Add branded email verification page with localization support

Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

packages/backend/src/server/ServerService.ts

@@ -239,27 +239,8 @@ export class ServerService implements OnApplicationShutdown {
 		});
 
 		fastify.get<{ Params: { code: string } }>('/verify-email/:code', async (request, reply) => {
-			const profile = await this.userProfilesRepository.findOneBy({
-				emailVerifyCode: request.params.code,
-			});
-
-			if (profile != null) {
-				await this.userProfilesRepository.update({ userId: profile.userId }, {
-					emailVerified: true,
-					emailVerifyCode: null,
-				});
-
-				this.globalEventService.publishMainStream(profile.userId, 'meUpdated', await this.userEntityService.pack(profile.userId, { id: profile.userId }, {
-					schema: 'MeDetailed',
-					includeSecrets: true,
-				}));
-
-				reply.code(200).send('Verification succeeded! メールアドレスの認証に成功しました。');
-				return;
-			} else {
-				reply.code(404).send('Verification failed. Please try again. メールアドレスの認証に失敗しました。もう一度お試しください');
-				return;
-			}
+			// Redirect to frontend page for verification
+			reply.redirect(`/verify-email/${request.params.code}`);
 		});
 
 		fastify.register(this.clientServerService.createServer);