Host: convert to proctocol to avoid forced inheritance

pkgs/clan-cli/clan_lib/ssh/host.py

@@ -1,24 +1,24 @@
 """Base Host interface for both local and remote command execution."""
 
 import logging
-from abc import ABC, abstractmethod
+from abc import abstractmethod
 from collections.abc import Iterator
 from contextlib import contextmanager
-from dataclasses import dataclass
+from typing import Protocol
 
 from clan_lib.cmd import CmdOut, RunOpts
 
 cmdlog = logging.getLogger(__name__)
 
 
-@dataclass(frozen=True)
+class Host(Protocol):
-class Host(ABC):
     """
     Abstract base class for host command execution.
     This provides a common interface for both local and remote hosts.
     """
 
-    command_prefix: str | None
+    @property
+    def command_prefix(self) -> str | None: ...
 
     @property
     @abstractmethod

pkgs/clan-cli/clan_lib/ssh/localhost.py

@@ -6,13 +6,12 @@ from dataclasses import dataclass, field
 
 from clan_lib.cmd import CmdOut, RunOpts, run
 from clan_lib.colors import AnsiColor
-from clan_lib.ssh.host import Host
 
 cmdlog = logging.getLogger(__name__)
 
 
 @dataclass(frozen=True)
-class LocalHost(Host):
+class LocalHost:
     """
     A Host implementation that executes commands locally without SSH.
     """
@@ -42,7 +41,7 @@ class LocalHost(Host):
         control_master: bool = True,
     ) -> CmdOut:
         """
-        Run a command locally instead of via SSH.
+        Run a command locally.
         """
         if opts is None:
             opts = RunOpts()

pkgs/clan-cli/clan_lib/ssh/remote.py

@@ -16,7 +16,6 @@ from clan_lib.cmd import CmdOut, RunOpts, run
 from clan_lib.colors import AnsiColor
 from clan_lib.errors import ClanError, indent_command  # Assuming these are available
 from clan_lib.nix import nix_shell
-from clan_lib.ssh.host import Host
 from clan_lib.ssh.host_key import HostKeyCheck, hostkey_to_ssh_opts
 from clan_lib.ssh.parse import parse_ssh_uri
 from clan_lib.ssh.sudo_askpass_proxy import SudoAskpassProxy
@@ -31,7 +30,7 @@ NO_OUTPUT_TIMEOUT = 20
 
 
 @dataclass(frozen=True)
-class Remote(Host):
+class Remote:
     address: str
     command_prefix: str | None
     user: str = "root"