refactor(reme): remove unused context methods and update config path default

reme/reme.py

@@ -547,12 +547,6 @@ class ReMe(Application):
         """Get the profile handler for the specified user."""
         return ProfileHandler(memory_target=user_name, profile_path=self.profile_path)
 
-    async def context_offload(self):
-        """working memory summary"""
-
-    async def context_reload(self):
-        """working memory retrieve"""
-
 
 def main():
     """Main entry point for running ReMe from command line."""

reme/reme_fb.py

@@ -23,7 +23,7 @@ class ReMeFb(Application):
         self,
         *args,
         working_dir: str = ".reme",
-        config_path: str = "fs",
+        config_path: str = "file",
         enable_logo: bool = True,
         log_to_console: bool = True,
         llm_api_key: str | None = None,