fix(search): correct FTS5 raw mode fallback test assertion

Update test_raw_mode_leading_wildcard_falls_back_to_safe to match the
actual Safe mode behavior: OR is a recognized FTS5 boolean operator and
passes through unquoted, so the expected output is '"*" OR "auth"' not
'"*" "OR" "auth"'. The previous assertion was incorrect since the Safe
mode operator-passthrough logic was added.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/search/fts.rs

@@ -257,7 +257,8 @@ mod tests {
     #[test]
     fn test_raw_mode_leading_wildcard_falls_back_to_safe() {
         let result = to_fts_query("* OR auth", FtsQueryMode::Raw);
-        assert_eq!(result, "\"*\" \"OR\" \"auth\"");
+        // Falls back to Safe mode; OR is an FTS5 operator so it passes through unquoted
+        assert_eq!(result, "\"*\" OR \"auth\"");
 
         let result = to_fts_query("*", FtsQueryMode::Raw);
         assert_eq!(result, "\"*\"");