Completed refactoring to separate nip files, and updating build.sh

nostr_core/nip011.c

@@ -3,11 +3,11 @@
  */
 
 #include "nip011.h"
-#include "nip005.h"  // For HTTP functionality
 #include "../cjson/cJSON.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include "../nostr_core/nostr_common.h"
 
 #ifndef DISABLE_NIP05 // NIP-11 uses the same HTTP infrastructure as NIP-05