fix(zapier): add root index.js entry shim so deployed app resolves (#6789)

integrations/zapier-mem0/index.js

@@ -0,0 +1,3 @@
+// Zapier's Lambda wrapper requires `<root>/index.js` and ignores package.json
+// "main", so re-export the compiled app from the root. Run `npm run build` first.
+module.exports = require('./dist/index.js');

integrations/zapier-mem0/package.json

@@ -20,7 +20,7 @@
     "directory": "integrations/zapier-mem0"
   },
   "license": "Apache-2.0",
-  "main": "dist/index.js",
+  "main": "index.js",
   "scripts": {
     "build": "tsc",
     "test": "jest --testTimeout 180000",