feat(apps): add Shoutrrr to one-click app catalog (#512)

[thisisrakshith]

Summary

Resolves #512

Adds Shoutrrr as a one-click template application in the Openship Apps catalog.

Shoutrrr is an open-source social media scheduling and publishing platform (alternative to Buffer, Typefully, and Hootsuite) by CoolLabs.

Changes

• App Template: Added packages/core/src/apps/catalog/shoutrrr.json configured with:
  • Official image ghcr.io/coollabsio/shoutrrr:latest
  • Exposed FrankenPHP Octane port 8080
  • Auto-generated APP_KEY secret config field
  • Persistent SQLite (shoutrrr_sqlite) and storage (shoutrrr_storage) volumes
  • Octane reverse-proxy headers and secure cookie configuration
  • Curated settings for application name, queue worker count, SSR, and OAuth
• Merged Catalog: Regenerated packages/core/src/apps/catalog.json
• Branding: Registered shoutrrr in AppLogo.tsx and vendored apps/dashboard/public/app-logos/shoutrrr.png

References

• Issue: Add Shoutrrr to the apps catalog #512
• Website: https://shoutrrr.com/
• Repository: https://github.com/coollabsio/shoutrrr
• Docker Compose: https://github.com/coollabsio/shoutrrr/blob/main/docker-compose.production.yaml

[adiologydev]

Hey there, I'm the maintainer of Shoutrrr from coolLabs! Let me know if you need any help with this :) Cheers!