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>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "n8n-mcp",
-  "version": "2.7.11",
+  "version": "2.7.12",
   "description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
   "main": "dist/index.js",
   "bin": {
@@ -93,14 +93,14 @@
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "^1.13.2",
-    "@n8n/n8n-nodes-langchain": "^1.99.0",
+    "@n8n/n8n-nodes-langchain": "^1.100.1",
     "axios": "^1.10.0",
     "better-sqlite3": "^11.10.0",
     "dotenv": "^16.5.0",
     "express": "^5.1.0",
-    "n8n": "^1.100.1",
-    "n8n-core": "^1.99.0",
-    "n8n-workflow": "^1.97.0",
+    "n8n": "^1.101.1",
+    "n8n-core": "^1.100.0",
+    "n8n-workflow": "^1.98.0",
     "sql.js": "^1.13.0",
     "uuid": "^10.0.0"
   }