Add package sync workflow

Tools/Sync-BriskPackage.ps1

@@ -0,0 +1,69 @@
+param(
+    [string]$ProjectRoot = (Resolve-Path (Join-Path $PSScriptRoot "..")).Path
+)
+
+$ErrorActionPreference = "Stop"
+
+function Assert-PathExists {
+    param(
+        [string]$Path,
+        [string]$Description
+    )
+
+    if (-not (Test-Path -LiteralPath $Path)) {
+        throw "$Description not found: $Path"
+    }
+}
+
+function Reset-Directory {
+    param([string]$Path)
+
+    if (Test-Path -LiteralPath $Path) {
+        Remove-Item -LiteralPath $Path -Recurse -Force
+    }
+
+    New-Item -ItemType Directory -Path $Path | Out-Null
+}
+
+function Copy-DirectoryContents {
+    param(
+        [string]$Source,
+        [string]$Destination
+    )
+
+    Assert-PathExists -Path $Source -Description "Source directory"
+    Reset-Directory -Path $Destination
+
+    Get-ChildItem -LiteralPath $Source -Force | ForEach-Object {
+        Copy-Item -LiteralPath $_.FullName -Destination $Destination -Recurse -Force
+    }
+}
+
+$packageRoot = Join-Path $ProjectRoot "PackageSource/com.foldcc.cc-framework.BriskGameServer"
+$runtimeSource = Join-Path $ProjectRoot "Assets/BriskSdk/Runtime"
+$samplesSource = Join-Path $ProjectRoot "Assets/BriskSdk/Samples/QuickStart"
+$sceneSource = Join-Path $ProjectRoot "Assets/Scenes/BriskQuickStartScene.unity"
+$sceneMetaSource = Join-Path $ProjectRoot "Assets/Scenes/BriskQuickStartScene.unity.meta"
+
+Assert-PathExists -Path $packageRoot -Description "Package root"
+Assert-PathExists -Path $runtimeSource -Description "Runtime source"
+Assert-PathExists -Path $samplesSource -Description "Sample source"
+Assert-PathExists -Path $sceneSource -Description "Sample scene"
+Assert-PathExists -Path $sceneMetaSource -Description "Sample scene meta"
+
+$runtimeTarget = Join-Path $packageRoot "Runtime"
+$samplesTarget = Join-Path $packageRoot "Samples~/QuickStart"
+$samplesRootTarget = Join-Path $packageRoot "Samples~"
+
+Copy-DirectoryContents -Source $runtimeSource -Destination $runtimeTarget
+
+if (-not (Test-Path -LiteralPath $samplesRootTarget)) {
+    New-Item -ItemType Directory -Path $samplesRootTarget | Out-Null
+}
+
+Copy-DirectoryContents -Source $samplesSource -Destination $samplesTarget
+Copy-Item -LiteralPath $sceneSource -Destination $samplesTarget -Force
+Copy-Item -LiteralPath $sceneMetaSource -Destination $samplesTarget -Force
+
+Write-Host "Brisk package source synced."
+Write-Host "Package root: $packageRoot"