refactor: align cd and worker defaults

codex_telegram_bridge/readme.md

@@ -23,7 +23,7 @@ chat_id = 123456789
 
 Optional keys:
 
-- exec/resume: `codex_workspace`, `codex_exec_args`, `max_workers`
+- exec/resume: `cd`, `codex_exec_args`
 
 ## Option 1: exec/resume
 
@@ -39,7 +39,7 @@ Optional flags:
 - `--progress-silent/--no-progress-silent` (default silent)
 - `--final-notify/--no-final-notify` (default notify via new message)
 - `--ignore-backlog/--process-backlog` (default ignore pending updates)
-- `--workdir PATH` (override `codex_workspace`)
+- `--cd PATH` (pass through to `codex --cd`)
 - `--model NAME` (pass through to `codex exec`)
 
 To resume an existing thread without a database, reply with (or include) the session id shown at the end of the bot response: