chore(daemon): record D3 socket-API deferral with a ponytail marker (#21)

[JosephOIbrahim]

Closes out Tier 5 / D3 from the ponytail review the best-practice way — track the decision, don't delete documented public API on speculation.

• Files an explicit deferral in code: a ponytail: marker on the source-label socket API (acquire_listen_socket + helpers) naming the adopt-or-delete upgrade path.
• Links Decide fate of socket_activation source-label API (acquire_listen_socket): adopt in agents/harness.py or remove #21, which holds the actual roadmap decision (adopt in agents/harness.py vs remove ~85 lines).

Comment-only; no behavior change. py_compile + import verified.

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation
  • Added clarification comments regarding internal API status and future plans.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 05d49443-2944-4a0c-bd18-338a7ae0430a

📥 Commits

Reviewing files that changed from the base of the PR and between 01312e2 and 54bb1d6.

📒 Files selected for processing (1)

• python/harlo/daemon/socket_activation.py

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📝 Walkthrough

Walkthrough

A four-line comment block is inserted into python/harlo/daemon/socket_activation.py at lines 164–167, noting that the acquire_listen_socket source-label API and related helpers are currently deferred and test-only, with a follow-up decision (adopt in agents/harness.py or delete) tracked in issue #21. No functional code was changed.

Changes

Comment clarifying deferred API status

Layer / File(s)	Summary
Test-only API status comment python/harlo/daemon/socket_activation.py	Inserts a comment block documenting that acquire_listen_socket and related helpers are test-only and deferred, with intended reuse in agents/harness.py and decision tracked in issue #21.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related issues

• Harlo#21: The inserted comment explicitly references issue #21 as the tracking issue for deciding whether to adopt the acquire_listen_socket API in agents/harness.py or remove it, directly documenting the decision point described in that issue.

Poem

A rabbit scribbled in the code one day,
"This socket helper's resting, put away—
Issue twenty-one shall track the plan,
To keep or trim it, if we can."
🐇✏️ For now, a comment marks the way!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding a deferral marker comment for the socket API with a reference to issue #21, matching the core objective of recording a design decision.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/ponytail-d3-defer-marker

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