feat(filter): add tag logic toggle (OR/AND) for include tags filtering

Add a segmented toggle in the Filter Panel to switch between 'Any' (OR)
and 'All' (AND) logic when filtering by multiple include tags.

Changes:
- Backend: Add tag_logic field to FilterCriteria and ModelFilterSet
- Backend: Parse tag_logic parameter in model handlers
- Frontend: Add segmented toggle UI in filter panel header
- Frontend: Add interaction logic and state management for tag logic
- Add translations for all supported languages
- Add comprehensive tests for the new feature

Closes #802

locales/ja.json

@@ -223,7 +223,11 @@
             "noCreditRequired": "クレジット不要",
             "allowSellingGeneratedContent": "販売許可",
             "noTags": "タグなし",
-            "clearAll": "すべてのフィルタをクリア"
+            "clearAll": "すべてのフィルタをクリア",
+            "any": "いずれか",
+            "all": "すべて",
+            "tagLogicAny": "いずれかのタグに一致 (OR)",
+            "tagLogicAll": "すべてのタグに一致 (AND)"
         },
         "theme": {
             "toggle": "テーマの切り替え",