feat: initialize aivideo project

backend/app/modules/growth_rules/repository.py

@@ -0,0 +1,15 @@
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from app.models.entities import GrowthRewardRule
+
+
+class GrowthRulesRepository:
+    def __init__(self, db: Session) -> None:
+        self.db = db
+
+    def get_rule(self, rule_type: str) -> GrowthRewardRule | None:
+        return self.db.scalar(
+            select(GrowthRewardRule).where(GrowthRewardRule.rule_type == rule_type)
+        )
+