fix(debug): improve autonomous CLI discovery

[Hynek Kydlíček (hynky1999)]

Summary

• flush retained-session creation progress for non-interactive callers
• document exec commands and pipeline argument passthrough directly in CLI help
• clarify customer workflow docs and remove internal implementation notes

Verification

• .venv/bin/python -m pytest -q tests/cli/test_debug_commands.py (17 passed)
• .venv/bin/python -m pytest -q (1181 passed, 21 skipped)
• Ruff check and format verification passed

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 8a5c541c8e

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "Codex (@codex) review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "Codex (@codex) address that feedback".

[chatgpt-codex-connector]

Say that bare sync restores the creation arguments

When a session is created with one argument set and a sync temporarily overrides it, _cmd_sync applies that override only to the current invocation and never updates the stored DebugSessionRecord; therefore, the next bare sync reuses the original creation arguments, not the most recent override. The statement here contradicts lines 67–71 and can cause users to synchronize an unintended pipeline configuration.

AGENTS.md reference: AGENTS.md:L49-L52

Useful? React with 👍 / 👎.