docs: Restructure README with SaaS-first onboarding flow

Denis Morozovrequested to merge
feature/readme-screencast-update into main

Summary

  • Rename "Quick start" to "Get Started" with auth-first steps (sign up → auth → checkup → view results)
  • Add "Issues workflow" bullet to "Why postgresai?" section
  • Create separate "Express Checkup" section for CLI details and offline mode
  • Move tips content into relevant sections
  • Change sign up link to postgres.ai (API key link stays console.postgres.ai)
  • Keep offline mode (--no-upload) documented but as secondary option

Test plan

  • Read through README as a first-time user
  • Verify all links work
  • Confirm offline/self-hosted path is still documented

🤖 Generated with Claude Code

Edited by Nikolay Samokhvalov

Merge request reports