Add dev-prod harmonize tool for bidirectional catalog and image sync.

Schema migrates dev to prod only; catalog rows merge by updated_at and images by mtime with union merge and conflict reporting.

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

infra/scripts/harmonize-images.ps1

@@ -0,0 +1,27 @@
+# Map SMB share for harmonize image step (optional wrapper).
+param(
+    [switch]$SkipConfirm
+)
+
+$ErrorActionPreference = "Stop"
+. (Join-Path $PSScriptRoot "lib\Deploy-CliResult.ps1")
+
+$smbRoot = "\\192.168.10.122\Gallery"
+if ($env:SMB_USER -and $env:SMB_PASSWORD) {
+    Write-Host "Mapping $smbRoot ..."
+    net use $smbRoot /user:$env:SMB_USER $env:SMB_PASSWORD 2>&1 | Out-Host
+} elseif (-not (Test-Path $smbRoot)) {
+    Write-Warning "Cannot access $smbRoot (not authenticated)."
+    Write-Warning "Map the share first or set `$env:SMB_USER and `$env:SMB_PASSWORD."
+}
+
+$npmArgs = @('run', 'harmonize:images')
+if ($args.Count -gt 0) {
+    $npmArgs += '--'
+    $npmArgs += $args
+}
+
+$RepoRoot = (Resolve-Path (Join-Path $PSScriptRoot "..\..")).Path
+Set-Location $RepoRoot
+& npm @npmArgs
+exit $LASTEXITCODE