feat: 设置功能

src/shared/cache.ts

@@ -0,0 +1,15 @@
+export type CacheClearScope = 'bootstrap' | 'electron' | 'all'
+
+export interface CacheSummaryItem {
+  id: 'bootstrap' | 'electron'
+  label: string
+  description: string
+  sizeBytes: number
+  fileCount: number
+}
+
+export interface CacheSummary {
+  items: CacheSummaryItem[]
+  totalBytes: number
+  updatedAt: number
+}