Add shared D&D entity reconciliation support

internal/modules/dnd/shared/entityreconcile/schema.go

@@ -0,0 +1,31 @@
+package entityreconcile
+
+import (
+	"gitea.maximumdirect.net/eric/notarius/internal/framework/llm"
+)
+
+const (
+	ResponseSchemaKey  = llm.ResponseSchemaKey("dnd_entity_reconcile_llm")
+	ResponseSchemaID   = "notarius.dnd.entity_reconcile.llm"
+	ResponseSchemaName = "notarius_dnd_entity_reconcile_llm_v1"
+	SchemaVersion      = "v1"
+	SchemaAssetPath    = "assets/schemas/dnd_entity_reconcile_llm.v1.json"
+)
+
+// LoadResponseSchema returns the shared private duplicate-group response
+// contract. It is intentionally separate from durable artifact schemas.
+func LoadResponseSchema() (llm.ResponseSchema, error) {
+	return llm.LoadResponseSchema(embeddedAssets, llm.ResponseSchemaDefinition{
+		Key:       ResponseSchemaKey,
+		ID:        ResponseSchemaID,
+		Version:   SchemaVersion,
+		Name:      ResponseSchemaName,
+		AssetPath: SchemaAssetPath,
+	})
+}
+
+// RegisterSchemaAssets makes the shared private response schema available to
+// prompt preparation. A family registrar can register it once for all consumers.
+func RegisterSchemaAssets(registry *llm.AssetRegistry) error {
+	return registry.RegisterSchemaFS(embeddedAssets, "assets/schemas")
+}