Add wrapper script: add-jellyfin-user.sh

Jellyfin has no native global default for new-user DisplayPreferences;
home-layout defaults are baked into the web bundle. This wrapper layers
the s8n canonical prefs on top after user creation:

  - Home sections: resume, resumeaudio, nextup, latestmedia, none x6
    (drops the 'My Media' tile row — sidebar already exposes libraries)
  - SubtitleMode=Always, SubtitleLanguagePreference=eng
  - AudioLanguagePreference=pol

Use for every new user from now on; achieves the 'global default' the
admin wanted without patching the web bundle.

Already retroactively applied to s8n + guest.

bin/add-jellyfin-user.sh

@@ -0,0 +1,90 @@
+#!/usr/bin/env bash
+# add-jellyfin-user.sh — create a Jellyfin user with the canonical s8n layout.
+#
+# Defaults applied:
+#   - Home sections 0..9: resume, resumeaudio, nextup, latestmedia, none x6
+#     (no "My Media" tile row — sidebar already exposes libraries)
+#   - SubtitleMode=Always, SubtitleLanguagePreference=eng, AudioLanguagePreference=pol
+#   - Non-admin policy with EnableContentDeletion=false
+#
+# Why this exists: Jellyfin has no native global default for new-user
+# DisplayPreferences. The home-layout defaults are baked into the web bundle.
+# This wrapper layers our preferences on top after user creation, so the same
+# layout shows up for every user without anyone having to click through
+# Settings → Display → Home Screen.
+#
+# Usage:
+#   JELLYFIN_TOKEN=xxx ./add-jellyfin-user.sh <username> <password>
+#
+# Or interactive (will prompt for missing creds).
+set -euo pipefail
+
+JELLYFIN_URL="${JELLYFIN_URL:-https://tv.s8n.ru}"
+JELLYFIN_TOKEN="${JELLYFIN_TOKEN:?set JELLYFIN_TOKEN=<admin-token>}"
+
+USERNAME="${1:?usage: $0 <username> <password>}"
+PASSWORD="${2:?usage: $0 <username> <password>}"
+
+AUTH="MediaBrowser Token=$JELLYFIN_TOKEN"
+
+echo "[1/3] Creating user '$USERNAME'..."
+RESP=$(curl -ks -X POST "$JELLYFIN_URL/Users/New" \
+  -H "Authorization: $AUTH" \
+  -H "Content-Type: application/json" \
+  -d "{\"Name\":\"$USERNAME\",\"Password\":\"$PASSWORD\"}")
+USER_ID=$(echo "$RESP" | python3 -c "import json,sys; print(json.load(sys.stdin)['Id'])" 2>/dev/null || true)
+if [[ -z "$USER_ID" ]]; then
+  echo "User creation failed:"
+  echo "$RESP"
+  exit 1
+fi
+echo "  Created. UserId=$USER_ID"
+
+echo "[2/3] Applying canonical home layout..."
+curl -ks "$JELLYFIN_URL/DisplayPreferences/usersettings?userId=$USER_ID&client=emby" \
+  -H "Authorization: $AUTH" > /tmp/dp-cur.$$.json
+python3 - <<EOF > /tmp/dp-fix.$$.json
+import json
+with open('/tmp/dp-cur.$$.json') as f: dp = json.load(f)
+cp = dp['CustomPrefs']
+for k in list(cp.keys()):
+    if k.lower().startswith('homesection'):
+        del cp[k]
+cp['homesection0'] = 'resume'
+cp['homesection1'] = 'resumeaudio'
+cp['homesection2'] = 'nextup'
+cp['homesection3'] = 'latestmedia'
+for i in range(4, 10):
+    cp[f'homesection{i}'] = 'none'
+print(json.dumps(dp))
+EOF
+HTTP=$(curl -ks -X POST "$JELLYFIN_URL/DisplayPreferences/usersettings?userId=$USER_ID&client=emby" \
+  -H "Authorization: $AUTH" \
+  -H "Content-Type: application/json" \
+  --data-binary @/tmp/dp-fix.$$.json -w "%{http_code}" -o /dev/null)
+rm -f /tmp/dp-cur.$$.json /tmp/dp-fix.$$.json
+[[ "$HTTP" == "204" ]] || { echo "  DisplayPreferences POST failed: $HTTP"; exit 1; }
+echo "  Home layout applied."
+
+echo "[3/3] Setting subtitle + audio prefs (subs=Always/eng, audio=pol)..."
+curl -ks "$JELLYFIN_URL/Users/$USER_ID" -H "Authorization: $AUTH" > /tmp/u.$$.json
+python3 - <<EOF > /tmp/u-fix.$$.json
+import json
+with open('/tmp/u.$$.json') as f: u = json.load(f)
+c = u['Configuration']
+c['SubtitleMode'] = 'Always'
+c['SubtitleLanguagePreference'] = 'eng'
+c['AudioLanguagePreference'] = 'pol'
+print(json.dumps(c))
+EOF
+HTTP=$(curl -ks -X POST "$JELLYFIN_URL/Users/$USER_ID/Configuration" \
+  -H "Authorization: $AUTH" \
+  -H "Content-Type: application/json" \
+  --data-binary @/tmp/u-fix.$$.json -w "%{http_code}" -o /dev/null)
+rm -f /tmp/u.$$.json /tmp/u-fix.$$.json
+[[ "$HTTP" == "204" ]] || { echo "  User config POST failed: $HTTP"; exit 1; }
+echo "  User prefs applied."
+
+echo
+echo "Done. User '$USERNAME' ready at $JELLYFIN_URL"
+echo "  UserId: $USER_ID"