优化点1，2.

gui_support/config/normalize_config.m

@@ -0,0 +1,53 @@
+function config = normalize_config(config)
+%NORMALIZE_CONFIG Normalize legacy GUI/runtime config to the current schema.
+
+if nargin == 0 || isempty(config)
+    config = create_empty_config();
+    return;
+end
+
+defaults = create_empty_config();
+config = merge_struct_defaults(config, defaults);
+
+config.model.grid_model = first_nonempty_scalar(config.model.grid_model, 1);
+config.model.flow_model = first_nonempty_scalar(config.model.flow_model, 1);
+
+legacy_model_fields = {'modelflag'};
+legacy_fracture_fields = {'input_style', 'fractureLines', 'fractureHeights', 'flowBarrierFlags'};
+
+for i = 1:numel(legacy_model_fields)
+    field_name = legacy_model_fields{i};
+    if isfield(config.model, field_name)
+        config.model = rmfield(config.model, field_name);
+    end
+end
+
+for i = 1:numel(legacy_fracture_fields)
+    field_name = legacy_fracture_fields{i};
+    if isfield(config.fracture, field_name)
+        config.fracture = rmfield(config.fracture, field_name);
+    end
+end
+end
+
+function s = merge_struct_defaults(s, defaults)
+default_fields = fieldnames(defaults);
+for i = 1:numel(default_fields)
+    field_name = default_fields{i};
+    if ~isfield(s, field_name) || isempty(s.(field_name))
+        s.(field_name) = defaults.(field_name);
+    elseif isstruct(defaults.(field_name)) && isstruct(s.(field_name))
+        s.(field_name) = merge_struct_defaults(s.(field_name), defaults.(field_name));
+    end
+end
+end
+
+function value = first_nonempty_scalar(raw_value, fallback)
+if isempty(raw_value)
+    value = fallback;
+elseif isscalar(raw_value)
+    value = raw_value;
+else
+    value = raw_value(1);
+end
+end