feat: initialize aivideo project

backend/app/modules/pricing/schema.py

@@ -0,0 +1,15 @@
+from datetime import datetime
+
+from pydantic import BaseModel
+
+
+class PricingRulePayload(BaseModel):
+    rule_name: str
+    video_model_id: int
+    points_per_second: int
+    minimum_points: int
+    effective_at: datetime
+    expired_at: datetime | None = None
+    version_no: int = 1
+    status: int = 1
+