One ProfileGenderField (女 / 男 / 不填, 44px, one hint line) in the
people-archive edit form (saved with the form, 不填 → null) and in
设置 → 个人资料 for the owner (saves on its own PATCH; birth-data saves never
send gender). The detail card shows 性别 (未填 when empty). Not asked in
onboarding. DESIGN/VOICE updated; 390/1280 screenshots with fictional data.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017eEAG8HD3mm8gsKXgk8uU8
