feat: initial Hugo static site for lora.vegas

Minimal single-page site with custom loravega theme.
No external dependencies, no JavaScript, pure local CSS.

Sections: Mesh Channels, Discord Groups, Signal Groups, Meetup, Resources.
Includes LongFast settings reference and getting-started guide.

Closes #1

archetypes/default.md

@@ -0,0 +1,5 @@
++++
+title = '{{ replace .File.ContentBaseName "-" " " | title }}'
+date = '{{ .Date }}'
+draft = true
++++