Timothy DeHerrera b978edf4f2 feat(content): add filesystem-driven nav discovery ...

Add NavItem struct and discover_nav() function to scan content
directory and automatically build navigation from:
- Top-level .md files (pages)
- Directories with _index.md (sections)

Navigation is sorted by frontmatter weight, then alphabetically.
Custom nav_label field allows overriding title in nav menu.

Includes 5 unit tests covering page/section discovery, weight
ordering, and nav_label support.

2026-01-31 13:52:21 -07:00

1.1 KiB

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