feat: legacy import — packs, examples, lab, themes, docs, lineage

Import from agentic-semantic-web/ into restructured repo:
- 7 packs (apache, caddy, flask, hugo, nginx, pandoc, python)
- shared error pages (403-503)
- 17 lab experiments (boilerplate, charts, misc)
- 31 example pages (charts, components, content, layout, vault)
- 2 themes (garden, trentuna stub)
- 4 docs (llms.txt, vocabulary, philosophy, agent-directive)
- lineage.md (Pico/Open Props/Charts.css history)
- Hugo mounts for lab/ and examples/

All agentic.css references updated to asw.css.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packs/hugo/admin/config.yml

@@ -0,0 +1,82 @@
+# Decap CMS configuration for ASW-Hugo pack
+# Browser-based Markdown editing — no backend server required.
+#
+# Setup:
+#   1. Update `repo` below to your Forgejo repo path (owner/repo)
+#   2. Update `base_url` to your Forgejo instance URL
+#   3. Register an OAuth app in Forgejo: Settings → Applications → OAuth2 Apps
+#      - Redirect URL: https://yoursite.com/admin/
+#   4. Deploy admin/ alongside your Hugo output
+#   5. Access at https://yoursite.com/admin/
+
+backend:
+  name: gitea               # Forgejo is Gitea-compatible
+  repo: trentuna/vault      # ← CHANGE: your repo (owner/repo)
+  branch: main
+  base_url: https://trentuna.com   # ← CHANGE: your Forgejo instance URL
+  auth_endpoint: /api/v1/oauth2/
+
+media_folder: static/images
+public_folder: /images
+
+# Slug format for new posts
+slug:
+  encoding: ascii
+  clean_accents: true
+
+collections:
+  - name: posts
+    label: Posts
+    label_singular: Post
+    folder: content/posts
+    create: true
+    slug: "{{year}}-{{month}}-{{day}}-{{slug}}"
+    preview_path: "posts/{{slug}}/"
+    fields:
+      - label: Title
+        name: title
+        widget: string
+      - label: Date
+        name: date
+        widget: datetime
+        default: ""
+        date_format: "YYYY-MM-DD"
+        time_format: "HH:mm:ss"
+        format: "YYYY-MM-DDTHH:mm:ssZ"
+      - label: Description
+        name: description
+        widget: string
+        required: false
+        hint: Short summary shown in list views
+      - label: Tags
+        name: tags
+        widget: list
+        required: false
+        hint: Comma-separated tags
+      - label: Draft
+        name: draft
+        widget: boolean
+        default: true
+      - label: Body
+        name: body
+        widget: markdown
+
+  - name: pages
+    label: Pages
+    label_singular: Page
+    folder: content
+    create: true
+    filter:
+      field: _type
+      value: page
+    fields:
+      - label: Title
+        name: title
+        widget: string
+      - label: Description
+        name: description
+        widget: string
+        required: false
+      - label: Body
+        name: body
+        widget: markdown