Add admin analytics trend views

src/composables/useAdminFiles.ts

@@ -1164,6 +1164,14 @@ export function useAdminFiles() {
     await loadFiles()
   }
 
+  const handlePageSizeChange = async (size: number) => {
+    if (!Number.isFinite(size) || size < 1) return
+    params.value.size = Math.min(Math.trunc(size), 100)
+    params.value.page = 1
+    markViewPresetDirty()
+    await loadFiles()
+  }
+
   const openEditModal = (file: FileListItem) => {
     editForm.value = {
       id: file.id,
@@ -1690,6 +1698,7 @@ export function useAdminFiles() {
     downloadFile,
     exportPreviewText,
     handlePageChange,
+    handlePageSizeChange,
     handleSearch,
     applyDetailPolicyAction,
     applySelectedPolicyAction,