feat: 接入起卦后端流程并完善积分扣减链路

backend/src/v1/points/schemas.py

@@ -0,0 +1,13 @@
+from __future__ import annotations
+
+from pydantic import BaseModel, ConfigDict, Field
+
+
+class PointsBalanceResponse(BaseModel):
+    model_config = ConfigDict(populate_by_name=True, serialize_by_alias=True)
+
+    balance: int = Field(ge=0)
+    frozen_balance: int = Field(alias="frozenBalance", ge=0)
+    available_balance: int = Field(alias="availableBalance", ge=0)
+    run_cost: int = Field(alias="runCost", gt=0)
+    can_run: bool = Field(alias="canRun")