feat: show owner info in admin pages

- Add Owner column to AdminRuns.tsx and AdminGenlockes.tsx
- Add owner filter dropdown to both admin pages
- Add owner field to GenlockeListItem schema (resolved from first leg's run)
- Update frontend types for GenlockeListItem

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/src/app/schemas/genlocke.py

@@ -1,10 +1,16 @@
 from datetime import datetime
+from uuid import UUID
 
 from app.schemas.base import CamelModel
 from app.schemas.game import GameResponse
 from app.schemas.pokemon import PokemonResponse
 
 
+class GenlockeOwnerResponse(CamelModel):
+    id: UUID
+    display_name: str | None = None
+
+
 class GenlockeCreate(CamelModel):
     name: str
     game_ids: list[int]
@@ -92,6 +98,7 @@ class GenlockeListItem(CamelModel):
     total_legs: int
     completed_legs: int
     current_leg_order: int | None = None
+    owner: GenlockeOwnerResponse | None = None
 
 
 class GenlockeDetailResponse(CamelModel):