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>

src/popup/style.css

@@ -0,0 +1,85 @@
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
+  background: #f8f9fa;
+  min-width: 320px;
+  padding: 16px;
+}
+
+.container {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 12px;
+}
+
+.save-button {
+  width: 100%;
+  padding: 14px 20px;
+  font-size: 14px;
+  font-weight: 600;
+  border: none;
+  border-radius: 8px;
+  background: #2563eb;
+  color: white;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
+}
+
+.save-button:hover:not(:disabled) {
+  background: #1d4ed8;
+  box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
+  transform: translateY(-1px);
+}
+
+.save-button:active:not(:disabled) {
+  transform: translateY(0);
+  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
+}
+
+.save-button:disabled {
+  background: #94a3b8;
+  cursor: not-allowed;
+  box-shadow: none;
+  opacity: 0.6;
+}
+
+.save-button.saving {
+  background: #0891b2;
+  cursor: wait;
+}
+
+.save-button.done {
+  background: #059669;
+}
+
+.info-text {
+  font-size: 12px;
+  color: #64748b;
+  text-align: center;
+}
+
+.status-message {
+  font-size: 13px;
+  font-weight: 500;
+  min-height: 20px;
+  text-align: center;
+}
+
+.status-message.error {
+  color: #dc2626;
+}
+
+.status-message.success {
+  color: #059669;
+}
+
+.status-message.info {
+  color: #0891b2;
+}