feat: add candidate FreeCAD naming SDK and attachment oracles

Build and verify the candidate-only FreeCAD naming bridge and OCCT worker path, including three-stage StringHasher restoration. Add Datum, ShapeBinder, attachment-mode, and PartDesign structure oracles plus offline SDK build plans and CI boundary checks.

native/freecad-naming-probe/shims/Base/Console.h

@@ -1,3 +1,22 @@
 #pragma once
 
+#include <Base/Exception.h>
+
+struct FreeCadNamingProbeLogInstance
+{
+    bool isEnabled(int) const
+    {
+        return false;
+    }
+};
+
+inline FreeCadNamingProbeLogInstance freecad_naming_probe_log_instance;
+
+#define FC_LOGLEVEL_LOG 3
+#define FC_LOGLEVEL_TRACE 4
+#define FC_LOG_INSTANCE freecad_naming_probe_log_instance
 #define FC_LOG_LEVEL_INIT(...)
+#define FC_WARN(message) ((void)0)
+#define FC_ERR(message) ((void)0)
+#define FC_LOG(message) ((void)0)
+#define FC_TRACE(message) ((void)0)