Expose core metadata validation functions in public headers
diff --git a/package.json b/package.json
index 739195d..425a60d 100644
--- a/package.json
+++ b/package.json
@@ -329,6 +329,7 @@
     "src/core/surface/server.c",
     "src/core/surface/server_chttp2.c",
     "src/core/surface/server_create.c",
+    "src/core/surface/validate_metadata.c",
     "src/core/surface/version.c",
     "src/core/transport/byte_stream.c",
     "src/core/transport/chttp2/alpn.c",