feat(integrations): add n8n community node for Mem0

Programmatic n8n node (n8n-nodes-mem0) with Add/Search/Get Many/Get/
Update/Delete memory operations against the Mem0 v3 API, plus API-key
credentials and usableAsTool support for the AI Agent node.

Add uses POST /v3/memories/add/ and polls GET /v1/event/{id}/ until the
async extraction resolves. No runtime dependencies (n8n verification
requirement); calls the REST API directly. MIT licensed per-package.

integrations/n8n-nodes-mem0/gulpfile.js

@@ -0,0 +1,14 @@
+const path = require('path');
+const { task, src, dest } = require('gulp');
+
+task('build:icons', copyIcons);
+
+function copyIcons() {
+	const nodeSource = path.resolve('nodes', '**', '*.{png,svg}');
+	const nodeDestination = path.resolve('dist', 'nodes');
+	src(nodeSource).pipe(dest(nodeDestination));
+
+	const credSource = path.resolve('credentials', '**', '*.{png,svg}');
+	const credDestination = path.resolve('dist', 'credentials');
+	return src(credSource, { allowEmpty: true }).pipe(dest(credDestination));
+}