Birthday & anniversary photo collections

- profiles get an optional birthday (MM-DD); photos of that person taken on the
  date are also copied into Birthdays/<person>/<year>/
- app-wide anniversaries (label + MM-DD); any photo taken on the date is copied
  into Anniversaries/<label>/<year>/ (including faceless photos and videos)
- copy (not move) so normal person/date sorting is preserved
- CaptureDate gains day; new collection path builder; scanner skips the new folders
- UI: birthday input in profile create/edit + new Anniversaries manager

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

docs/records/PhotoAI/timeline.md

@@ -11,3 +11,6 @@
 
 ## 2026-06-02
 - Auto development record created: development\2026-06-02_e-wiki-photoai-코딩-리뷰하고-설계적으로-더-최적화-할-수-있는-부분이-있는지-분석해줘_implementation.md
+
+## 2026-06-02
+- Auto discussion record created: discussions\2026-06-02_안현제님이-날-괴롭혀-어떻게-해야해-고소미-날려야하나-절차-알려줘.md