fix: Wire automation toggles, browse uMod, and error feedback across admin views

- ServerView: automation toggles (crash recovery, auto-update, force wipe eligible)
  now call updateConfig() on click with toast success/error; all catch blocks get
  toast feedback instead of silent swallow
- PluginsView: Browse uMod tab wired to /plugins/search backend endpoint with
  debounced search, results table, and Install button that calls installPlugin();
  shows install state and marks already-installed plugins
- WipesView: dry-run results now displayed in a collapsible panel (would_delete /
  would_preserve lists + estimated duration); schedule enable/disable toggle wired
  to PUT /wipes/schedules/:id with loading state and toast feedback
- AnalyticsView: catch blocks now show toast errors instead of console.log;
  Player Retention placeholder replaced with intentional placeholder cards
- TeamView, ChatLogView, PlayersView, NotificationsView, MapsView: all empty
  catch blocks and '// API not wired yet' comments replaced with toast.error()
  calls; Notifications save now shows success toast

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/views/admin/MapsView.vue

@@ -30,7 +30,7 @@ async function fetchMaps() {
     const data = await api.get<{ maps: MapEntry[] }>('/maps')
     maps.value = data.maps
   } catch {
-    // API not wired yet
+    toast.error('Failed to load map library')
   } finally {
     isLoading.value = false
   }