video Tools: server-prefix the scan title (Plex/Jellyfin Library Scan)

Dashboard endpoint now returns the active media server; the Tools card title
becomes '<Server> Library Scan' (e.g. 'Plex Library Scan'), matching how music
prefixes 'Plex Database Updater'.

api/video/dashboard.py

@@ -18,7 +18,13 @@ def register_routes(bp):
     def video_dashboard():
         from . import get_video_db
         try:
-            return jsonify(get_video_db().dashboard_stats())
+            stats = get_video_db().dashboard_stats()
+            try:
+                from config.settings import config_manager
+                stats["server"] = config_manager.get_active_media_server()
+            except Exception:
+                stats["server"] = None
+            return jsonify(stats)
         except Exception:
             logger.exception("Failed to build video dashboard stats")
             return jsonify({"error": "Failed to load video dashboard stats"}), 500

webui/index.html

@@ -761,7 +761,7 @@
                             <div class="tools-grid">
                                 <div class="tool-card">
                                     <div class="tool-card-header">
-                                        <h4 class="tool-card-title">Library Scan</h4>
+                                        <h4 class="tool-card-title" data-video-scan-title>Library Scan</h4>
                                         <button class="tool-help-button" data-tool="video-scan" title="Learn more about this tool">?</button>
                                     </div>
                                     <p class="tool-card-info">Last Scan: <span data-video-scan-last>Never</span></p>

webui/static/video/video-scan.js

@@ -65,6 +65,12 @@
                 set('shows', lib.shows || 0);
                 set('episodes', lib.episodes || 0);
                 set('size', formatSize(lib.size_bytes));
+                // Server-prefixed title, like music ("Plex Database Updater").
+                var titleEl = document.querySelector('[data-video-scan-title]');
+                if (titleEl && d.server) {
+                    titleEl.textContent =
+                        d.server.charAt(0).toUpperCase() + d.server.slice(1) + ' Library Scan';
+                }
             })
             .catch(function () { /* leave defaults */ });
     }