chore: import broken Phase-1 extension as received

Snapshot of /home/parf/Downloads/manifest.zip as delivered, before any
GSD-driven remediation. Contains a partially-broken first attempt at the
Russian SPEC "Тз расширение фаза1.md" (Phase 1 of operator-session-recorder).

Source layout:
- manifest.json — MV3 declaration with tabCapture/activeTab/downloads/etc.
- src/background/index.ts — service worker (video buffer + archive packaging)
- src/content/index.ts — rrweb + user-event logger
- src/popup/{index.html,index.ts,style.css} — Russian popup UI
- offscreen/{index.html,index.ts} — orphaned offscreen (see audit)
- vite.config.ts — inline plugin emitting a separate live offscreen.js
- generate-icons.js, icons/ — minimal PNG icons
- "Тз расширение фаза1.md" — authoritative Russian SPEC

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

offscreen/index.ts

@@ -0,0 +1,60 @@
+let mediaRecorder: MediaRecorder | null = null;
+let videoChunks: Blob[] = [];
+
+// Запись видео
+async function startRecording(streamId: string) {
+  const stream = await navigator.mediaDevices.getUserMedia({
+    video: {
+      mandatory: {
+        chromeMediaSource: 'tab',
+        chromeMediaSourceId: streamId
+      }
+    } as any,
+    audio: false
+  });
+
+  mediaRecorder = new MediaRecorder(stream);
+
+  mediaRecorder.ondataavailable = (event) => {
+    if (event.data && event.data.size > 0) {
+      videoChunks.push(event.data);
+      chrome.runtime.sendMessage({
+        type: 'VIDEO_CHUNK',
+        data: event.data,
+        timestamp: Date.now()
+      });
+    }
+  };
+
+  mediaRecorder.start(1000);
+}
+
+// Остановка записи
+function stopRecording() {
+  if (mediaRecorder && mediaRecorder.state !== 'inactive') {
+    mediaRecorder.stop();
+  }
+}
+
+// Получение чанков
+function getChunks(): Blob[] {
+  return videoChunks;
+}
+
+// Обработка сообщений
+chrome.runtime.onMessage.addListener((message) => {
+  switch (message.type) {
+    case 'START_RECORDING':
+      startRecording(message.streamId);
+      break;
+    case 'STOP_RECORDING':
+      stopRecording();
+      break;
+    case 'GET_CHUNKS':
+      chrome.runtime.sendMessage({
+        type: 'CHUNKS_RESPONSE',
+        chunks: getChunks()
+      });
+      break;
+  }
+});