Document prod schema migrate before restore and i18n search index fix.

Release runbook now describes default migrateProdSchema, auto-migrate safety guard, and troubleshooting for updated_at restore failures; i18n docs cover partial entity_translations index.

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

infra/deploy/devtoprod.config.example.json

@@ -21,7 +21,6 @@
     "message": "Release: weekly deploy",
     "stageAll": true
   },
-  "schemaChanged": false,
   "backupFile": "",
   "smb": {
     "host": "192.168.10.122",

infra/scripts/deploy-dev-to-prod.ps1

@@ -127,7 +127,7 @@ function Invoke-Step {
 }
 
 function Get-ProfileSteps {
-    param([string]$Profile, [bool]$SchemaChanged)
+    param([string]$Profile)
 
     $base = @{
         validateBuild = $false
@@ -367,8 +367,7 @@ $raw = Get-Content -LiteralPath $Config -Raw -Encoding UTF8
 $cfg = $raw | ConvertFrom-Json
 
 $profile = if ($cfg.profile) { $cfg.profile } else { 'full' }
-$schemaChanged = [bool]$cfg.schemaChanged
-$steps = Merge-Steps (Get-ProfileSteps -Profile $profile -SchemaChanged $schemaChanged) $cfg.steps
+$steps = Merge-Steps (Get-ProfileSteps -Profile $profile) $cfg.steps
 
 if ($cfg.autoConfirm) {
     $env:CONFIRM_PROD = '1'