test(stack-encrypt): refuse a match query twin whose bf repeats a position

The mutants gate found twin_query_bits' strictly-ascending check untested: no case repeated a position, so < and <= read the same. The twin refusal list now holds {"bf":[5,5]}.

Author: coderdan

packages/stack-encrypt/src/dynamic/query.rs

@@ -2205,6 +2205,7 @@ mod tests {
         for refused in [
             br#"{"bf":[]}"#.as_slice(),
             br#"{"bf":[5,1]}"#,
+            br#"{"bf":[5,5]}"#,
             br#"{"bf":[1,2048]}"#,
             br#"{"bf":[-1]}"#,
             br#"{"hm":"00"}"#,