phase3: add normalized domain schema, admin, services, and multistage docker build

apps/stats/admin.py

@@ -0,0 +1,23 @@
+from django.contrib import admin
+
+from .models import PlayerSeason, PlayerSeasonStats
+
+
+@admin.register(PlayerSeason)
+class PlayerSeasonAdmin(admin.ModelAdmin):
+    list_display = ("player", "season", "team", "competition", "games_played", "minutes_played")
+    list_filter = ("season", "competition")
+    search_fields = ("player__full_name", "team__name", "competition__name", "season__label")
+
+
+@admin.register(PlayerSeasonStats)
+class PlayerSeasonStatsAdmin(admin.ModelAdmin):
+    list_display = (
+        "player_season",
+        "points",
+        "rebounds",
+        "assists",
+        "usage_rate",
+        "true_shooting_pct",
+    )
+    search_fields = ("player_season__player__full_name",)