Fix harmonize prod DB targeting and large-hall loading hangs.

Prod env files now win over root .env so harmonize:db can open gallery_prod after gallery_dev; tour_stops gains updated_at; halls no longer block the overlay on every painting texture. Docs cover the fixes and one-artist image pull from prod; Duccio painting assets synced from TrueNAS.

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

infra/scripts/harmonize.ps1

@@ -104,7 +104,9 @@ function Get-HarmonizeSteps {
     if ($null -ne $harmonize.schemaChanged) { $schemaChanged = [bool]$harmonize.schemaChanged }
     elseif ($null -ne $Raw.schemaChanged) { $schemaChanged = [bool]$Raw.schemaChanged }
 
-    $steps = @{
+    # Only these keys are orchestrated. Ignore release-profile keys (restoreProd, etc.)
+    # when falling back to devtoprod.config.json.
+    $steps = [ordered]@{
         backupDev = $true
         backupProd = $true
         schema = $schemaChanged
@@ -113,10 +115,21 @@ function Get-HarmonizeSteps {
         verify = $false
     }
 
-    $cfgSteps = $harmonize.steps
+    $allowed = @($steps.Keys)
+    $cfgSteps = $null
+    if ($null -ne $Raw.harmonize -and $null -ne $Raw.harmonize.steps) {
+        $cfgSteps = $Raw.harmonize.steps
+    }
+    elseif ($null -eq $Raw.harmonize -and $null -eq $Raw.profile -and $null -ne $Raw.steps) {
+        # Dedicated harmonize.config.json (no release "profile")
+        $cfgSteps = $Raw.steps
+    }
+
     if ($null -ne $cfgSteps) {
-        foreach ($key in $cfgSteps.PSObject.Properties.Name) {
-            $steps[$key] = [bool]$cfgSteps.$key
+        foreach ($key in $allowed) {
+            if ($null -ne $cfgSteps.$key) {
+                $steps[$key] = [bool]$cfgSteps.$key
+            }
         }
     }