fix: Make ,-prefixed internal command completion work reliably while typing on bub (#162)

Fixes #161

Signed-off-by: Frost Ming <me@frostming.com>

Author: frostming

src/bub/channels/cli/__init__.py

@@ -164,7 +164,7 @@ def _tool_sort_key(tool_name: str) -> tuple[str, str]:
         history_file.parent.mkdir(parents=True, exist_ok=True)
         history = FileHistory(str(history_file))
         tool_names = sorted((f",{name}" for name in REGISTRY), key=_tool_sort_key)
-        completer = WordCompleter(tool_names, ignore_case=True)
+        completer = WordCompleter(tool_names, ignore_case=True, sentence=True)
         return PromptSession(
             completer=completer,
             complete_while_typing=True,