Add VIP cards and the VIP panel (mt_vip)

Cards 38001 (7 days) and 38002 (30 days) extend all seven original premium
services of the account; the server side is metin2-server port_premium.h
(docs/FEATURE-VIP.md).

- mt_vip: /mt_vip 1 status, VIP button by the minimap, remaining time per
  service, chat line on card use.
- tools/server/vip-card: 40250 ships both cards with size 0 (two share a
  cell, neither moves); give them one cell, stacking, a log and no NPC sale,
  and name them on the server.
- locale_proto_patch: optional item shape table (size, flags, anti flags)
  so the client proto matches; data/zh_40250/item_shapes_server.tsv.
- Item mall (9010): 7 days 5,000,000, 30 days 18,000,000 gold.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

scripts/build_zh_locale.py

@@ -350,11 +350,15 @@ def build(en: Path, zh: Path, output: Path, client_base: Path,
         limits = names_dir / "item_limits_server.tsv"
         if (names_dir / "item_stones_server.tsv").is_file() and not limits.is_file():
             raise ValueError("stone overlay requires the item limits table argument")
+        if (names_dir / "item_shapes_server.tsv").is_file() and not (names_dir / "item_stones_server.tsv").is_file():
+            raise ValueError("item shapes require the stone overlay argument")
         result = subprocess.run(
             [str(proto_tool), str(en / "item_proto"), str(en / "mob_proto"),
              str(item_names), str(mob_names), str(locale_dir / "item_proto"),
              str(locale_dir / "mob_proto")] + ([str(limits)] if limits.is_file() else [])
              + ([str(names_dir / "item_stones_server.tsv")] if (names_dir / "item_stones_server.tsv").is_file() else []),
+             # item_shapes_server.tsv follows the stone overlay (positional): size and flags of new-use items.
+             + ([str(names_dir / "item_shapes_server.tsv")] if (names_dir / "item_shapes_server.tsv").is_file() else []),
             check=True, capture_output=True, text=True,
         )
         report["proto"] = {