Initial Navis client with NaiveProxy, profiles, ping and git updates

Co-authored-by: Cursor <cursoragent@cursor.com>

build.bat

@@ -0,0 +1,29 @@
+@echo off
+setlocal
+cd /d "%~dp0"
+
+echo Generating Windows icon resources...
+go run ./tools/mkico
+if errorlevel 1 exit /b 1
+
+where goversioninfo >nul 2>&1
+if errorlevel 1 (
+  go install github.com/josephspurrier/goversioninfo/cmd/goversioninfo@latest
+)
+
+goversioninfo -icon assets\navis.ico -o cmd\vpnapp\resource.syso versioninfo.json
+if errorlevel 1 exit /b 1
+
+echo Building Navis GUI and CLI...
+go build -ldflags="-H windowsgui -s -w" -o Navis.exe ./cmd/vpnapp
+if errorlevel 1 exit /b 1
+
+go build -ldflags="-s -w" -o vpnclient.exe ./cmd/vpnclient
+if errorlevel 1 exit /b 1
+
+echo.
+echo Done:
+echo   Navis.exe
+echo   vpnclient.exe
+echo   assets\navis.ico
+endlocal