Improve error reporting in clear packets

[romac]

Closes: #XXX

Description

Main thing that remains is to have the packet clearing tasks return the result of the operation, but that requires larger changes. Will do so in another PR targeting this one.

---

PR author checklist:

• Added changelog entry, using unclog.
• Added tests: integration (for Hermes) or unit/mock tests (for modules).
• Linked to GitHub issue.
• Updated code comments and documentation (e.g., docs/).
• Tagged one reviewer who will be the one responsible for shepherding this PR.

Reviewer checklist:

• Reviewed Files changed in the GitHub PR explorer.
• Manually tested (in case integration/unit/mock tests are absent).