fix: encode body of translation updating, reduce p margin in prose

apps/api/src/routes/agent/agent.ts

@@ -4,7 +4,7 @@ import { authMiddleware } from '@api/middlewares/auth';
 import { orgMemberMiddleware } from '@api/middlewares/org-member';
 import { orgAdminMiddleware } from '@api/middlewares/org-admin';
 import { authOrApiKeyMiddleware } from '@api/middlewares/auth-or-api-key';
-import { agentContentTypeRewrite } from '@api/middlewares/agent-content-type';
+import { b64EnvelopeRewrite } from '@api/middlewares/b64-envelope';
 import { handleError, AppError } from '@api/utils/errors';
 import { zValidator } from '@hono/zod-validator';
 import { streamText, stepCountIs, convertToModelMessages } from 'ai';
@@ -690,7 +690,7 @@ const agentCoreRouter = new Hono()
   });
 
 export const agentRouter = new Hono()
-  .use('*', agentContentTypeRewrite)
+  .use('*', b64EnvelopeRewrite)
   .route('/', agentCoreRouter)
   .route('/history', agentHistoryRouter)
   .route('/runs', agentRunsRouter);