[dev-ant]

Summary

• Raise the shared media upload timeout to 120 seconds and allow a 130-second browser response window for outfit uploads.
• Return stable outfit BFF errors: OUTFIT_PAYLOAD_TOO_LARGE (413), OUTFIT_UPLOAD_TIMEOUT (504), and OUTFIT_UPSTREAM_UNAVAILABLE (503), while preserving other upstream responses and multipart streaming.
• Show actionable outfit upload errors and backend comment errors; retain failed comment drafts and clear only after success.
• Bump the application version to 1.0.21.

Fixed plan

• User-approved plan: 의장 업로드·관리자 댓글 오류 복구 계획
• Revision: v1 approved in the implementation request on 2026-11-08.
• Base: origin/main@0ae70e4
• Implementation: 7e959d3

Verification

• Node 20.20.2 npm run verify after commit — PASS
• 99 Jest suites / 405 tests — PASS
• Typecheck, lint, dead-code check, and Next.js production build — PASS
• Independent Codex review — APPROVE, 0 findings after timeout-race remediation.
• git diff --check — PASS
• Pull-request CI — all 5 checks PASS.

Contracts

• Added stable BFF error codes for 413/504/503.
• Existing successful and non-413 upstream status/body behavior remains unchanged.
• Comment API request/response contracts are unchanged.
• No request-body buffering was added; the existing streamed request and multipart/auth headers remain intact.

Related rollout

• Infra: fix(nginx): raise outfit upload boundary devnogi-infra-prod#19
• Community: fix(comment): decouple comment persistence from Redis devnogi-community-server#208
• Merge/deployment are intentionally not performed by this task.