docs(release): prepare Artur 2026.08.5 (#308)

Co-authored-by: outof-place <69466055+outof-place@users.noreply.github.com>

Author: blazity-ai-workflow[bot]

docs/releases/artur/2026.08.5.md

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+---
+version: 2026.08.5
+previousSourceCommit: 99dbfec37b6fd8b0761b46d3e28a607632cd2cc2
+targetSourceCommit: b9334a621ac251e568d55e5c0e446a6500b546e6
+repository: Blazity/ai-workflow
+---
+
+<!-- shareable:start -->
+# AI Workflow — 2026.08.5
+
+## Highlights
+
+This release includes improvements and fixes for AI Workflow.
+
+## What's new
+
+No new user-facing capabilities in this release.
+
+## Improvements and fixes
+
+- fix(worker): recover pre-PR workspace gate from durable checks output
+  <!-- sources: 307 -->
+
+## Do you need to do anything?
+
+No action is required.
+
+## Known limitations
+
+No known user-facing limitations.
+<!-- shareable:end -->
+
+## Exact release scope
+
+- [#306](https://github.com/Blazity/ai-workflow/pull/306) — internal: docs(release): Artur 2026.08.4
+- [#307](https://github.com/Blazity/ai-workflow/pull/307) — fix: fix(worker): recover pre-PR workspace gate from durable checks output