feat: ノートの閲覧にログイン必須にする設定 (#14799)

* wip

* wip

* wip

* Update packages/frontend/src/pages/note.vue

Co-authored-by: かっこかり <67428053+kakkokari-gtyih@users.noreply.github.com>

* wip

* Update WebhookTestService.ts

* Update privacy.vue

* wip

* rename

* Update locales/ja-JP.yml

Co-authored-by: Sayamame-beans <61457993+Sayamame-beans@users.noreply.github.com>

* 🎨

* wip

---------

Co-authored-by: かっこかり <67428053+kakkokari-gtyih@users.noreply.github.com>
Co-authored-by: Sayamame-beans <61457993+Sayamame-beans@users.noreply.github.com>

packages/backend/src/server/api/endpoints/notes/show.ts

@@ -26,6 +26,12 @@ export const meta = {
 			code: 'NO_SUCH_NOTE',
 			id: '24fcbfc6-2e37-42b6-8388-c29b3861a08d',
 		},
+
+		signinRequired: {
+			message: 'Signin required.',
+			code: 'SIGNIN_REQUIRED',
+			id: '8e75455b-738c-471d-9f80-62693f33372e',
+		},
 	},
 } as const;
 
@@ -44,11 +50,15 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private getterService: GetterService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const note = await this.getterService.getNote(ps.noteId).catch(err => {
+			const note = await this.getterService.getNoteWithUser(ps.noteId).catch(err => {
 				if (err.id === '9725d0ce-ba28-4dde-95a7-2cbb2c15de24') throw new ApiError(meta.errors.noSuchNote);
 				throw err;
 			});
 
+			if (note.user!.requireSigninToViewContents && me == null) {
+				throw new ApiError(meta.errors.signinRequired);
+			}
+
 			return await this.noteEntityService.pack(note, me, {
 				detail: true,
 			});