Initial TrueGrowth source import

apps/web/public/sw-debug/shared/backup-part-manager-core.d.ts

@@ -0,0 +1,26 @@
+export const PART_SIZE_THRESHOLD: number;
+
+export interface SharedBackupPartManagerOptions {
+  source?: string;
+  revokeDelayMs?: number;
+  interPartPauseMs?: number;
+  finalPartPauseMs?: number;
+  preserveAssetEntryDate?: boolean;
+  downloadBlob?: (blob: Blob, filename: string, revokeDelayMs?: number) => Promise<void>;
+  ZipCtor?: new () => unknown;
+}
+
+export class SharedBackupPartManager {
+  constructor(baseFilename: string, backupId: string, options?: SharedBackupPartManagerOptions);
+  addFile(path: string, content: unknown): void;
+  addAssetBlob(
+    path: string,
+    blob: Blob,
+    metaPath: string,
+    metaContent: unknown,
+    createdAt?: number
+  ): Promise<void>;
+  finalizePart(): Promise<void>;
+  startNewPart(): void;
+  finalizeAll(manifest: unknown): Promise<unknown>;
+}