revive: garden rebranded to Vigo + Estate API dashboard

- Rebrand from Vigilio Desto → Vigo, the Watcher of Trentuna
- Updated hugo.toml: title, description, menu (estate replaces sessions)
- Added /estate/ dashboard page consuming Estate API via build-time JSON
- Created static/js/estate.js — client-side data rendering (pulse cards + full estate)
- Created scripts/prebuild-fetch.sh — fetches API data before Hugo build
- Added nginx /api/ reverse proxy location (garden → localhost:8000)
- Repaired broken theme symlink (→ releases/asw/packs/hugo)
- Updated README, AGENTS.md, .gitignore for Hugo build artifacts
- Site builds clean: 206 pages, 79ms

layouts/partials/head.html

@@ -14,6 +14,8 @@
 <link rel="stylesheet" href="{{ "css/asw.css" | absURL }}">
 <link rel="stylesheet" href="{{ "css/garden.css" | absURL }}">
 
+<script src="{{ "js/garden-feed.js" | absURL }}" defer></script>
+
 {{- range .AlternativeOutputFormats -}}
 <link rel="{{ .Rel }}" type="{{ .MediaType.Type }}" href="{{ .Permalink | safeURL }}">
 {{- end }}