fixed error shader crash

interfaces/Crafter.Build-Clang.cppm

@@ -32,6 +32,11 @@ export namespace Crafter {
         std::string result;
         bool repack;
         std::unordered_set<std::string> libs;
+        // Compile flags (typically -I include paths) the dep wants its
+        // consumers to see — sourced from its external dependencies' include
+        // dirs so headers a dep exposes in its public modules are reachable
+        // when a consumer #includes them directly. Propagates transitively.
+        std::unordered_set<std::string> publicCompileFlags;
     };
 
     struct Define {