feat: add offline Qt6 naming prerequisites and boundary gates

native/freecad-naming-probe/probe.cpp

@@ -0,0 +1,34 @@
+#include <emscripten/bind.h>
+
+#include <App/IndexedName.h>
+#include <App/MappedName.h>
+
+#include <stdexcept>
+#include <string>
+
+namespace
+{
+std::string freecadPrivateNamingSourceProbe()
+{
+    const Data::IndexedName indexed("Edge12");
+    if (!indexed || indexed.getIndex() != 12 || std::string(indexed.getType()) != "Edge") {
+        throw std::runtime_error("FreeCAD IndexedName source probe failed");
+    }
+
+    Data::MappedName name(indexed);
+    name += ";:M;CUT;:H2a:7,E";
+    long tag = 0;
+    int length = 0;
+    char type = 0;
+    const int position = name.findTagInElementName(&tag, &length, nullptr, &type);
+    if (position < 0 || tag != 0x2a || type != 'E') {
+        throw std::runtime_error("FreeCAD MappedName source probe failed");
+    }
+    return name.toString();
+}
+}  // namespace
+
+EMSCRIPTEN_BINDINGS(freecad_private_naming_source_probe)
+{
+    emscripten::function("freecadPrivateNamingSourceProbe", &freecadPrivateNamingSourceProbe);
+}