Operations section:');
+        console.log('---');
+        console.log(slackDoc.markdown.substring(operationsIndex, operationsIndex + 1000));
+        console.log('---');
+      }
+    }
+    
+  } catch (error) {
+    console.error('Error:', error);
+  } finally {
+    await fetcher.cleanup();
+  }
+}
+
+debugTest().catch(console.error);