Clean up workflows to keep only essential ones

- Keep only cloudflare-workers-test.yml for Cloudflare Workers testing
- Keep original workflows: clubhouse.yml, pull-reqeust.yml, sdk-reference.yaml
- Remove test-workflow.yml (temporary testing workflow)
- Rename cloudflare-jest-final.yml to cloudflare-workers-test.yml for clarity
- Update README to reflect cleaned up workflow structure

This provides a clean, focused set of workflows with the Cloudflare Workers Jest testing capability.

Author: cursoragent

.github/workflows/README.md

@@ -4,15 +4,20 @@ This directory contains GitHub Actions workflows for testing the Nylas Node.js S
 
 ## Workflows
 
-### `cloudflare-jest-final.yml` & `test-workflow.yml`
-**Final approach** - Jest test suite in Cloudflare Workers:
+### `cloudflare-workers-test.yml`
+**Cloudflare Workers Testing** - Jest test suite in Cloudflare Workers:
 - Runs our actual Jest test suite in Cloudflare Workers nodejs_compat environment
 - Tests the built SDK files (not source files) in production-like environment
 - Uses ESM (ECMAScript Modules) for better Cloudflare Workers compatibility
 - Tests locally using `wrangler dev` to simulate production environment
 - Validates optional types work correctly in Cloudflare Workers context
 - Optional deployment testing (requires secrets)
 
+### Existing Workflows
+- `clubhouse.yml` - Clubhouse integration
+- `pull-reqeust.yml` - Pull request workflow
+- `sdk-reference.yaml` - SDK reference documentation
+
 ## Why This Approach Works
 
 ### **Jest Test Suite in Cloudflare Workers**