From 853e7ca1361284547600a04f0859b18e511b41ea Mon Sep 17 00:00:00 2001
From: walker1211 <13750528578@163.com>
Date: Sun, 21 Jun 2026 14:20:41 +0800
Subject: [PATCH] =?UTF-8?q?docs(release):=20=E6=B7=BB=E5=8A=A0=20v0.1.13?=
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+## Highlights
+
+- Hardened Codex/imagegen timeout handling so timed-out process groups are killed before stdout/stderr readers are awaited.
+- Added regression coverage for already-canceled contexts and child processes that keep output pipes open.
+- Changed the default backend timeout to 300s.
+- Clarified `max_attempts` as total attempts; `3` means the initial attempt plus at most two retries.
+
+## Notes
+
+This release supersedes the unpublished `v0.1.11` and `v0.1.12` tags. It includes the timeout cleanup fix and the matching release notes required by the GitHub Release workflow.
+
+## Validation
+
+- `go test ./...`
+- `go build -o ./imgen ./cmd/imgen`
+- GitHub PR checks: `test`, `Analyze Go`, and `CodeQL`