feat(api): add cache + busting for admin

polylan_submitter/src/components/Results.vue

@@ -50,6 +50,7 @@ const userInfo = ref({
   rank: null as number | null,
   totalPoints: 0,
   puzzlesSolved: 0,
+  isStaff: false,
 });
 
 const fetchResults = async () => {
@@ -106,6 +107,25 @@ const togglePuzzleExpanded = (puzzleId: number) => {
   expandedPuzzleId.value = expandedPuzzleId.value === puzzleId ? null : puzzleId;
 };
 
+const clearCache = async () => {
+  try {
+    const response = await fetch("/api/cache/clear", {
+      method: "POST",
+    });
+
+    if (response.ok) {
+      alert("Cache cleared successfully!");
+      await fetchResults();
+    } else {
+      const error = await response.json();
+      alert(`Error clearing cache: ${error.detail || "Unknown error"}`);
+    }
+  } catch (error) {
+    console.error("Error clearing cache:", error);
+    alert("Error clearing cache. Please try again.");
+  }
+};
+
 const loadUserData = async () => {
   try {
     const response = await fetch("/api/user");
@@ -113,6 +133,7 @@ const loadUserData = async () => {
       const user = await response.json();
       if (user.is_authenticated) {
         userInfo.value.username = user.username;
+        userInfo.value.isStaff = user.is_staff || false;
 
         await fetchResults();
 
@@ -178,6 +199,11 @@ onMounted(() => {
                 <p class="text-sm text-base-content/70 mb-1">Puzzles Solved</p>
                 <p class="text-2xl font-bold">{{ userInfo.puzzlesSolved }}</p>
               </div>
+
+              <button v-if="userInfo.isStaff" @click="clearCache" class="btn btn-error btn-sm w-full mt-6">
+                <i class="mdi mdi-cache-clear mr-1"></i>
+                Clear Cache
+              </button>
             </div>
           </div>
         </div>