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/defaults.go

@@ -0,0 +1,62 @@
+package prediction
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/rose_cat707/luminary/internal/model"
+)
+
+func ParseInputDefaults(raw string) (map[string]any, error) {
+	if raw == "" || raw == "{}" {
+		return map[string]any{}, nil
+	}
+	var out map[string]any
+	if err := json.Unmarshal([]byte(raw), &out); err != nil {
+		return nil, err
+	}
+	if out == nil {
+		return map[string]any{}, nil
+	}
+	return out, nil
+}
+
+func effectiveDefault(d ParamDef, overrides map[string]any) (any, bool) {
+	if overrides != nil {
+		if v, ok := overrides[d.Name]; ok {
+			return v, true
+		}
+	}
+	if d.Default != nil {
+		return d.Default, true
+	}
+	return nil, false
+}
+
+func ValidateInputWithDefaults(wt model.WorkflowType, input map[string]any, overrides map[string]any) (map[string]any, error) {
+	defs := ParamsForWorkflowType(wt)
+	out := make(map[string]any, len(defs))
+	for _, d := range defs {
+		v, ok := input[d.Name]
+		if !ok || v == nil {
+			if def, has := effectiveDefault(d, overrides); has {
+				coerced, err := coerceValue(d, def)
+				if err != nil {
+					return nil, fmt.Errorf("%s: %w", d.Name, err)
+				}
+				out[d.Name] = coerced
+				continue
+			}
+			if d.Required {
+				return nil, fmt.Errorf("missing required field: %s", d.Name)
+			}
+			continue
+		}
+		coerced, err := coerceValue(d, v)
+		if err != nil {
+			return nil, fmt.Errorf("%s: %w", d.Name, err)
+		}
+		out[d.Name] = coerced
+	}
+	return out, nil
+}