chore: import upstream snapshot with attribution

examples/ios/NativeSdkIOSExample/NativeSdkDyldShim.c

@@ -0,0 +1,18 @@
+// Zig's std.debug stack-trace symbolication (pulled in by the embed lib's
+// panic path) references `_dyld_get_image_header_containing_address`, which
+// the iOS SDK marks __API_UNAVAILABLE(ios). Provide the documented
+// replacement (dladdr) under the old symbol so the static lib links; it
+// only runs while formatting a panic trace. Mirrors the same shim in the
+// mobile-canvas example's ObjC host (examples/mobile-canvas/ios/main.m).
+
+#include <dlfcn.h>
+#include <mach-o/dyld.h>
+#include <stddef.h>
+
+const struct mach_header *_dyld_get_image_header_containing_address(const void *address) {
+    Dl_info info;
+    if (dladdr(address, &info) != 0 && info.dli_fbase != NULL) {
+        return (const struct mach_header *)info.dli_fbase;
+    }
+    return NULL;
+}