Add UI Toolkit capture request contract

packages/org.gamecult.eve.unity-uitoolkit/eve-runtime-capability.json

@@ -207,7 +207,8 @@
         "publishProof": "Unity editor or batchmode capture artifact is attached to the runtime conformance report from EveUnity."
       },
       "evidencePaths": [
-        "packages/org.gamecult.eve.unity-uitoolkit/eve-runtime-capability.json"
+        "packages/org.gamecult.eve.unity-uitoolkit/eve-runtime-capability.json",
+        "scripts/build-uitoolkit-capture-request.ps1"
       ],
       "pendingProofs": [
         "Unity batchmode or editor capture artifact attached to the runtime conformance report."

scripts/build-uitoolkit-capture-request.ps1

@@ -0,0 +1,43 @@
+param(
+  [Parameter(Mandatory = $true)]
+  [string] $AdvertisementPath,
+  [string] $SurfaceId = "",
+  [string] $OutputPath = "artifacts\uitoolkit-capture\request.json",
+  [string] $Stamp = "latest"
+)
+
+$ErrorActionPreference = "Stop"
+$repoRoot = Split-Path -Parent $PSScriptRoot
+$capabilityPath = Join-Path $repoRoot "packages\org.gamecult.eve.unity-uitoolkit\eve-runtime-capability.json"
+$capability = Get-Content -Raw $capabilityPath | ConvertFrom-Json
+$advertisement = Get-Content -Raw $AdvertisementPath | ConvertFrom-Json
+$contract = $capability.lifecycle.capture.captureContract
+$surface = @($advertisement.surfaces) | Where-Object {
+  ([string]::IsNullOrWhiteSpace($SurfaceId) -or $_.surfaceId -eq $SurfaceId) -and
+  @($_.worldInteraction.loweringTargets) -contains $contract.targetId
+} | Select-Object -First 1
+
+if ($null -eq $surface) {
+  throw "Provider does not advertise a $($contract.targetId) surface: $SurfaceId"
+}
+
+$absoluteOutput = if ([IO.Path]::IsPathRooted($OutputPath)) { $OutputPath } else { Join-Path $repoRoot $OutputPath }
+$request = [ordered]@{
+  schema = $contract.requestSchema
+  ownerRepo = $contract.ownerRepo
+  runtimeId = $contract.runtimeId
+  targetId = $contract.targetId
+  providerId = $advertisement.providerId
+  surfaceId = $surface.surfaceId
+  projectionKind = $surface.worldInteraction.projectionKind
+  commandBoundary = $surface.worldInteraction.commandBoundary
+  receiptSchema = $surface.worldInteraction.receiptSchema
+  captureKind = $contract.captureKind
+  artifactKind = $contract.artifactKind
+  artifactPath = $contract.artifactPattern.Replace('{stamp}', $Stamp)
+  sourceAdvertisementPath = $AdvertisementPath
+}
+
+New-Item -ItemType Directory -Force -Path (Split-Path -Parent $absoluteOutput) | Out-Null
+$request | ConvertTo-Json -Depth 16 | Set-Content -LiteralPath $absoluteOutput
+Write-Host $absoluteOutput