fix: repair broken imports and test failures after codex_auth move

- codex_auth.py: fix relative imports (.log, .util) to absolute paths
  (bot_bottle.log, bot_bottle.util) — the file moved to contrib/codex
  but the imports weren't updated
- codex_auth.py: wrap long line at 107 chars (pre-existing C0301)
- pty_resize.py: catch io.UnsupportedOperation from stream.fileno()
  and fall back to the numeric fd — pytest redirects stdin/stdout/stderr
  to pseudofiles, causing fileno() to raise before ioctl is even called

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

bot_bottle/contrib/codex/codex_auth.py

@@ -15,8 +15,8 @@ from datetime import datetime, timezone
 from pathlib import Path
 from typing import cast
 
-from .log import die
-from .util import expand_tilde
+from bot_bottle.log import die
+from bot_bottle.util import expand_tilde
 
 
 def codex_auth_path(host_env: dict[str, str] | None = None) -> Path:
@@ -153,7 +153,9 @@ def _dummy_jwt_from_host(
         return _dummy_jwt(now, exp_ts=exp_ts)
     if not isinstance(payload, dict):
         return _dummy_jwt(now, exp_ts=exp_ts)
-    return _encode_dummy_jwt(_redact_jwt_payload(cast(dict[str, object], payload), now=now, exp_ts=exp_ts))
+    return _encode_dummy_jwt(
+        _redact_jwt_payload(cast(dict[str, object], payload), now=now, exp_ts=exp_ts)
+    )
 
 
 def _encode_dummy_jwt(payload: dict[str, object]) -> str: