增加即梦图片5.0和视频2.5的能力

backend/internal/orchestration/settlement_test.go

@@ -52,6 +52,25 @@ func TestSettlementProcessorMarksMissingProviderUsageEstimated(t *testing.T) {
 	}
 }
 
+func TestSettlementProcessorUsesSeedance25RateFromJobReqKey(t *testing.T) {
+	state := &settlementStateStub{}
+	ledger := &settlementLedgerStub{}
+	advanced := seedanceSettlementJob(`{"usage":{"completionTokens":20000}}`, `{"status":"charged","amountFen":100,"markupMultiplier":1.2,"parameters":{"resolution":"720p"}}`)
+	advanced.ReqKey = billing.Seedance25Model
+	processor := NewSettlementProcessor(settlementProcessorStub{job: advanced}, ledger, state, time.Now)
+
+	got, err := processor.Advance(context.Background(), jobs.Job{ID: "job-1", Provider: "seedance", Status: jobs.StatusRunning})
+	if err != nil || ledger.calls != 1 || ledger.request.DeltaFen != 68 {
+		t.Fatalf("job=%#v request=%#v calls=%d err=%v", got, ledger.request, ledger.calls, err)
+	}
+	var snapshot map[string]any
+	_ = json.Unmarshal(got.Billing, &snapshot)
+	usage := snapshot["providerUsage"].(map[string]any)
+	if snapshot["amountFen"] != float64(168) || usage["model"] != billing.Seedance25Model || usage["tokenPriceFenPerMillion"] != float64(7000) {
+		t.Fatalf("billing snapshot = %#v", snapshot)
+	}
+}
+
 func TestSettlementProcessorQuotaExemptUpdatesSnapshotWithoutWalletAndIsIdempotent(t *testing.T) {
 	state := &settlementStateStub{}
 	ledger := &settlementLedgerStub{}