feat: 设置功能

src/shared/app-update.ts

@@ -0,0 +1,25 @@
+export type AppUpdateStatus =
+  | 'idle'
+  | 'checking'
+  | 'available'
+  | 'not-available'
+  | 'downloading'
+  | 'downloaded'
+  | 'error'
+  | 'unsupported'
+
+export interface AppUpdateState {
+  status: AppUpdateStatus
+  currentVersion: string
+  version?: string
+  percent?: number
+  transferred?: number
+  total?: number
+  bytesPerSecond?: number
+  message?: string
+}
+
+export interface AppUpdateCheckResult {
+  success: boolean
+  state: AppUpdateState
+}

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
+}