Medusa .PAX Support

Medusa introduces .pax extension alongside .html.

PAXLoader:

Custom Jinja loader that: - Tries landing.html first - If not found, tries landing.pax - If .pax requested, tries .html - Searches subfolders recursively - No hardcode layout path!

Why .pax?

• Cleaner separation for tester
• Can have medusa/landing.html and medusa/landing.pax both valid
• For Medusa tester we use .pax to keep new version clean
• Old Nyiblorong still uses .html - both work!

Example:

templates/
├── medusa/
│   ├── landing.html  # Medusa version
│   └── landing.pax   # Same but .pax tester
├── nyiblorong/
│   └── blog.html
└── post.html

In content/index.md:

layout: medusa/landing  # will find .html or .pax automatically!

This makes Medusa more flexible than Nyiblorong.