asw-v01: archive deferred content (packs, site, lab, legacy examples)

- 2.1: packs/ -> archive/packs/
- 2.2: site/ -> archive/site/
- 2.3: src/lab/ -> archive/lab/
- 2.4: examples/ -> archive/examples-legacy/ (SSI-based)

packs/hugo/layouts/partials/head.html

@@ -1,20 +0,0 @@
-<meta charset="utf-8">
-<meta name="viewport" content="width=device-width, initial-scale=1">
-<title>
-  {{- if .IsHome -}}
-    {{ .Site.Title }}
-  {{- else -}}
-    {{ .Title }} · {{ .Site.Title }}
-  {{- end -}}
-</title>
-{{- with .Description }}<meta name="description" content="{{ . }}">{{- end }}
-{{- if not .Description }}{{- with .Site.Params.description }}<meta name="description" content="{{ . }}">{{- end }}{{- end }}
-
-<!-- ASW framework CSS — absURL ensures correct path when served at a subpath -->
-<link rel="stylesheet" href="{{ "css/asw.css" | absURL }}">
-<!-- Trentuna theme tokens: Inter, JetBrains Mono, dark palette -->
-<link rel="stylesheet" href="{{ "css/theme.css" | absURL }}">
-
-{{- range .AlternativeOutputFormats -}}
-<link rel="{{ .Rel }}" type="{{ .MediaType.Type }}" href="{{ .Permalink | safeURL }}">
-{{- end }}