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/nginx/nginx-autoindex.conf

@@ -0,0 +1,59 @@
+# ASW Nginx Directory Listing — config snippet
+#
+# nginx's autoindex generates its own HTML that can't be easily replaced.
+# The cleanest approach: serve autoindex JSON and render it client-side.
+#
+# This gives full control over the HTML output while keeping nginx doing
+# the work of listing directories.
+
+# ── Option A: JSON autoindex + client-side renderer (recommended) ─────────────
+#
+# nginx serves directory listings as JSON; a small JS fragment renders them
+# with ASW styles. The renderer is served from /asw/autoindex.js.
+
+location /files/ {
+    # The directory to browse
+    alias /var/www/files/;
+
+    autoindex on;
+    autoindex_format json;   # nginx ≥ 1.7.9
+
+    # When the path ends in / (directory request), serve our renderer
+    # instead of the raw JSON. The renderer fetches the JSON itself.
+    index ___nonexistent___;  # disable default index file lookup
+
+    # Intercept directory responses and redirect to renderer
+    # (requires auth_request or a small proxy; see Option B for simpler approach)
+}
+
+# Serve the ASW autoindex renderer
+location = /asw/autoindex.js {
+    alias /home/exedev/projects/agentic-semantic-web/packs/nginx/autoindex.js;
+}
+
+
+# ── Option B: add_before_body / add_after_body (simplest) ────────────────────
+#
+# nginx injects HTML before and after its generated listing.
+# This wraps the ugly default output in ASW chrome — not perfect but zero JS.
+#
+# Requires nginx built with --with-http_addition_module (default on most distros).
+
+location /browse/ {
+    alias /var/www/browse/;
+    autoindex on;
+
+    # Inject ASW nav before the listing, footer after
+    add_before_body /asw/autoindex-header.html;
+    add_after_body  /asw/autoindex-footer.html;
+}
+
+location = /asw/autoindex-header.html {
+    alias /home/exedev/projects/agentic-semantic-web/packs/nginx/autoindex-header.html;
+    internal;
+}
+
+location = /asw/autoindex-footer.html {
+    alias /home/exedev/projects/agentic-semantic-web/packs/nginx/autoindex-footer.html;
+    internal;
+}