Add Twenty CRM 1-Click for Ubuntu 24.04

[scott]

Summary

• Adds a new twenty-24-04/ Packer builder for Twenty CRM on Ubuntu 24.04
• Deploys the official Docker Compose stack (server, worker, PostgreSQL 16, Redis) with Caddy HTTPS via Let's Encrypt short-lived IP certificates
• Generates per-droplet secrets on first boot and includes resilient startup handling for slow database initialization (TimeoutStartSec=600, Caddy reload before compose start, retry logic)

Test plan

• packer build twenty-24-04/template.json completed successfully (snapshot twenty-24-04-snapshot-1780075112)
• Deployed droplet from snapshot and verified HTTPS access at droplet IP
• Verified all four containers start after first-boot fixes (db, redis, server, worker)
• Marketplace QA: complete Twenty workspace setup wizard on a fresh droplet
• Verify avatar/file upload on a 2GB+ droplet under normal load