fix compiler warnings

crypto.c

@@ -56,7 +56,7 @@
 static void *get_blob_check_bits(JSContext *js, JSValue val, size_t expected_bits, const char *name) {
     size_t bits;
     void* result = js_get_blob_data_bits(js, &bits, val);
-    if (result == -1) {
+    if (result == (void *)-1) {
         return NULL; // Exception already thrown by js_get_blob_data_bits
     }
 
@@ -70,7 +70,7 @@ static void *get_blob_check_bits(JSContext *js, JSValue val, size_t expected_bit
 // Helper to get any blob data (checking it is a stoned blob)
 static void *get_blob_any(JSContext *js, JSValue val, size_t *out_bits, const char *name) {
     void *result = js_get_blob_data_bits(js, out_bits, val);
-    if (result == -1)
+    if (result == (void *)-1)
         return NULL;
     return result;
 }