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/Media Relayout.md

@@ -71,12 +71,23 @@ that would be filed wrong, and the plan is not run until it is understood.
 ```bash
 scripts/media-apply.py apply    --plan /tmp/jf-plan.tsv --root /mnt/entropy/Movies   # dry, writes nothing
 scripts/media-apply.py apply    --plan /tmp/jf-plan.tsv --root /mnt/entropy/Movies --apply
-scripts/media-apply.py verify   --plan /tmp/jf-plan.tsv --journal /mnt/entropy/media-relayout.jsonl
-scripts/media-apply.py sweep    --journal /mnt/entropy/media-relayout.jsonl --root /mnt/entropy/Movies   # dry
-scripts/media-apply.py sweep    --journal /mnt/entropy/media-relayout.jsonl --root /mnt/entropy/Movies --apply
-scripts/media-apply.py rollback --journal /mnt/entropy/media-relayout.jsonl --root /mnt/entropy/Movies --apply
+scripts/media-apply.py verify   --plan /tmp/jf-plan.tsv --journal /mnt/entropy/.media-campaign/media-relayout.jsonl
+scripts/media-apply.py sweep    --journal /mnt/entropy/.media-campaign/media-relayout.jsonl --root /mnt/entropy/Movies   # dry
+scripts/media-apply.py sweep    --journal /mnt/entropy/.media-campaign/media-relayout.jsonl --root /mnt/entropy/Movies --apply
+scripts/media-apply.py rollback --journal /mnt/entropy/.media-campaign/media-relayout.jsonl --root /mnt/entropy/Movies --apply
 ```
 
+**Every campaign artifact — plan, journal, exceptions file, run log — lives in
+`/mnt/entropy/.media-campaign/`.** The array root carries libraries and nothing
+else: a root strewn with `*.jsonl` and `*-plan.tsv` gets browsed as content, and
+the dot-directory is ignored by both media servers. Relocated 2026-11-02, 48 files,
+undo with `media-apply.py rollback --journal /mnt/entropy/.media-campaign/media-campaign-relocate.jsonl --root /mnt/entropy --apply`.
+The holds and trash (`.AGENTTRASH`, `.HOLD-<date>-*`) stay at the root on purpose:
+the purge machinery is given those paths as `--hold`, and a hold that moves out
+from under the tool that made it is a hold nobody can find. Name `--journal`
+explicitly on every run — the tool's default is `media-relayout.jsonl` beside
+`--root`, so a bare run recreates exactly the root-level log this page forbids.
+
 An apply also leaves the release folders it emptied standing where they were —
 hundreds of them at the library root — which is what `sweep` removes, dry-run
 first, from the same journal.
@@ -110,7 +121,7 @@ a read beside a running scan can fail as "database disk image is malformed".
 `immutable` stays only the fallback for a database whose `-shm` cannot be read.
 
 ```bash
-scripts/media-verify.py --journal /mnt/entropy/media-relayout-music.jsonl \
+scripts/media-verify.py --journal /mnt/entropy/.media-campaign/media-relayout-music.jsonl \
     --db-kind jellyfin --ignore-ext jpg,jpeg,png,log,cue,toc,nfo,txt,m3u,accurip
 ```
 
@@ -150,11 +161,11 @@ by series, and writes a plan in the executor's own format:
 
 ```bash
 scripts/media-tv.py --root /mnt/entropy/Movies --library /mnt/entropy/TVShows \
-    --out /mnt/entropy/media-tv-plan.tsv
-scripts/media-apply.py apply --plan /mnt/entropy/media-tv-plan.tsv --root /mnt/entropy
-scripts/media-apply.py apply --plan /mnt/entropy/media-tv-plan.tsv --root /mnt/entropy \
-    --journal /mnt/entropy/media-relayout-tv.jsonl --apply
-scripts/media-apply.py sweep --journal /mnt/entropy/media-relayout-tv.jsonl \
+    --out /mnt/entropy/.media-campaign/media-tv-plan.tsv
+scripts/media-apply.py apply --plan /mnt/entropy/.media-campaign/media-tv-plan.tsv --root /mnt/entropy
+scripts/media-apply.py apply --plan /mnt/entropy/.media-campaign/media-tv-plan.tsv --root /mnt/entropy \
+    --journal /mnt/entropy/.media-campaign/media-relayout-tv.jsonl --apply
+scripts/media-apply.py sweep --journal /mnt/entropy/.media-campaign/media-relayout-tv.jsonl \
     --root /mnt/entropy --apply
 ```