Fix harmonize:images thumb rebuild and allow oversized museum scans.

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

Documentation/environments.md

@@ -341,7 +341,7 @@ For **incremental** dev ↔ prod merge (both sides edited), use [harmonize-dev-p
 | `npm run devtoprod:db:restore` | Dev PC PowerShell | Restore into prod |
 | `npm run harmonize` | Dev PC PowerShell | Bidirectional catalog + image merge — [harmonize-dev-prod.md](harmonize-dev-prod.md) |
 | `npm run harmonize:db` | Dev PC PowerShell | DB merge only |
-| `npm run harmonize:images` | Dev PC PowerShell | Image merge only |
+| `npm run harmonize:images` | Dev PC PowerShell | Image merge + regenerate thumbs on both sides |
 
 ## Image sync