Add startup batch file for automatic LEGO Instructions Manager startup

start_lim.bat

@@ -0,0 +1,50 @@
+@echo off
+echo Starting LEGO Instructions Manager...
+cd /d E:\LIM
+
+REM Check if virtual environment exists
+if not exist "venv\" (
+    echo Creating virtual environment...
+    python -m venv venv
+    if errorlevel 1 (
+        echo Failed to create virtual environment
+        pause
+        exit /b 1
+    )
+)
+
+REM Activate virtual environment
+echo Activating virtual environment...
+call venv\Scripts\activate.bat
+if errorlevel 1 (
+    echo Failed to activate virtual environment
+    pause
+    exit /b 1
+)
+
+REM Install/update requirements if requirements.txt exists
+if exist "requirements.txt" (
+    echo Installing/updating dependencies...
+    pip install -r requirements.txt
+    if errorlevel 1 (
+        echo Failed to install dependencies
+        pause
+        exit /b 1
+    )
+)
+
+REM Initialize database if needed
+if not exist "instance\lego_instructions.db" (
+    echo Initializing database...
+    python -c "from app import create_app, db; app = create_app(); app.app_context().push(); db.create_all()"
+)
+
+REM Start the application
+echo Starting Flask application...
+python run.py
+
+REM Keep window open if there's an error
+if errorlevel 1 (
+    echo Application stopped with an error
+    pause
+)