fix(abaqus): map inline DS4 sets and reject beam sections

src/fesa/io/abaqus/domain_mapping_context.cpp

@@ -916,7 +916,8 @@ class DomainMappingContext::Impl {
             "BEAM GENERAL SECTION follows the part mesh and optional sets.");
         return;
       }
-      if (model_element_family_ == ElementFamily::kShell) {
+      if (model_element_family_ == ElementFamily::kShell ||
+          model_element_family_ == ElementFamily::kThermalShell) {
         InputFailure(
             "unsupported-mixed-element-model", block.location,
             block.canonical_name, "",
@@ -1006,7 +1007,14 @@ class DomainMappingContext::Impl {
   }
 
   void ParseElements(const KeywordBlock& block, RawPart& part) {
-    if (!ValidateParameters(block, {"TYPE"})) {
+    const auto* type_parameter = Parameter(block, "TYPE");
+    const bool thermal_block =
+        type_parameter && type_parameter->value &&
+        AsciiCaseInsensitiveEquals(*type_parameter->value, "DS4");
+    if (!ValidateParameters(block,
+                            thermal_block
+                                ? std::vector<std::string_view>{"TYPE", "ELSET"}
+                                : std::vector<std::string_view>{"TYPE"})) {
       return;
     }
     const auto* type = RequiredParameterValue(block, "TYPE");
@@ -1047,6 +1055,17 @@ class DomainMappingContext::Impl {
       return;
     }
     model_element_family_ = element_family;
+    std::optional<RawSet> inline_set;
+    if (Parameter(block, "ELSET")) {
+      const auto* name = RequiredParameterValue(block, "ELSET");
+      if (name == nullptr) return;
+      if (ContainsSetName(part.element_sets, *name)) {
+        InputFailure("duplicate-entity", block.location, block.canonical_name,
+                     *name, "Element-set names are unique within their part.");
+        return;
+      }
+      inline_set = RawSet{*name, {}, block.location};
+    }
     if (block.data.empty()) {
       InputFailure(element_family == ElementFamily::kShell
                        ? "invalid-shell-connectivity"
@@ -1105,8 +1124,12 @@ class DomainMappingContext::Impl {
                      "Element labels are unique within a part.");
         return;
       }
+      if (inline_set) inline_set->members.push_back(element.label);
       part.elements.push_back(std::move(element));
     }
+    // Inline membership follows the block's source rows and uses the same
+    // part-set namespace and section resolution as an explicit ELSET.
+    if (inline_set) part.element_sets.push_back(std::move(*inline_set));
   }
 
   void ParseShellSection(const KeywordBlock& block, RawPart& part) {