dankserver: quadlet units + deploy handlers for romm trio, jellyfin, calibre-web, copyparty

Cutover of the six surviving dankserver services from compose-era bare
containers to boot-persistent Quadlet units (WantedBy=default.target; podman
5.x v1 generator honors it at user-manager start).

Units are faithful to live inspect ground truth (image pins = running tags,
not compose inventory):
- romm trio shares one data root: /home/dank/Containers/romm mounted whole at
  /romm; mariadb datadir and redis data dir live inside it. Aliases mariadb/
  redis preserved on dankserver_appnet via Network=...:alias=. Secrets stay in
  the host-local env file (EnvironmentFile + ${VAR} expansion in the generated
  ExecStart, gitea precedent). copyparty passes its admin account via
  Exec=-a ${COPAY_ACCOUNT}:${COPAY_PASSWORD} (Exec= not Command=: the v1
  generator hard-fails on Command=); entropy stays rw only there.
- jellyfin keeps every creation-time env as Environment= lines (zero drift);
  Device=/dev/dri + GroupAdd=keep-groups preserve hardware transcoding.
- calibre-web pins the exact running image tag (id 986277563e76 =
  0.6.27-ls397), pasta network preserved.

Deployer: first-cutover handlers retire the old container, rescue unshadowed
anonymous-volume content (podman volume export + tar --skip-old-files), mv
data roots on the same fs, then start units in dependency order with health
gates. Re-deploys restart only the selected unit. deploy-plan.py maps compose
keys mariadb/redis to the new unit names; allowlists updated. New seam test
tests/dankserver_quadlet.bats pins boot-persistence + v1-generator contract;
test-changed.sh maps the new dirs to it. Full suite green (209 tests).

scripts/deploy.sh

@@ -122,8 +122,8 @@ valid_service() {
         dankclaw:authentik-worker|dankclaw:authentik-outpost|dankclaw:anubis|\
         dankclaw:frank-default-large|dankclaw:frank-default-npu|\
         dankclaw:frank-default-sightsound|\
-        dankserver:mariadb|dankserver:redis|dankserver:romm|dankserver:copyparty|\
-        dankserver:jellyfin|dankserver:calibre-web|dankserver:prowlarr|\
+        dankserver:romm-mariadb|dankserver:romm-redis|dankserver:romm|\
+        dankserver:copyparty|dankserver:jellyfin|dankserver:calibre-web|dankserver:prowlarr|\
         dankserver:qbittorrent|dankserver:radarr|dankserver:sonarr|\
         dankserver:lidarr|dankserver:readarr|dankserver:node-exporter|\
         dankserver:frank-default-small)