Test blog post - do not publish to production

This is a test post to verify the auto-publish workflow is working correctly. ## Test content - Title: Test Post - Auto Publish Workflow Verification - Status: Should be published automatically by cron job - Destination: `realfaster_web.blog_posts` table with `status='published'` ## Expected behavior 1. Script reads this file from `pending_post.txt` 2. Authenticates to Supabase with marketing agent credentials 3. POSTs to `https://wwevdsijedreuxqnbtyt.supabase.co/rest/v1/blog_posts` 4. Sets `Content-Profile: realfaster_web` header for schema routing 5. Deletes `pending_post.txt` after successful publish