chore: update n8n to v1.101.1

- Updated n8n from 1.100.1 to 1.101.1
- Updated n8n-core from 1.99.0 to 1.100.0
- Updated n8n-workflow from 1.97.0 to 1.98.0
- Updated @n8n/n8n-nodes-langchain from 1.99.0 to 1.100.1
- Rebuilt node database with 528 nodes
- All validation tests passing
- Bumped version to 2.7.12

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

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

scripts/test-http-search.ts

@@ -0,0 +1,46 @@
+#\!/usr/bin/env node
+
+import { N8NDocumentationMCPServer } from '../src/mcp/server';
+
+async function testHttpSearch() {
+  const server = new N8NDocumentationMCPServer();
+  await new Promise(resolve => setTimeout(resolve, 1000));
+  
+  console.log('Testing search for "http"...\n');
+  
+  const result = await server.executeTool('search_nodes', {
+    query: 'http',
+    limit: 50 // Get more results to see where HTTP Request is
+  });
+  
+  console.log(`Total results: ${result.results.length}\n`);
+  
+  // Find HTTP Request node in results
+  const httpRequestIndex = result.results.findIndex((r: any) => 
+    r.nodeType === 'nodes-base.httpRequest'
+  );
+  
+  if (httpRequestIndex === -1) {
+    console.log('❌ HTTP Request node NOT FOUND in results\!');
+  } else {
+    console.log(`✅ HTTP Request found at position ${httpRequestIndex + 1}`);
+  }
+  
+  console.log('\nTop 10 results:');
+  result.results.slice(0, 10).forEach((r: any, i: number) => {
+    console.log(`${i + 1}. ${r.nodeType} - ${r.displayName}`);
+  });
+  
+  // Also check LIKE search directly
+  console.log('\n\nTesting LIKE search fallback:');
+  const serverAny = server as any;
+  const likeResult = await serverAny.searchNodesLIKE('http', 20);
+  
+  console.log(`LIKE search found ${likeResult.results.length} results`);
+  console.log('Top 5 LIKE results:');
+  likeResult.results.slice(0, 5).forEach((r: any, i: number) => {
+    console.log(`${i + 1}. ${r.nodeType} - ${r.displayName}`);
+  });
+}
+
+testHttpSearch().catch(console.error);