Add --webdir argument for Jellyfin web client path

The Homebrew cask puts jellyfin-web in Contents/Resources/, not
Contents/MacOS/, so we need to explicitly specify the path.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ansible/roles/jellyfin/defaults/main.yml

@@ -16,5 +16,8 @@ jellyfin_cask_app_path: /Applications/Jellyfin.app
 # Binary path inside the cask app
 jellyfin_binary: "{{ jellyfin_cask_app_path }}/Contents/MacOS/jellyfin"
 
+# Web client path (different from binary location in Homebrew cask)
+jellyfin_webdir: "{{ jellyfin_cask_app_path }}/Contents/Resources/jellyfin-web"
+
 # Log directory
 jellyfin_log_dir: "{{ ansible_env.HOME }}/Library/Logs"

ansible/roles/jellyfin/templates/mcquack.jellyfin.plist.j2

@@ -16,6 +16,8 @@
 		<string>--service</string>
 		<string>--datadir</string>
 		<string>{{ jellyfin_data_dir }}</string>
+		<string>--webdir</string>
+		<string>{{ jellyfin_webdir }}</string>
 	</array>
 	<key>WorkingDirectory</key>
 	<string>{{ jellyfin_data_dir }}</string>