docs: reconcile CHANGELOG — 2026-W17

[the-care-taker]

Documentation reconciliation

This PR updates CHANGELOG.md to capture the following merged pull requests:

• chore(caretaker): enable fleet-registry heartbeat with OAuth2 #46: chore(caretaker): enable fleet-registry heartbeat with OAuth2
• fix(maintainer): rename dispatch mode upgrade-only → upgrade #37: fix(maintainer): rename dispatch mode upgrade-only → upgrade
• chore: upgrade caretaker to v0.10.0 #34: chore: upgrade caretaker to v0.10.0

Proposed changelog entry

## [2026-W17] — 2026-04-25

- upgrade caretaker to v0.10.0 (#34)
- rename dispatch mode upgrade-only → upgrade (#37)
- enable fleet-registry heartbeat with OAuth2 (#46)

---

[github-actions]

@claude caretaker is requesting a full code review for this PR.

Repo: ianlintner/python_dsa · PR: #56
Routing reason: score=0 [low-complexity] → inline

Please review this pull request for:

• Correctness and logic errors
• Security vulnerabilities or unsafe patterns
• API contract and backward-compatibility concerns
• Test coverage gaps
• Any blocking issues before merge

Post a review comment summary and inline comments where applicable.

Delegated by caretaker's PRReviewerAgent via ClaudeCodeExecutor hand-off.

[the-care-taker]

⚠️ Caretaker Escalation

This PR requires human attention.

Reason: Open >24h with no human approval — needs review

The automated system has exhausted its ability to resolve this. Please review and take appropriate action.

Escalation debug dump

Generated at: 2026-04-26T08:24:19.836205+00:00

{
  "debug": {
    "copilot_attempts": 0,
    "fix_cycles": 0,
    "pr_age_hours": 24.12972388972222,
    "recommended_action": "escalate",
    "stuck_age_hours": 24,
    "stuck_confidence": 0.5,
    "stuck_reason": "abandoned"
  },
  "owner": "ianlintner",
  "pull_request": {
    "base_ref": "main",
    "draft": false,
    "head_ref": "docs/changelog-2026-W17",
    "html_url": "https://github.com/ianlintner/python_dsa/pull/56",
    "is_copilot_pr": false,
    "is_maintainer_pr": false,
    "mergeable": null,
    "number": 56,
    "state": "open",
    "title": "docs: reconcile CHANGELOG \u2014 2026-W17"
  },
  "reason": "Open >24h with no human approval \u2014 needs review",
  "repo": "python_dsa",
  "type": "pr_escalation"
}

[the-care-taker]

⚠️ Caretaker Escalation

This PR requires human attention.

Reason: Open >24h with no human approval — needs review

The automated system has exhausted its ability to resolve this. Please review and take appropriate action.

Escalation debug dump

Generated at: 2026-04-26T08:24:19.852890+00:00

{
  "debug": {
    "copilot_attempts": 0,
    "fix_cycles": 0,
    "pr_age_hours": 24.129707335277775,
    "recommended_action": "escalate",
    "stuck_age_hours": 24,
    "stuck_confidence": 0.5,
    "stuck_reason": "abandoned"
  },
  "owner": "ianlintner",
  "pull_request": {
    "base_ref": "main",
    "draft": false,
    "head_ref": "docs/changelog-2026-W17",
    "html_url": "https://github.com/ianlintner/python_dsa/pull/56",
    "is_copilot_pr": false,
    "is_maintainer_pr": false,
    "mergeable": null,
    "number": 56,
    "state": "open",
    "title": "docs: reconcile CHANGELOG \u2014 2026-W17"
  },
  "reason": "Open >24h with no human approval \u2014 needs review",
  "repo": "python_dsa",
  "type": "pr_escalation"
}