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 TV Relayout.md

@@ -51,16 +51,16 @@ python3 scripts/media-census.py probe --root /mnt/entropy/TVShows \
 #    against scp'd TSVs — which is where the two provider secrets live.
 python3 scripts/media-shows.py --root /mnt/entropy/TVShows --enum /tmp/tv_enum.tsv \
     --titles /tmp/tv_titles.tsv --probed /tmp/tv_probed.tsv \
-    --tmdb-cache /mnt/entropy/media-tv-names.json --tmdb --tvdb \
+    --tmdb-cache /mnt/entropy/.media-campaign/media-tv-names.json --tmdb --tvdb \
     --park /mnt/entropy/media-park/TVShows \
-    --out /mnt/entropy/media-relayout-shows2-plan.tsv \
-    --exceptions /mnt/entropy/media-relayout-shows2-exceptions.txt
+    --out /mnt/entropy/.media-campaign/media-relayout-shows2-plan.tsv \
+    --exceptions /mnt/entropy/.media-campaign/media-relayout-shows2-exceptions.txt
 # 4. Read the exceptions file FIRST — it is the review, not a log. Same executor
 #    as above, but on this arm's OWN journal, NAMED PER PASS: the journal of an
 #    applied pass is its unwind record, so a second pass that reuses the name
 #    destroys the only map back.
-scripts/media-apply.py apply --plan /mnt/entropy/media-relayout-shows2-plan.tsv \
-    --root /mnt/entropy --journal /mnt/entropy/media-relayout-shows2.jsonl --apply
+scripts/media-apply.py apply --plan /mnt/entropy/.media-campaign/media-relayout-shows2-plan.tsv \
+    --root /mnt/entropy --journal /mnt/entropy/.media-campaign/media-relayout-shows2.jsonl --apply
 ```
 
 Evidence, strongest first — the order the planner believes things: