feat(admin): add pending tag suggestions detector

tests/server/utils/adminAlerts.test.js

@@ -61,6 +61,8 @@ import {
 import Member from '../../../server/models/member.js'
 import PreRegistration from '../../../server/models/preRegistration.js'
 import Event from '../../../server/models/event.js'
+import { detectPendingTagSuggestions } from '../../../server/utils/adminAlerts.js'
+import TagSuggestion from '../../../server/models/tagSuggestion.js'
 
 describe('adminAlerts module shell', () => {
   describe('ALERT_THRESHOLDS', () => {
@@ -349,4 +351,43 @@ describe('adminAlerts module shell', () => {
       })
     })
   })
+
+  describe('tag suggestion alert', () => {
+    beforeEach(() => {
+      vi.clearAllMocks()
+    })
+
+    function mockTagSuggestionFind(result) {
+      TagSuggestion.find.mockReturnValue({
+        select: vi.fn().mockReturnValue({
+          lean: vi.fn().mockResolvedValue(result)
+        })
+      })
+    }
+
+    it('returns a single aggregated item with the count', async () => {
+      mockTagSuggestionFind([
+        { _id: 't1' }, { _id: 't2' }, { _id: 't3' }
+      ])
+
+      const alert = await detectPendingTagSuggestions()
+
+      expect(alert.type).toBe('tag_suggestions_pending')
+      expect(alert.severity).toBe('attention')
+      expect(alert.items).toHaveLength(1)
+      expect(alert.items[0]).toEqual({
+        id: 'tag-suggestions',
+        label: '3 pending tag suggestions',
+        sublabel: 'Review and approve in Tags',
+        href: '/admin/tags'
+      })
+      expect(TagSuggestion.find).toHaveBeenCalledWith({ status: 'pending' })
+    })
+
+    it('returns an empty list when nothing is pending', async () => {
+      mockTagSuggestionFind([])
+      const alert = await detectPendingTagSuggestions()
+      expect(alert.items).toEqual([])
+    })
+  })
 })