v0.7.10 - Fixed api errors in accepting : in subscriptions

src/subscriptions.c

@@ -135,11 +135,11 @@ static int validate_subscription_id(const char* sub_id) {
         return 0; // Empty or too long
     }
 
-    // Check for valid characters (alphanumeric, underscore, hyphen)
+    // Check for valid characters (alphanumeric, underscore, hyphen, colon)
     for (size_t i = 0; i < len; i++) {
         char c = sub_id[i];
         if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
-              (c >= '0' && c <= '9') || c == '_' || c == '-')) {
+              (c >= '0' && c <= '9') || c == '_' || c == '-' || c == ':')) {
             return 0; // Invalid character
         }
     }