feat(scripts): add cross-platform tosutil installers

- Add Windows PowerShell installer with SHA256 verification and PATH setup
- Add macOS installer with arch detection and quarantine removal
- Enhance Linux installer with amd64/arm64 architecture detection
- Rename macOS migrate_remote.sh to migrate-remote.sh

Windows/InstallTosutil.ps1

@@ -0,0 +1,102 @@
+# Requires -RunAsAdministrator
+[CmdletBinding()]
+param()
+
+$ErrorActionPreference = "Stop"
+
+# Architecture Check (Only AMD64 / 64-bit Intel/AMD is supported)
+$arch = $env:PROCESSOR_ARCHITECTURE
+if ($arch -ne "AMD64") {
+    Write-Error "Error: tosutil for Windows only supports AMD64 architecture. Detected architecture: $arch"
+    exit 1
+}
+
+# Configuration & URLs
+$binUrl = "https://m645b3e1bb36e-mrap.mrap.accesspoint.tos-global.volces.com/windows/tosutil"
+$shaUrl = "https://m645b3e1bb36e-mrap.mrap.accesspoint.tos-global.volces.com/windows/tosutil.sha256sum"
+
+$installDir = "$env:ProgramFiles\tosutil"
+$targetExe = Join-Path $installDir "tosutil.exe"
+
+# Helper function to print and run commands
+function Invoke-LoggedCommand {
+    param([string]$CommandText, [scriptblock]$Action)
+    Write-Host ">> Running: $CommandText" -ForegroundColor Cyan
+    & $Action
+}
+
+# Create Temporary Workspace
+$tempDir = Join-Path $env:TEMP ([System.IO.Path]::GetRandomFileName())
+New-Item -ItemType Directory -Path $tempDir | Out-Null
+
+try {
+    Write-Host "=== Starting tosutil installation for Windows (AMD64) ===" -ForegroundColor Green
+
+    $tempBin = Join-Path $tempDir "tosutil.exe"
+    $tempSha = Join-Path $tempDir "tosutil.sha256sum"
+
+    # Download binary & checksum
+    Write-Host "`n[1/5] Downloading tosutil binary and SHA256 checksum..." -ForegroundColor Yellow
+    Invoke-LoggedCommand "Invoke-WebRequest -Uri '$binUrl' -OutFile '$tempBin'" {
+        Invoke-WebRequest -Uri $binUrl -OutFile $tempBin -UseBasicParsing
+    }
+    Invoke-LoggedCommand "Invoke-WebRequest -Uri '$shaUrl' -OutFile '$tempSha'" {
+        Invoke-WebRequest -Uri $shaUrl -OutFile $tempSha -UseBasicParsing
+    }
+
+    # Verify SHA256
+    Write-Host "`n[2/5] Verifying SHA256 checksum..." -ForegroundColor Yellow
+    $rawExpected = (Get-Content -Path $tempSha -Raw).Trim()
+    $expectedHash = ($rawExpected -split '\s+')[0].ToLowerInvariant()
+
+    $computedHash = (Get-FileHash -Path $tempBin -Algorithm SHA256).Hash.ToLowerInvariant()
+    Write-Host ">> Expected: $expectedHash"
+    Write-Host ">> Actual:   $computedHash"
+
+    if ($computedHash -ne $expectedHash) {
+        Write-Error "SHA256 checksum verification failed!"
+        exit 1
+    }
+    Write-Host "SHA256 verification passed." -ForegroundColor Green
+
+    # Install binary
+    Write-Host "`n[3/5] Installing binary to $targetExe..." -ForegroundColor Yellow
+    if (-not (Test-Path $installDir)) {
+        Invoke-LoggedCommand "New-Item -ItemType Directory -Path '$installDir'" {
+            New-Item -ItemType Directory -Path $installDir | Out-Null
+        }
+    }
+    Invoke-LoggedCommand "Move-Item -Force -Path '$tempBin' -Destination '$targetExe'" {
+        Move-Item -Force -Path $tempBin -Destination $targetExe
+    }
+
+    # Add to System PATH
+    Write-Host "`n[4/5] Updating system PATH environment variable..." -ForegroundColor Yellow
+    $machinePath = [Environment]::GetEnvironmentVariable("Path", [EnvironmentVariableTarget]::Machine)
+    if ($machinePath -split ';' -notcontains $installDir) {
+        Invoke-LoggedCommand "Add '$installDir' to Machine PATH" {
+            [Environment]::SetEnvironmentVariable("Path", "$machinePath;$installDir", [EnvironmentVariableTarget]::Machine)
+            $env:Path = "$env:Path;$installDir"
+        }
+    } else {
+        Write-Host "Target directory already present in PATH."
+    }
+
+    # Verify installation
+    Write-Host "`n[5/5] Checking installation..." -ForegroundColor Yellow
+    Invoke-LoggedCommand "& '$targetExe' version" {
+        & "$targetExe" version
+    }
+
+    Write-Host "`n========================================================" -ForegroundColor Green
+    Write-Host "✅ tosutil installed successfully to $targetExe." -ForegroundColor Green
+    Write-Host "========================================================" -ForegroundColor Green
+    Write-Host "`nNext Steps:"
+    Write-Host "1. Initialise and configure your credentials (in PowerShell or CMD):"
+    Write-Host '   tosutil config -i "$env:TOS_ACCESS_KEY" -k "$env:TOS_SECRET_KEY" -e "$env:TOS_ENDPOINT" -re "$env:TOS_REGION"' -ForegroundColor Cyan
+    Write-Host "`n2. For more detailed documentation, visit:"
+    Write-Host "   https://docs.volcengine.com/docs/6349/148775?lang=zh`n"
+
+} finally {
+    Remove-Item -Recurse -Force -Path $tempDir -ErrorAction SilentlyContinue
+}