Split ingress keys into text/image protocols with Replicate model listing.

Add model input defaults (including prompt), workflow model editing, ingress API docs, and fix img2img image upload filenames for signed URLs.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/prediction/models_test.go

@@ -0,0 +1,27 @@
+package prediction
+
+import (
+	"testing"
+
+	"github.com/rose_cat707/luminary/internal/model"
+)
+
+func TestSplitOwnerName(t *testing.T) {
+	owner, name := splitOwnerName("luminary/flux-sdxl", "comfy-local")
+	if owner != "luminary" || name != "flux-sdxl" {
+		t.Fatalf("got %q/%q", owner, name)
+	}
+	owner, name = splitOwnerName("plain-model", "")
+	if owner != "luminary" || name != "plain-model" {
+		t.Fatalf("got %q/%q", owner, name)
+	}
+}
+
+func TestModelDescription(t *testing.T) {
+	if modelDescription(model.ModelEntry{WorkflowType: model.WorkflowImg2Img}) == "" {
+		t.Fatal("expected default img2img description")
+	}
+	if got := modelDescription(model.ModelEntry{DisplayName: "FLUX"}); got != "FLUX" {
+		t.Fatalf("got %q", got)
+	}
+}