회기 무발화 0턴 분리, 자기예측 락 불변식 및 TDD 회귀 검증 완료

apps/api/app/routes/admin.py

@@ -779,6 +779,24 @@ async def _runtime_health_metrics(*, db_ok: bool) -> RuntimeHealthMetrics:
     return metrics
 
 
+def _usage_daily_cost(
+    daily_buckets: dict[str, dict[str, int | float | list[UsageCostBasis]]],
+) -> list[AdminUsageDailyCost]:
+    return [
+        AdminUsageDailyCost(
+            day=day,
+            turns=int(values["turns"]),
+            tokens_in=int(values["tokens_in"]),
+            tokens_out=int(values["tokens_out"]),
+            cost_usd=round(float(values["cost_usd"]), 6),
+            cost_basis=_aggregate_cost_basis(
+                cast(list[UsageCostBasis], values["cost_bases"])
+            ),
+        )
+        for day, values in sorted(daily_buckets.items())
+    ]
+
+
 async def _usage_from_database(window_days: int) -> AdminUsageResponse:
     async with acquire(role="admin") as conn:
         total_row = await conn.fetchrow(
@@ -916,19 +934,7 @@ async def _usage_from_database(window_days: int) -> AdminUsageResponse:
         budget=_usage_budget(total_cost, total_cost_basis),
         evaluator_cache=_usage_evaluator_cache(),
         by_provider=all_breakdowns[:12],
-        daily_cost=[
-            AdminUsageDailyCost(
-                day=day,
-                turns=int(values["turns"]),
-                tokens_in=int(values["tokens_in"]),
-                tokens_out=int(values["tokens_out"]),
-                cost_usd=round(float(values["cost_usd"]), 6),
-                cost_basis=_aggregate_cost_basis(
-                    cast(list[UsageCostBasis], values["cost_bases"])
-                ),
-            )
-            for day, values in sorted(daily_buckets.items())
-        ],
+        daily_cost=_usage_daily_cost(daily_buckets),
     )
 
 
@@ -1321,19 +1327,7 @@ def _usage_from_runtime_store(window_days: int) -> AdminUsageResponse:
         budget=_usage_budget(total_cost, total_cost_basis),
         evaluator_cache=_usage_evaluator_cache(),
         by_provider=by_provider[:12],
-        daily_cost=[
-            AdminUsageDailyCost(
-                day=day,
-                turns=int(values["turns"]),
-                tokens_in=int(values["tokens_in"]),
-                tokens_out=int(values["tokens_out"]),
-                cost_usd=round(float(values["cost_usd"]), 6),
-                cost_basis=_aggregate_cost_basis(
-                    cast(list[UsageCostBasis], values["cost_bases"])
-                ),
-            )
-            for day, values in sorted(daily_buckets.items())
-        ],
+        daily_cost=_usage_daily_cost(daily_buckets),
     )