Fix per-album limit calculation in combined mode

Fixed Jinja2 operator precedence issue where `limit | int // count | int`
was being parsed ambiguously. Added explicit parentheses to ensure correct
floor division: `((limit | int) // (count | int))`.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

manifest.json

@@ -1,3 +1,3 @@
 {
-  "version": "1.22.5"
+  "version": "1.22.6"
 }