fix: GHCR 镜像名必须小写（owner C3H3-AI 含大写导致 buildx 失败） - #4
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September 15, 2026 13:42
Build Add-on Image 在合并后首次运行即失败：
##[error]Can't find 'action.yml', 'action.yaml' or 'Dockerfile'
for action 'home-assistant/builder/actions/prepare-multi-arch-matrix@7.2.0'.
根因：home-assistant/builder 存在两条版本线。
- 7.x（7.0 / 7.1 / 7.2.0）：旧版 builder，**仓库内没有 actions/ 目录**
- 2026.x（2026.09.0 等）：新版，含 actions/{build-image,
prepare-multi-arch-matrix,publish-multi-arch-manifest,cosign-verify}
实测对比（两个 tag 各自的 clone）：
tag 7.2.0 → azure-pipelines.yml builder.sh build.json Dockerfile ...
actions/ 不存在
tag 2026.09.0 → actions/ action.yml ...（4 个子 action 齐全）
官方 README 示例中的 @[version] 指的是 releases 页面上的 tag，
即日历版本（2026.09.0），而非 7.x 那条线。此前取了 7.2.0 属实误判。
Build Add-on Image 第二次运行实际进入构建阶段，buildx 报错：
##[error]buildx failed with: ERROR: failed to build:
invalid tag "ghcr.io/C3H3-AI/amd64-ai-proxy:1.1.0b13":
repository name must be lowercase
根因：HA 官方 builder 的 prepare-multi-arch-matrix 与
publish-multi-arch-manifest 两个 action，其 registry-prefix 默认值均为
ghcr.io/${{ github.repository_owner }}，而本仓库 owner 是 "C3H3-AI"（含大写）。
Docker/OCI 规范要求 repository name 必须全小写。
改动（3 处，统一为 ghcr.io/c3h3-ai）：
- prepare-multi-arch-matrix: 显式传 registry-prefix
- publish-multi-arch-manifest: 显式传 registry-prefix
- verify job: 手写的 IMAGE 变量由 github.repository_owner 改为字面量
与 config.yaml 的 image: "ghcr.io/c3h3-ai/ai-proxy" 保持一致。
注：上一轮的 tag 引用修复（7.2.0 -> 2026.09.0）已生效——
本次 init job（Resolve version & matrix）全部步骤通过，
build job 也真正进入了 buildx 构建阶段，不再是 Set up job 失败。
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Description / 变更描述
修复
Build Add-on Image的第二次失败。上一轮 tag 引用修复已生效（init job 全部通过、build job 真正进入 buildx 阶段），本次是随之暴露的下一层问题。
失败现象
根因
HA 官方 builder 的两个 action，
registry-prefix默认值都是ghcr.io/${{ github.repository_owner }}：prepare-multi-arch-matrix（action.yml:14）publish-multi-arch-manifest（action.yml:32）而本仓库 owner 是
C3H3-AI（含大写）。Docker/OCI 规范要求repository name 必须全小写，故被 buildx 拒绝。
改动（3 处，统一为
ghcr.io/c3h3-ai）prepare-multi-arch-matrixregistry-prefixpublish-multi-arch-manifestregistry-prefixverifyjobIMAGE由github.repository_owner改为字面量与
config.yaml的image: "ghcr.io/c3h3-ai/ai-proxy"保持一致。验证进展
Set up job即失败（tag7.2.0无actions/目录）Type of change / 变更类型
Testing / 测试
三处 ghcr 前缀已本地核对一致，待合并后真机验证
Checklist / 自检清单