Release version 1.1.0 - Package quantity restriction feature

Added comprehensive package quantity restriction functionality that allows
limiting product purchases to predefined package sizes only.

Features:
- Global setting to enable package quantity restrictions
- Per-product override for quantity restrictions
- Automatic hiding of quantity input field when restricted
- Frontend validation with package selection UI
- Server-side cart validation
- User-friendly error messages
- Complete translations for all supported languages

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

.claude/settings.local.json

@@ -7,7 +7,8 @@
       "Bash(mkdir:*)",
       "Bash(composer init:*)",
       "Bash(composer install:*)",
-      "Bash(composer update:*)"
+      "Bash(composer update:*)",
+      "Bash(git add:*)"
     ]
   }
 }