docs(media): campaign artifacts live in /mnt/entropy/.media-campaign

The array root carried 48 planning artifacts (journals, plans, run logs)
accumulated by the relayout campaigns since 2026-11-02. They sit beside the
libraries now, which is how a media server ends up indexing a journal.

Moved all 48 (219.8 MiB) into the dot-directory `/mnt/entropy/.media-campaign`
with a journaled `media-apply` run (plan, apply, verify — 48 verified at their
targets, 0 root files left). Jellyfin and Plex ignore dot-directories, and the
overlay view exposes the array root to both servers, so the same pollution
existed on the view side.

Every vault page that named a root-level journal path is rewritten to the new
home (26 occurrences across 6 pages), and the law is stated once, in
[[Media Relayout]], which owns the tool chain: `media-apply.py` defaults its
journal to `media-relayout.jsonl` beside `--root`, so a run that omits
`--journal` recreates exactly the root-level log this now forbids.

serverAppConfigs-docs/Dankserver/Audiobookshelf.md

@@ -36,7 +36,7 @@ manager) — **Internal-only:** LAN address, no vhost, no DNS name.
 | Self-healing | `Restart=always`, `RestartSec=5`, `WantedBy=default.target` |
 | Deploy | `./scripts/deploy.sh dankserver --service audiobookshelf` |
 | Handler | `deploy_audiobookshelf` in `scripts/deploy-remote.sh` |
-| Library layout | one book per folder — ABS groups by the first directory holding a media file (see Laws); every move is journalled at `/mnt/entropy/media-relayout-audiobooks.jsonl` |
+| Library layout | one book per folder — ABS groups by the first directory holding a media file (see Laws); every move is journalled at `/mnt/entropy/.media-campaign/media-relayout-audiobooks.jsonl` |
 
 ## Bootstrap