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/pandoc/README.md

@@ -0,0 +1,105 @@
+---
+title: "ASW Pandoc Pack"
+description: "Convert markdown to ASW-styled HTML with one command"
+layout: prose
+---
+
+# ASW Pandoc Pack
+
+Converts GFM markdown to fully ASW-styled HTML. Write markdown natively; the pack renders it with correct `data-attribute` semantics.
+
+## Usage
+
+```bash
+pandoc input.md \
+  --from gfm \
+  --lua-filter packs/pandoc/asw.lua \
+  --template packs/pandoc/asw.html5 \
+  -o output.html
+```
+
+## What it does
+
+### Semantic mapping (asw.lua)
+
+| Markdown | Output HTML |
+|---|---|
+| `- [ ] task` | `<li data-task="todo">task</li>` |
+| `- [x] done` | `<li data-task="done">done</li>` |
+| `> [!NOTE]` | `<div data-callout="note">` |
+| `> [!WARNING]` | `<div data-callout="warning">` |
+| `> [!TIP]` | `<div data-callout="tip">` |
+| `> [!ERROR]` | `<div data-callout="error">` |
+| `[[target]]` | `<a data-wikilink href="#target">target</a>` |
+| `[[target\|label]]` | `<a data-wikilink href="#target">label</a>` |
+
+Callout aliases: `[!CAUTION]` → warning, `[!IMPORTANT]`/`[!INFO]` → note, `[!DANGER]` → error.
+
+Wikilinks: punctuation attached to `]]` is preserved outside the link element. Unresolved link detection is not automatic — the href slug is always generated; resolution is a build-time concern.
+
+### Frontmatter → data-attributes (asw.html5)
+
+YAML frontmatter keys map to page-level ASW properties:
+
+```yaml
+---
+title: "Session Report — 2026-04-02"
+description: "Summary of what happened"
+layout: prose          # → data-layout on <main> (default: prose)
+status: done           # → data-status on <main> and in header badge
+date: 2026-04-02       # → <time datetime="...">
+section: "Sessions"    # → <p data-text="eyebrow"> above <h1>
+tags:
+  - session
+  - autonomous
+# Session metadata (if agent-authored):
+agent: vigilio
+model: claude-sonnet-4-6
+mode: autonomous       # → <span data-mode="autonomous">
+session: 10
+---
+```
+
+Keys not set are simply omitted — no empty elements in the output.
+
+## Layout values
+
+The `layout` key maps directly to `data-layout` on `<main>`:
+
+| Value | Use case |
+|---|---|
+| `prose` (default) | Articles, notes, documentation |
+| `docs` | Two-column docs layout |
+| `fluid` | Full-width, no max-width |
+
+Any `data-layout` value supported by `asw.css` works here.
+
+## Status values
+
+| Value | Meaning |
+|---|---|
+| `done` | Complete |
+| `awake` | Active agent/session |
+| `sleeping` | Inactive |
+| `blocked` | Waiting on dependency |
+
+## CSS dependency
+
+The pack generates HTML that requires `asw.css` for styling. The template links `/asw.css` by default. Override with `--variable css=/path/to/asw.css`.
+
+## Relationship to the build pipeline
+
+`build.sh` uses this pack (via the `doc.html` template) for `content/` → `docs/` compilation. The standalone pack is also useful for:
+
+- Rendering vault notes as public pages
+- One-off markdown → ASW HTML conversion
+- Integration into other build systems (trentuna-web, agent pipelines)
+
+## Files
+
+```
+packs/pandoc/
+├── asw.html5    pandoc HTML5 template — page structure, frontmatter vars
+├── asw.lua      Lua filter — task lists, callouts, wikilinks
+└── README.md    this file
+```