- New table symbol_views_daily(code, view_date, views) via migration 004.
- POST /api/views/{code} UPSERTs and returns today_views; GET returns
today + last_7d + trend (last 7 days).
- Client dedupes via localStorage (views:logged map keyed by KST date) so a
given browser counts once per day per code; refresh/extra tabs don't inflate.
- PriceHero shows "오늘 N명이 봤어요" pill when viewsToday > 0.
Read-only social proof — Toss 의 종목 상세에서 익명 카운트로 진입 신호를 주는 패턴.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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