feat: Add deafen to pc, fix mobiel view, fix freeze on startup

toju-app/src/app/domains/attachment/domain/logic/attachment-blob.rules.ts

@@ -0,0 +1,21 @@
+/** Chunk size used when rebuilding attachment blobs from disk without blocking the UI thread. */
+export const ATTACHMENT_BLOB_READ_CHUNK_SIZE_BYTES = 256 * 1024;
+
+/** Decode a base64 payload into bytes for Blob construction. */
+export function decodeBase64ToUint8Array(base64: string): Uint8Array {
+  const binary = atob(base64);
+  const bytes = new Uint8Array(binary.length);
+
+  for (let index = 0; index < binary.length; index++) {
+    bytes[index] = binary.charCodeAt(index);
+  }
+
+  return bytes;
+}
+
+/** Yield control back to the browser so long attachment hydration cannot freeze Electron. */
+export function yieldToAttachmentHydrationLoop(): Promise<void> {
+  return new Promise((resolve) => {
+    setTimeout(resolve, 0);
+  });
+}