Wave 2: content fixes, deploy pipeline, layout refinements

- dorveille.md: add ai-model/ai-provider frontmatter, restore mark tags
- hugo.toml: goldmark.renderer.unsafe=true (mark/abbr support)
- layouts: extract nav partial, fix JSON-LD, simplify list/index
- deploy.sh: push-to-render build script (webhook-receiver triggers it)
- render-footnotes.html: class-free footnote hook (staged for Hugo upgrade)

deploy.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+# deploy.sh — rebuild ASW site from latest main
+set -euo pipefail
+cd ~/projects/asw
+git pull origin main --ff-only
+npm ci --prefer-offline 2>/dev/null
+hugo --minify
+echo "[$(date -u +%Y-%m-%dT%H:%M:%SZ)] Deploy complete" >> /tmp/asw-deploy.log