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-fuzzy-simple.ts

@@ -0,0 +1,38 @@
+#!/usr/bin/env node
+
+import { N8NDocumentationMCPServer } from '../src/mcp/server';
+
+async function testSimple() {
+  const server = new N8NDocumentationMCPServer();
+  await new Promise(resolve => setTimeout(resolve, 1000));
+  
+  // Just test one query
+  const result = await server.executeTool('search_nodes', {
+    query: 'slak',
+    mode: 'FUZZY',
+    limit: 5
+  });
+  
+  console.log('Query: "slak" (FUZZY mode)');
+  console.log(`Results: ${result.results.length}`);
+  
+  if (result.results.length === 0) {
+    // Let's check with a lower threshold
+    const serverAny = server as any;
+    const slackNode = { 
+      node_type: 'nodes-base.slack', 
+      display_name: 'Slack', 
+      description: 'Consume Slack API' 
+    };
+    const score = serverAny.calculateFuzzyScore(slackNode, 'slak');
+    console.log(`\nSlack node score for "slak": ${score}`);
+    console.log('Current threshold: 400');
+    console.log('Should it match?', score >= 400 ? 'YES' : 'NO');
+  } else {
+    result.results.forEach((r: any, i: number) => {
+      console.log(`${i + 1}. ${r.displayName}`);
+    });
+  }
+}
+
+testSimple().catch(console.error);