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/.eslintrc.js

@@ -0,0 +1,25 @@
+module.exports = {
+	root: true,
+	env: { browser: true, es6: true, node: true },
+	parser: '@typescript-eslint/parser',
+	parserOptions: { sourceType: 'module', extraFileExtensions: ['.json'] },
+	ignorePatterns: ['.eslintrc.js', '**/*.js', '**/node_modules/**', '**/dist/**'],
+	overrides: [
+		{
+			files: ['package.json'],
+			plugins: ['eslint-plugin-n8n-nodes-base'],
+			extends: ['plugin:n8n-nodes-base/community'],
+			rules: { 'n8n-nodes-base/community-package-json-name-still-default': 'off' },
+		},
+		{
+			files: ['./credentials/**/*.ts'],
+			plugins: ['eslint-plugin-n8n-nodes-base'],
+			extends: ['plugin:n8n-nodes-base/credentials'],
+		},
+		{
+			files: ['./nodes/**/*.ts'],
+			plugins: ['eslint-plugin-n8n-nodes-base'],
+			extends: ['plugin:n8n-nodes-base/nodes'],
+		},
+	],
+};