moq-lite-05: remove Publisher Cache hint

[kixelated]

What

Removes the Publisher Cache hint from moq-lite-05.

• Drops the Publisher Cache (i) field and its definition block from TRACK_INFO.
• Trims the Track delivery-preference bullet to just Max Latency (subscriber).
• Reworks the Expiration and SUBSCRIBE cross-references so retention for FETCH / future subscriptions is described as best-effort, left to the publisher.
• Reverts the brief Subscriber Stale rename back to Subscriber Max Latency (its v04 name), and fixes a historical moq-lite-03 changelog entry that had been incorrectly updated to the new name.
• Cleans up a stale max_latency reference and drops the now-incorrect "set by either peer" (only the subscriber sets it).
• Updates the moq-lite-05 changelog: the rename entry becomes a removal entry, and Publisher Cache is dropped from the new TRACK_INFO field list.

Why

The Publisher Cache retention guarantee felt out of place in the wire format. Retention is now an implementation concern rather than a negotiated property.

Notes for reviewers

Subscriber Max Latency is retained — it's the subscriber-side delivery/expiration preference, a distinct concept that remains well integrated into the Expiration section. Draft builds clean via make draft-lcurley-moq-lite.txt.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 877817be-5bec-484a-b0bc-7516183173e9

📥 Commits

Reviewing files that changed from the base of the PR and between 1a4e123 and fd76791.

📒 Files selected for processing (1)

• draft-lcurley-moq-lite.md

Walkthrough

The spec renames the per-subscription latency field from Subscriber Stale to Subscriber Max Latency in the Track preference list, the SUBSCRIBE wire format, the SUBSCRIBE_UPDATE wire format, and their field descriptions. The Expiration section is rewritten to frame this field as a delivery-time preference only: the publisher resets Group Streams whose age exceeds the value and may retain groups on a best-effort basis for FETCH or future subscriptions. The Publisher Cache field is removed from the TRACK_INFO wire format and its descriptive text is deleted. Changelog entries are updated to reflect all renames and removals.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically identifies the main change: removing the Publisher Cache hint from moq-lite-05, which aligns with the primary focus of the changeset.
Description check	✅ Passed	The description comprehensively explains what is being removed, what is being updated, the rationale, and includes notes for reviewers, all directly related to the changeset.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch claude/amazing-pasteur-5a7ae3

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@draft-lcurley-moq-lite.md`:
- Line 1070: The changelog entry in the moq-lite-05 section incorrectly
identifies the removed field name as "Publisher Max Latency" when it should be
"Publisher Cache (i)". Correct the field name in the changelog bullet point at
line 1070 from "Publisher Max Latency" to "Publisher Cache" to match the actual
field that was removed from the TRACK_INFO message structure and align with the
descriptive text that follows about the publisher's retention guarantee.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: b218164b-1600-44de-9045-1e0a06deae53

📥 Commits

Reviewing files that changed from the base of the PR and between 0a66e5c and 1a4e123.

📒 Files selected for processing (1)

• draft-lcurley-moq-lite.md