fix: start.bat/stop.bat fail on Chinese Windows cmd.exe

The .bat files were saved as UTF-8 with LF line endings and contained
Chinese characters in comments. cmd.exe on zh-CN Windows runs under
code page 936 (GBK), so it decoded the UTF-8 em dash (e2 80 94) and
subsequent Chinese bytes as invalid GBK, producing '文件名、目录名或
卷标语法不正确' before start.bat ever reached the PowerShell call.

Rewrite both launchers as ASCII-only with CRLF line endings so they
parse identically on any codepage.

Author: ouyyyyang

start.bat

@@ -1,18 +1,18 @@
-@echo off
-:: Screen Pilot — 双击启动
-:: Windows 会自动处理 PowerShell 执行策略，直接双击即可。
-
-cd /d "%~dp0"
-
-where pwsh >nul 2>&1
-if %errorlevel% equ 0 (
-    pwsh -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\dev\start-local-agent.ps1"
-) else (
-    powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\dev\start-local-agent.ps1"
-)
-
-if %errorlevel% neq 0 (
-    echo.
-    echo Something went wrong. Press any key to close...
-    pause >nul
-)
+@echo off
+:: Screen Pilot - double click to start.
+:: Windows handles the PowerShell execution policy automatically.
+
+cd /d "%~dp0"
+
+where pwsh >/dev/null 2>&1
+if %errorlevel% equ 0 (
+    pwsh -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\dev\start-local-agent.ps1"
+) else (
+    powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\dev\start-local-agent.ps1"
+)
+
+if %errorlevel% neq 0 (
+    echo.
+    echo Something went wrong. Press any key to close...
+    pause >/dev/null
+)

stop.bat

@@ -1,17 +1,17 @@
-@echo off
-:: Screen Pilot — 双击停止
-
-cd /d "%~dp0"
-
-where pwsh >nul 2>&1
-if %errorlevel% equ 0 (
-    pwsh -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\dev\stop-local-agent.ps1"
-) else (
-    powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\dev\stop-local-agent.ps1"
-)
-
-if %errorlevel% neq 0 (
-    echo.
-    echo Press any key to close...
-    pause >nul
-)
+@echo off
+:: Screen Pilot - double click to stop.
+
+cd /d "%~dp0"
+
+where pwsh >/dev/null 2>&1
+if %errorlevel% equ 0 (
+    pwsh -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\dev\stop-local-agent.ps1"
+) else (
+    powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0scripts\dev\stop-local-agent.ps1"
+)
+
+if %errorlevel% neq 0 (
+    echo.
+    echo Press any key to close...
+    pause >/dev/null
+)