feat: add local library and refresh interface

run.bat

@@ -0,0 +1,28 @@
+@echo off
+setlocal
+cd /d "%~dp0"
+
+rem Prevent an inherited PYTHONPATH/PYTHONHOME from another application
+rem (for example Hermes) from loading packages outside this project's .venv.
+set "PYTHONPATH="
+set "PYTHONHOME="
+
+if not exist ".venv\Scripts\python.exe" (
+    echo [ERROR] Virtual environment .venv was not found.
+    echo Create it and install dependencies first:
+    echo   py -3.12 -m venv .venv
+    echo   .venv\Scripts\python -m pip install fastapi uvicorn pydantic beautifulsoup4 lxml httpx deep-translator markdown bleach trafilatura python-multipart
+    pause
+    exit /b 1
+)
+
+".venv\Scripts\python.exe" main.py
+set "EXIT_CODE=%ERRORLEVEL%"
+
+if not "%EXIT_CODE%"=="0" (
+    echo.
+    echo [ERROR] Application stopped with code %EXIT_CODE%.
+    pause
+)
+
+exit /b %EXIT_CODE%