refactor(09-05): CODE-09 purge — Phase 9 files (WHAT comments removed)

Frontend: AdminLayout, AdminSidebar, AdminOverviewView, AdminUsersView,
AdminQuotasView, AdminAiView, AdminAuditView, router/index.js, LoginView,
tailwind.config.js, api/admin.js — WHAT labels stripped; WHY constraints
preserved (D-16 anchors, security notes, api_key write-only invariant,
router guard rationale, D-08/D-09/D-10 decision refs, fetchWithRetry reason).
Backend: overview.py was already clean (no WHAT comments present).
Frontend: 137 tests pass, build succeeds.

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

frontend/src/views/admin/AdminAuditView.vue

@@ -1,6 +1,5 @@
 <template>
   <div>
-    <!-- Filter bar -->
     <div class="flex flex-wrap gap-3 mb-4 items-end">
       <div>
         <label class="block text-xs font-semibold text-gray-500 mb-1">From</label>
@@ -76,7 +75,6 @@
       <p v-if="exportError" class="text-xs text-red-600 self-center">{{ exportError }}</p>
     </div>
 
-    <!-- Loading state -->
     <div v-if="loading" class="bg-white rounded-xl border border-gray-200 p-8 text-center">
       <div class="flex items-center justify-center gap-2 text-gray-400 text-sm">
         <span class="animate-spin rounded-full border-2 border-current border-t-transparent w-4 h-4"></span>
@@ -84,15 +82,12 @@
       </div>
     </div>
 
-    <!-- Fetch error state -->
     <p v-else-if="fetchError" class="text-xs text-red-600 mt-1">{{ fetchError }}</p>
 
-    <!-- Empty state -->
     <div v-else-if="entries.length === 0" class="text-center py-12 text-gray-400 text-sm">
       No audit log entries match the selected filters.
     </div>
 
-    <!-- Table -->
     <div v-else class="bg-white rounded-xl border border-gray-200 overflow-hidden">
       <table class="w-full text-sm border-collapse">
         <thead>
@@ -131,7 +126,6 @@
       </table>
     </div>
 
-    <!-- Pagination -->
     <div v-if="!loading && entries.length > 0" class="flex items-center justify-between mt-4">
       <button
         @click="prevPage"
@@ -203,7 +197,7 @@ const fetchError = ref(null)
 const exportingCsv = ref(false)
 const exportError = ref(null)
 
-// Daily exports state (D-17)
+
 const dailyExports = ref([])
 const loadingExports = ref(false)
 const selectedExportDate = ref('')