feat: add desktop storage cleanup controls

apps/desktop-client/src/renderer/env.d.ts

@@ -20,6 +20,7 @@ declare global {
   interface DesktopAppSettings {
     openAtLogin: boolean
     keepRunningInBackground: boolean
+    autoCleanStorageWeekly: boolean
   }
 
   interface DesktopLoginCredentials {
@@ -27,6 +28,43 @@ declare global {
     password: string
   }
 
+  interface DesktopStorageEntry {
+    id: string
+    label: string
+    kind: 'app-cache' | 'bound-account' | 'unbound-session'
+    partition: string | null
+    accountId: string | null
+    sizeBytes: number
+    cleanableBytes: number
+    lastModifiedAt: number | null
+    cleanable: boolean
+    active: boolean
+  }
+
+  interface DesktopStorageSnapshot {
+    generatedAt: number
+    totalBytes: number
+    cleanableBytes: number
+    appCacheBytes: number
+    boundAccountBytes: number
+    boundAccountCleanableBytes: number
+    unboundSessionBytes: number
+    unboundSessionCount: number
+    boundAccountCount: number
+    entries: DesktopStorageEntry[]
+    autoCleanStorageWeekly: boolean
+    lastCleanupAt: number | null
+    nextCleanupAt: number | null
+  }
+
+  interface DesktopStorageCleanupResult {
+    cleanedAt: number
+    cleanedBytes: number
+    removedEntries: number
+    before: DesktopStorageSnapshot
+    after: DesktopStorageSnapshot
+  }
+
   interface WorkbenchNavigationState {
     canGoBack: boolean
     canGoForward: boolean
@@ -90,6 +128,8 @@ declare global {
         saveLoginCredentials(credentials: DesktopLoginCredentials): Promise<DesktopLoginCredentials>
         clearLoginCredentials(): Promise<null>
         setAppSetting(key: keyof DesktopAppSettings, value: boolean): Promise<DesktopAppSettings>
+        storageSnapshot(): Promise<DesktopStorageSnapshot>
+        cleanStorage(): Promise<DesktopStorageCleanupResult>
         syncRuntimeSession(session: DesktopRuntimeSessionSyncRequest | null): Promise<null>
         rotateRuntimeClientToken(): Promise<DesktopClientRotateResponse>
         releaseRuntimeSession(revoke?: boolean): Promise<null>