feat(ui,api,admin): sveltekit admin spa, usage by day/agent/conversation/model, rate limits, memory tree, turn snapshot

src/beaver_gateway/storage/__init__.py

@@ -22,6 +22,7 @@ from beaver_gateway.storage.models import (
     ConversationBinding,
     Delivery,
     InjectQueueItem,
+    RateLimit,
     Schedule,
     TelegramUpdate,
     Token,
@@ -38,6 +39,7 @@ __all__ = [
     "Delivery",
     "InjectQueueItem",
     "PostgresSessionStore",
+    "RateLimit",
     "Schedule",
     "TelegramUpdate",
     "Token",