优化点1，2.

gui_support/config/create_empty_config.m

@@ -12,7 +12,6 @@ config.meta = struct( ...
     'version', '0.1');
 
 config.model = struct( ...
-    'modelflag', 1, ...
     'grid_model', 1, ...
     'flow_model', 1);
 
@@ -39,13 +38,9 @@ config.grid = struct( ...
     'cell_mid_coords', []);
 
 config.fracture = struct( ...
-    'input_style', 1, ...
     'input_content', {{}}, ...
     'f', [], ...
     'fellip', [], ...
-    'fractureLines', [], ...
-    'fractureHeights', [], ...
-    'flowBarrierFlags', [], ...
     'frac_information', [], ...
     'nf', 0);
 

gui_support/config/load_config_json.m

@@ -10,4 +10,4 @@ if ~exist(file_path, 'file')
 end
 
 json_text = fileread(file_path);
-config = jsondecode(json_text);
+config = normalize_config(jsondecode(json_text));

gui_support/config/load_config_mat.m

@@ -15,4 +15,4 @@ if ~isfield(data, 'config')
         'MAT file does not contain variable ''config'': %s', file_path);
 end
 
-config = data.config;
+config = normalize_config(data.config);

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