Store one prompt definition per ID

consumer_test_helpers_test.go

@@ -63,11 +63,12 @@ func simpleConfig(content string) promptkit.Config {
 			"profiles": map[string]any{"profile": map[string]any{
 				"endpoint": "http://example.test/v1", "model": "model",
 			}},
-			"prompts": map[string]any{"prompt": map[string]any{"1": map[string]any{
+			"prompts": map[string]any{"prompt": map[string]any{
+				"version":         "1",
 				"default_profile": "profile",
 				"messages":        []any{map[string]any{"role": "user", "content": content}},
 				"output":          map[string]any{"format": "text", "validation_mode": "none"},
-			}}},
+			}},
 		})},
 	}}
 }