Quest action schemas with texts in seven languages

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

locale/schema_ja.properties

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+quests/schema/builtin/quest_status = クエストの状態
+quests/schema/builtin/quest_status_desc = クエストの段階を進める
+quests/schema/field/quest = クエスト
+quests/schema/field/status = ステータス値
+quests/schema/builtin/quest_tag = クエストのタグ
+quests/schema/builtin/quest_tag_desc = クエストで起きたことを記す
+quests/schema/field/tag = タグ
+quests/schema/builtin/quest_remove_tag = クエストのタグを外す
+quests/schema/builtin/quest_remove_tag_desc = 以前付けた印を外す
+quests/schema/builtin/quest_data_status = クエストの段階
+quests/schema/builtin/quest_data_status_desc = クエスト内の段階番号：日誌のどの文を出すか
+quests/schema/field/stage = 段階
+quests/schema/builtin/quest_notify = クエストの通知
+quests/schema/builtin/quest_notify_desc = クエスト名の通知