前端增加3：4选择

backend/internal/billing/defaults.go

@@ -70,7 +70,7 @@ func evolinkDimensions() []ParameterDimension {
 	return []ParameterDimension{
 		{Key: "quality", BaselineValue: "medium", DefaultValue: "medium", Tiers: tiers("low", .11, "medium", 1.0, "high", 4.0)},
 		{Key: "resolution", BaselineValue: "1K", DefaultValue: "1K", Tiers: tiers("1K", 1.0, "2K", 4.0, "4K", 8.0)},
-		{Key: "aspectRatio", BaselineValue: "1:1", DefaultValue: "1:1", Tiers: tiers("1:1", 1.0, "4:3", 1.0, "16:9", 1.0, "9:16", 1.0)},
+		{Key: "aspectRatio", BaselineValue: "1:1", DefaultValue: "1:1", Tiers: tiers("1:1", 1.0, "4:3", 1.0, "3:4", 1.0, "16:9", 1.0, "9:16", 1.0)},
 		{Key: "referenceImageCount", BaselineValue: 0, DefaultValue: 0, Tiers: []ParameterTier{
 			{Value: 0, StandardFactor: 1, MarkupMultiplier: DefaultBillingMarkupMultiplier, Enabled: true},
 			{Value: "1–4", Match: map[string]any{"min": 1, "max": 4}, StandardFactor: 1, MarkupMultiplier: DefaultBillingMarkupMultiplier, Enabled: true},

backend/internal/billing/defaults_test.go

@@ -35,3 +35,24 @@ func TestDefaultBillingPriceRulesFreezeOfficialCatalogMatchKeys(t *testing.T) {
 		}
 	}
 }
+
+func TestDefaultEvoLinkBillingSupportsThreeByFourAspectRatio(t *testing.T) {
+	for _, rule := range DefaultBillingPriceRules() {
+		if rule.Provider != "evolink" || rule.Capability != "image.generate" {
+			continue
+		}
+		for _, dimension := range rule.Dimensions {
+			if dimension.Key != "aspectRatio" {
+				continue
+			}
+			for _, tier := range dimension.Tiers {
+				if tier.Value == "3:4" && tier.Enabled && tier.StandardFactor == 1 {
+					return
+				}
+			}
+			t.Fatal("evolink aspectRatio dimension does not contain an enabled 3:4 tier with factor 1")
+		}
+		t.Fatal("evolink billing rule does not contain an aspectRatio dimension")
+	}
+	t.Fatal("default evolink image billing rule is missing")
+}

backend/internal/billing/service_test.go

@@ -44,6 +44,25 @@ func TestServiceQuoteNormalizesPayloadAndSeedsDefaultsThroughOptionalCapability(
 	}
 }
 
+func TestServiceQuoteSupportsEvoLinkThreeByFourPreset(t *testing.T) {
+	store := &quoteStoreStub{rules: []PriceRule{{
+		ID: "evolink-3-4", Provider: "evolink", Capability: "image.generate", ReqKey: "gpt-image-2",
+		Unit: UnitImage, StandardUnitPriceFen: 34, MarkupMultiplier: 1.2, Enabled: true, Dimensions: evolinkDimensions(),
+	}}}
+	quote, err := NewService(store, nil).Quote(context.Background(), QuoteCommand{
+		Provider: "evolink", Capability: "image.generate", ReqKey: "gpt-image-2",
+		Payload: map[string]any{"input": map[string]any{
+			"width": 1728.0, "height": 2304.0, "quality": "medium",
+		}},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if quote.AmountFen != 41 || quote.Parameters["aspectRatio"] != "3:4" {
+		t.Fatalf("quote = %#v", quote)
+	}
+}
+
 func TestServiceQuoteDisabledReturnsNilWithoutAccessingRules(t *testing.T) {
 	store := &quoteStoreStub{failOnAccess: true}
 	quote, err := NewService(store, nil).SetEnabled(false).Quote(context.Background(), QuoteCommand{Provider: "seedance", Capability: "video.generate"})