fix: PR #259 レビュー指摘事項を修正

- SQLでuser_profiles.student_numberをusers.student_numberに修正し不要なJOINを削除
- UserIdsのvalidateタグからuuidを削除（openapi_types.UUIDに適用不可のため）
- sendToAdminのdefault: falseをスキーマに復活

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: newt239

document/bundle.gen.yml

@@ -3228,7 +3228,7 @@ components:
             type: string
             format: uuid
           x-oapi-codegen-extra-tags:
-            validate: 'omitempty,dive,uuid'
+            validate: 'omitempty,dive'
             ja: 送信先ユーザーID
         subject:
           type: string
@@ -3242,6 +3242,7 @@ components:
             ja: 本文
         sendToAdmin:
           type: boolean
+          default: false
           x-oapi-codegen-extra-tags:
             ja: 管理者用アドレスにも送信
     ResPostMail:

document/schemas/req_post_mail.yml

@@ -16,7 +16,7 @@ properties:
       type: string
       format: uuid
     x-oapi-codegen-extra-tags:
-      validate: omitempty,dive,uuid
+      validate: omitempty,dive
       ja: 送信先ユーザーID
   subject:
     type: string
@@ -30,5 +30,6 @@ properties:
       ja: 本文
   sendToAdmin:
     type: boolean
+    default: false
     x-oapi-codegen-extra-tags:
       ja: 管理者用アドレスにも送信

pkg/api/models.gen.go

@@ -1 +1 @@
-SELECT BIN_TO_UUID(users.id) AS user_id, user_profiles.student_number FROM users LEFT JOIN user_profiles ON users.id = user_profiles.user_id WHERE BIN_TO_UUID(users.id) IN /*userIds*/('00000000-0000-0000-0000-000000000000');
+SELECT BIN_TO_UUID(users.id) AS user_id, users.student_number FROM users WHERE BIN_TO_UUID(users.id) IN /*userIds*/('00000000-0000-0000-0000-000000000000');