fix(docs): keep unreleased report credit out of shipped notes

Address Devin's review of PR #6081 by removing the branch's changelog entry
and generated website mirror. CONTRIBUTING.md reserves those updates for
the merge session on main; all changelog surfaces now match upstream.

Keep the issue #6048 report credit under Unreleased in CONTRIBUTORS.md so
the published v0.9.13 contributor list stays in exact website parity.
This also corrects the version-drift and public-copy CI failures.

Verified the 12 changelog/public-copy tests, release version and changelog
sync checks, formatting, and whitespace checks. The implementation and its
409 passing targeted Rust tests are unchanged.

Signed-off-by: Nightt <87569709+nightt5879@users.noreply.github.com>

Author: nightt5879

CHANGELOG.md

@@ -7,14 +7,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-### Fixed
-
-- Gemini tool-call replays rejected by compatible gateways for a missing
-  `thought_signature` now explain how to recover: use the built-in `google`
-  provider or a gateway that preserves signatures, then start a new session.
-  Gateways that manage signatures themselves continue to work. Reported by
-  @Hmbown (#6048).
-
 ## [0.9.13] - 2026-09-10
 
 Codewhale v0.9.13 source candidate addresses integrity issues in 0.9.12:

docs/CONTRIBUTORS.md

@@ -27,6 +27,15 @@ notes, and relevant issue/PR comments.
 
 ## Contributors by time
 
+<details open>
+<summary><strong>Unreleased</strong></summary>
+
+**Reports and reproductions**
+
+- **[Hmbown](https://github.com/Hmbown)** — identified missing recovery guidance when a compatible gateway rejects Gemini tool-call replay without thought signatures ([#6048](https://github.com/Hmbown/Codewhale/issues/6048)).
+
+</details>
+
 <details open>
 <summary><strong>v0.9.13 — paste integrity, dispatch safety, and the Computer Use bundle</strong></summary>
 
@@ -43,7 +52,6 @@ notes, and relevant issue/PR comments.
 
 **Reports and reproductions**
 
-- **[Hmbown](https://github.com/Hmbown)** — identified missing recovery guidance when a compatible gateway rejects Gemini tool-call replay without thought signatures ([#6048](https://github.com/Hmbown/Codewhale/issues/6048)).
 - **[7jrxt42BxFZo4iAnN4CX](https://github.com/7jrxt42BxFZo4iAnN4CX)** — proposed global usage and tool diagnostics and independent goal verification ([#6011](https://github.com/Hmbown/Codewhale/issues/6011), [#6013](https://github.com/Hmbown/Codewhale/issues/6013)); these broader requests remain open.
 - **[nsfoxer](https://github.com/nsfoxer)** — reported the multiline-paste regression and incomplete provider model lists ([#5981](https://github.com/Hmbown/Codewhale/issues/5981), [#6009](https://github.com/Hmbown/Codewhale/issues/6009)).
 - **[Nefelibata1024](https://github.com/Nefelibata1024)** — confirmed the multiline-paste regression's impact ([#5981](https://github.com/Hmbown/Codewhale/issues/5981)).

web/lib/changelog.generated.ts

@@ -26,15 +26,7 @@ export const CHANGELOG: ChangelogRelease[] = [
     "date": null,
     "unreleased": true,
     "compareUrl": "https://github.com/Hmbown/CodeWhale/compare/v0.9.12...HEAD",
-    "sections": [
-      {
-        "heading": "Fixed",
-        "items": [
-          "Gemini tool-call replays rejected by compatible gateways for a missing thought_signature now explain how to recover: use the built-in google provider or a gateway that preserves signatures, then start a new session. Gateways that manage signatures themselves continue to work. Reported by @Hmbown (#6048)."
-        ],
-        "itemCount": 1
-      }
-    ]
+    "sections": []
   },
   {
     "version": "0.9.13",