feat: integrate figlet-fonts statically and migrate to Coolify deployment

- Add 373 figlet fonts from xero/figlet-fonts as static assets
- Remove GitHub Actions workflow (now using Coolify + webhooks)
- Update .gitignore to track fonts in repository

This eliminates the need to clone fonts at build time and simplifies deployment.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

public/fonts/figlet-fonts/hz.flc

@@ -0,0 +1,4 @@
+flc2a
+# Set HZ input mode (a 7-bit encoding of GB Chinese text)
+# Meaningful only to FIGlet 2.2 beta 4 or better
+h