fix(team): read and write .git/info/exclude as UTF-8

core/team/worktree.py

@@ -131,12 +131,12 @@ def _install_team_exclude(self) -> None:
         info = common / "info"
         info.mkdir(parents=True, exist_ok=True)
         exclude = info / "exclude"
-        existing = exclude.read_text() if exclude.exists() else ""
+        existing = exclude.read_text(encoding="utf-8") if exclude.exists() else ""
         if _EXCLUDE_BEGIN in existing:
             return  # already installed
         block = "\n".join((_EXCLUDE_BEGIN, *_TEAM_EXCLUDE, _EXCLUDE_END))
         sep = "" if not existing or existing.endswith("\n") else "\n"
-        exclude.write_text(f"{existing}{sep}{block}\n")
+        exclude.write_text(f"{existing}{sep}{block}\n", encoding="utf-8")
 
     def create(self, worker_id: str) -> str:
         """Create an isolated worktree on a fresh branch for ``worker_id``."""
@@ -241,10 +241,10 @@ def _remove_team_exclude(self) -> None:
         exclude = common / "info" / "exclude"
         if not exclude.exists():
             return
-        text = exclude.read_text()
+        text = exclude.read_text(encoding="utf-8")
         if _EXCLUDE_BEGIN not in text:
             return
         before, _, rest = text.partition(_EXCLUDE_BEGIN)
         _, _, after = rest.partition(_EXCLUDE_END)
         cleaned = (before.rstrip("\n") + "\n" + after.lstrip("\n")).strip("\n")
-        exclude.write_text(cleaned + "\n" if cleaned else "")
+        exclude.write_text(cleaned + "\n" if cleaned else "", encoding="utf-8")

tests/test_team_worktree.py

@@ -119,3 +119,20 @@ def test_team_exclude_is_local_idempotent_and_reverted(tmp_path):
     text = exclude.read_text()
     assert _EXCLUDE_BEGIN not in text  # our block gone
     assert "user-secret.txt" in text  # the user's rule preserved
+
+
+def test_team_exclude_keeps_non_ascii_user_rules(tmp_path):
+    m = _mgr(tmp_path)
+    m.ensure_base()
+    exclude = m.base / ".git" / "info" / "exclude"
+    m.cleanup_all()
+    # Users write their own exclude rules as UTF-8. Such a rule must survive
+    # install/remove whatever the locale encoding is: cp1252, the Windows
+    # default, cannot even decode these bytes.
+    original = "数据/\n".encode() + exclude.read_bytes()
+    exclude.write_bytes(original)
+
+    m.ensure_base()
+    assert "数据/" in exclude.read_text(encoding="utf-8")
+    m.cleanup_all()
+    assert exclude.read_bytes().splitlines() == original.splitlines()