HadTavern 0.01: Gemini/Claude fixes; UI _origId reuse; docs; .bat open

run_agentui.bat

@@ -8,7 +8,8 @@ if errorlevel 1 goto :fail
 pip install -r requirements.txt
 if errorlevel 1 goto :fail
 echo Starting НадTavern on http://127.0.0.1:%PORT%/
-start "НадTavern UI" python -c "import time,webbrowser,os; time.sleep(1); webbrowser.open('http://127.0.0.1:%s/ui/editor.html'%os.environ.get('PORT','7860'))"
+timeout /t 1 /nobreak >NUL
+start "" "http://127.0.0.1:%PORT%/ui/editor.html"
 python -m uvicorn agentui.api.server:app --host 127.0.0.1 --port %PORT% --log-level info
 if errorlevel 1 goto :fail
 goto :end