fix: reuse Cloudflare session for site media

src/vk_parser_app/source_adapters.py

@@ -108,6 +108,7 @@ class SiteParserClient:
             "config": config,
             "rucaptcha_token": self.rucaptcha_token or None,
             "browser_state": runtime_state.get("browser_state"),
+            "browser_user_agent": runtime_state.get("browser_user_agent"),
         }
         try:
             async with self.session.post(
@@ -144,4 +145,11 @@ class SiteParserClient:
             ]
             items.append(SourceItem(external_id, url, text, _posted_at(raw.get("published_at")), media, raw))
         state = data.get("browser_state")
-        return items, ({"browser_state": state} if isinstance(state, dict) else None)
+        return items, (
+            {
+                "browser_state": state,
+                "browser_user_agent": str(data.get("browser_user_agent") or "") or None,
+            }
+            if isinstance(state, dict)
+            else None
+        )