Initial commit: Aurora Moments self-hosted photo/video sharing platform

Django/DRF + PostgreSQL/Redis/Celery backend with accounts, library,
moments, and notifications apps; React/TypeScript/Vite frontend with
Instagram-style sidebar nav, feed, profiles, nested comment replies,
notifications, and photo/video upload with ffmpeg-generated posters.

Co-Authored-By: Claude Sonnet 5 <[email protected]>

api/apps/moments/admin.py

@@ -0,0 +1,19 @@
+from django.contrib import admin
+
+from .models import Comment, Moment, MomentItem, Reaction
+
+
+class MomentItemInline(admin.TabularInline):
+    model = MomentItem
+    extra = 0
+
+
+@admin.register(Moment)
+class MomentAdmin(admin.ModelAdmin):
+    list_display = ("id", "owner", "audience", "created_at")
+    list_filter = ("audience",)
+    inlines = [MomentItemInline]
+
+
+admin.site.register(Comment)
+admin.site.register(Reaction)