Release exp-v0.52.186: stop full-message fade replay on tool-call rewind (#6783)

[nesquena-hermes]

Release exp-v0.52.186 (experimental channel).

CHANGELOG stamp for #6783 (@silent-reader-cn) — stop full-message fade replay on tool-call rewind, already merged to master as cabb467b3.

Gate (fresh, rebased head): Codex SAFE TO SHIP (both rebuild paths use node-scoped rendered textContent prefix, no parser-state change, normal append + reduce-motion + URL-safety intact, O(prefix) work) · full 5-shard suite green (bar the 2 known box-baseline flakes) · focused 52/52 · static clean. Motion-correctness fix; visible behavior directly DOM-asserted in tests (rewind-remount mutes common prefix) + Nathan approved shipping without a still (a screenshot can't capture absence-of-blink).

CHANGELOG-only release PR from fresh master.

[greptile-apps]

Greptile Summary

This release-only PR adds the experimental v0.52.186 changelog entry for the previously merged tool-call rewind animation fix.

• Documents that previously rendered message text remains stable when live tool-call XML removal rewinds displayed content.
• Clarifies that only genuinely new text after the rewind point receives the fade-in effect.

Confidence Score: 5/5

This changelog-only release PR appears safe to merge.

The sole change is release-note documentation, and no concrete correctness, security, or maintainability issue remains.

Important Files Changed

Filename	Overview
CHANGELOG.md	Adds one release-note entry accurately describing the already-merged fix, with no runtime or build changes.

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