test(adapters): add backslash middle four dots test in sanitize_path

Verify that sanitize_path preserves backslash-bounded '....' directory
components (e.g. '\a\....\b\' -> 'a/..../b') accurately.

Author: hsusul

crates/lore-core/src/adapters/common.rs

@@ -469,6 +469,7 @@ mod tests {
         assert_eq!(sanitize_path(r"\a\.\b\"), "a/b");
         assert_eq!(sanitize_path(r"\a\..\b\"), "b");
         assert_eq!(sanitize_path(r"\a\...\b\"), "a/.../b");
+        assert_eq!(sanitize_path(r"\a\....\b\"), "a/..../b");
         assert_eq!(sanitize_path(r"a/b\c/d\file.rs"), "a/b/c/d/file.rs");
         assert_eq!(sanitize_path("///"), "");
         assert_eq!(sanitize_path(r"\\\"), "");