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/AnalyticsView.vue

@@ -5,11 +5,13 @@ import * as echarts from 'echarts'
 import type { ECharts } from 'echarts'
 import { useApi } from '@/composables/useApi'
 import { useAuthStore } from '@/stores/auth'
+import { useToastStore } from '@/stores/toast'
 import type { AnalyticsSummary, TimeseriesData } from '@/types'
 import { safeFixed } from '@/utils/formatters'
 
 const api = useApi()
 const authStore = useAuthStore()
+const toast = useToastStore()
 
 const timeRange = ref<'24h' | '7d' | '30d'>('7d')
 const loading = ref(true)
@@ -45,8 +47,8 @@ const loadAnalytics = async () => {
 
     await nextTick()
     renderCharts()
-  } catch (error) {
-    console.error('Failed to load analytics:', error)
+  } catch {
+    toast.error('Failed to load analytics data')
   } finally {
     loading.value = false
   }
@@ -206,8 +208,8 @@ const downloadCSV = async () => {
     a.download = `server_stats_${timeRange.value}.csv`
     a.click()
     window.URL.revokeObjectURL(url)
-  } catch (error) {
-    console.error('Failed to download CSV:', error)
+  } catch {
+    toast.error('Failed to download analytics export')
   }
 }
 
@@ -304,12 +306,30 @@ onMounted(() => {
         </div>
       </div>
 
-      <!-- Player Retention (Phase 2.2 placeholder) -->
+      <!-- Player Retention -->
       <div class="bg-neutral-900 border border-neutral-800 rounded-lg p-5">
-        <h2 class="text-sm font-medium text-neutral-400 uppercase tracking-wider mb-4">Player Retention</h2>
-        <div class="h-48 flex items-center justify-center border border-dashed border-neutral-800 rounded-lg">
-          <p class="text-sm text-neutral-600">Available in Phase 2.2 — New vs returning players, session duration</p>
+        <div class="flex items-center justify-between mb-4">
+          <h2 class="text-sm font-medium text-neutral-400 uppercase tracking-wider">Player Retention</h2>
+          <span class="text-xs font-medium px-2 py-0.5 bg-neutral-800 text-neutral-500 rounded-full border border-neutral-700">Phase 2</span>
         </div>
+        <div class="grid grid-cols-1 lg:grid-cols-3 gap-4">
+          <div class="bg-neutral-800/50 rounded-lg p-4 border border-neutral-800">
+            <p class="text-xs text-neutral-500 mb-1">New Players</p>
+            <p class="text-2xl font-bold text-neutral-600">\u2014</p>
+            <p class="text-xs text-neutral-600 mt-1">First-time visitors</p>
+          </div>
+          <div class="bg-neutral-800/50 rounded-lg p-4 border border-neutral-800">
+            <p class="text-xs text-neutral-500 mb-1">Returning Players</p>
+            <p class="text-2xl font-bold text-neutral-600">\u2014</p>
+            <p class="text-xs text-neutral-600 mt-1">Seen more than once</p>
+          </div>
+          <div class="bg-neutral-800/50 rounded-lg p-4 border border-neutral-800">
+            <p class="text-xs text-neutral-500 mb-1">Avg Session Duration</p>
+            <p class="text-2xl font-bold text-neutral-600">\u2014</p>
+            <p class="text-xs text-neutral-600 mt-1">Per visit</p>
+          </div>
+        </div>
+        <p class="text-xs text-neutral-600 mt-4 text-center">Player retention analytics will be available in Phase 2</p>
       </div>
     </template>
   </div>