Add nostr_bip39_get_wordlist() public accessor for BIP-39 wordlist

nostr_core/utils.c

@@ -1331,6 +1331,11 @@ static int find_word_index(const char* word) {
     return -1;
 }
 
+const char * const *nostr_bip39_get_wordlist(int *count) {
+    if (count) *count = 2048;
+    return BIP39_WORDLIST;
+}
+
 int nostr_bip39_mnemonic_from_bytes(const unsigned char* entropy, size_t entropy_len,
                                    char* mnemonic) {
     if (!entropy || !mnemonic || entropy_len < 16 || entropy_len > 32) return -1;

nostr_core/utils.h

@@ -24,6 +24,11 @@ void nostr_bytes_to_hex(const unsigned char *bytes, size_t len, char *hex);
 // Convert hexadecimal string to bytes
 int nostr_hex_to_bytes(const char *hex, unsigned char *bytes, size_t len);
 
+// Get the BIP-39 English wordlist (2048 words). Returns a pointer to a
+// static array; count is set to 2048 if non-NULL. The pointer is valid
+// for the lifetime of the process.
+const char * const *nostr_bip39_get_wordlist(int *count);
+
 // Base64 encoding function 
 size_t base64_encode(const unsigned char *data, size_t len, char *output,
                      size_t output_size);