refactor: improve browser session management in admin control

- Updated the admin control function to discard browser-use agents and overlays while retaining the browser window for user inspection.
- Enhanced error handling during cleanup of browser-use agents and sessions.
- Removed unnecessary dependency on `get_agent_extra_body` in the BrowserUseAdapter class, streamlining the configuration process.

Author: wehos

agent_server.py

@@ -1350,12 +1350,18 @@ async def admin_control(payload: Dict[str, Any]):
                     await Modules.computer_use_queue.get()
         except Exception:
             pass
-        # Close active browser-use sessions so the browser agent stops
+        # Discard browser-use agents/overlay but keep the browser window for user inspection
         try:
             if Modules.browser_use:
-                await Modules.browser_use._close_browser()
+                Modules.browser_use._stop_overlay()
+                Modules.browser_use._agents.clear()
+                try:
+                    if Modules.browser_use._browser_session is not None:
+                        await Modules.browser_use._remove_overlay(Modules.browser_use._browser_session)
+                except Exception:
+                    pass
         except Exception as e:
-            logger.warning(f"[Agent] Error closing browser-use session during end_all: {e}")
+            logger.warning(f"[Agent] Error cleaning browser-use agents during end_all: {e}")
         # Reset computer-use step history so stale context is cleared
         try:
             if Modules.computer_use:

brain/browser_use_adapter.py

@@ -6,7 +6,6 @@
 from pathlib import Path
 from typing import Any, Dict, List, Optional
 
-from config import get_agent_extra_body
 from utils.config_manager import get_config_manager
 
 logger = logging.getLogger(__name__)
@@ -310,7 +309,6 @@ def _build_llm(self, mode: str = "schema") -> Any:
         api_cfg = self._config_manager.get_model_api_config("agent")
         base_url = api_cfg.get("base_url", "") or ""
         model = api_cfg.get("model", "") or ""
-        extra_body = get_agent_extra_body(model)
         kwargs: Dict[str, Any] = dict(
             model=model,
             api_key=api_cfg.get("api_key"),
@@ -321,8 +319,6 @@ def _build_llm(self, mode: str = "schema") -> Any:
             remove_min_items_from_schema=False,
             remove_defaults_from_schema=False,
         )
-        if extra_body:
-            kwargs["extra_body"] = extra_body
         if mode == "text":
             kwargs["dont_force_structured_output"] = True
             kwargs["add_schema_to_system_prompt"] = True