fix: keep pack order outside contested paths

Ranking contested core claims sorted the whole gap report, which
reordered every manifest. Only the claims on one contested path move now,
grouped where the first of them stood, and two spellings of a path are
one group where the filesystem folds case (RetroBat's 64DD_IPL_DEV.bin).

An entry without a destination (EmuDeck's system:md5 whitelist) no
longer counts as a pack path in verify, and step 5 prints one status for
counts and paths together. A full offline run compared all 12 archives
and 930 emulator packs path by path, every one equal.

scripts/verify.py

@@ -904,8 +904,10 @@ def _builder_placement(
     The builder walks the systems in name order and skips a path that a
     written file blocks as a directory, or the reverse: RetroArch declares
     SGB1.sfc and SGB1.sfc/program.rom, and only the first is in the pack.
-    Returns (path -> local copy written there, path -> copy or None for each
-    slot kept, a user_provided or external one included).
+    An entry without a destination (EmuDeck's system:md5 whitelist) is
+    judged but takes no path. Returns (path -> local copy written there,
+    path -> copy or None for each slot kept, a user_provided or external one
+    included).
     """
     from packpaths import _has_path_conflict, _register_path
 
@@ -915,6 +917,9 @@ def _builder_placement(
     folded: set[str] = set()
     parents: set[str] = set()
     for _sys_id, full, local in sorted(packed_order, key=lambda item: item[0]):
+        # EmuDeck's system:md5 entries name no file: the builder writes none.
+        if not full or full.endswith("/"):
+            continue
         if (
             full in occupied
             or (case_insensitive and full.lower() in folded)