Add troubleshooting instructions for ERR_REQUIRE_ESM (#43)

Author: traylollipop

README.md

@@ -103,6 +103,10 @@ npx @better-auth-cloudflare/cli@latest migrate --migrate-target=prod   # Non-int
 
 The CLI creates projects from Hono or Next.js templates and can automatically set up D1, KV, R2, and Hyperdrive resources. See [CLI Documentation](./cli/README.md) for full documentation and all available arguments.
 
+**Troubleshooting**:
+
+If you encounter this error when using the CLI: `...Error [ERR_REQUIRE_ESM]: require() of ES Module...`, make sure your node version is at least `v23.0.0`, `v22.12.0`, or `v20.19.0`, depending on the major version you use. Read more [here](https://nodejs.org/api/modules.html#loading-ecmascript-modules-using-require)
+
 ## Manual Installation
 
 ```bash

cli/README.md

@@ -186,6 +186,14 @@ npx @better-auth-cloudflare/cli migrate --migrate-target=dev
 
 Creates a new Better Auth Cloudflare project from Hono or OpenNext.js templates, optionally creating Cloudflare D1, KV, R2, or Hyperdrive resources for you. The migrate command runs `auth:update`, `db:generate`, and optionally `db:migrate`.
 
+## Troubleshooting
+
+**Error `...Error [ERR_REQUIRE_ESM]: require() of ES Module...`**:
+
+Loading ECMAScript modules using `require()` should be supported by your nodejs.
+Make sure your node version is at least `v23.0.0`, `v22.12.0`, or `v20.19.0`, depending on the major version you use. 
+Read more [here](https://nodejs.org/api/modules.html#loading-ecmascript-modules-using-require)
+
 ## Related
 
 - 📦 **[better-auth-cloudflare](https://github.com/zpg6/better-auth-cloudflare)** - Main package and documentation