docs(matrix): cachekit-ts passes reject_envelope_slots_overclaim in both lanes (LAB-8577)

[27Bslash6]

The TypeScript Wire format cell in sdk-feature-matrix.md no longer lists reject_envelope_slots_overclaim as an expected failure. Since cachekit-io/cachekit-ts#232 (merged, unreleased), the SDK refuses it with the envelope pre-scan's own error in both lanes.

• TypeScript Wire format cell: the ⚠️ clause describing the vector as a type error at element 1, held as an expected failure naming WIRE-9, is replaced. It now says the vector passes in both lanes: the SDK's header walk keeps a running total of declared slots and refuses the vector before element 1's type check and before core sees the bytes. The cell's "flips when" condition no longer names that expected failure, and names only the core release that carries the envelope pre-scan. The leading "Compliant except the envelope pre-scan" clause is unchanged.
• Note ¹⁶: cachekit-ts now holds one gap as an expected failure, the temporal sentinels, where it held two.
• changelog.d/20261010_lab-8577.md records the change. conformance/sdks.json does not change, because no fixture copy moved, and conformance/coverage.md is still current.

Checked locally: tools/conformance.py check --base origin/main, tools/check-version-floors.py and tools/test_changelog_collect.py all pass.

Closes LAB-8577

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ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between f8c8382 and 9a2b85a.

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📒 Files selected for processing (2)

• changelog.d/20261010_lab-8577.md
• sdk-feature-matrix.md

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Summary by CodeRabbit

• Documentation
  • Updated the TypeScript wire-format compliance notes to show that envelopes declaring more slots than allowed are rejected in both Node and Workers.
  • Updated the expected-failure count from two to one; the remaining failure relates to temporal sentinels.

Walkthrough

The feature matrix and changelog record that TypeScript passes the reject_envelope_slots_overclaim vector in both test lanes. They describe rejection during the envelope pre-scan and update the expected-failure count.

Changes

TypeScript wire-format status

Layer / File(s)	Summary
Record wire-format compliance sdk-feature-matrix.md, changelog.d/20261010_lab-8577.md	The feature matrix records the vector as passing in both lanes. The changelog updates the release condition and expected-failure count. Both describe rejection before element type checking or core decoding.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to 9a2b8

The updated conformance status is supported by tests in both lanes, with no identified PR-introduced issue remaining.

Pre-merge checks | 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check		The title clearly identifies the documentation change: cachekit-ts now passes reject_envelope_slots_overclaim in both lanes. It is specific and aligned with the main change.
Description check		The description directly explains the matrix update, the cachekit-ts#232 behaviour, the expected-failure count, and the validation checks. It is related to the changeset.
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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