chore(deps): bump actions/checkout from 4 to 7

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/deploy-server.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       # 部署前门禁（2026-08 审计 #11）：server 变更直接部署前先跑完整测试，
       # 防止未验证代码上线（pr-check 只在 PR 流程生效，main 直推会绕过）

.github/workflows/deploy-website.yml

@@ -14,7 +14,7 @@ jobs:
     steps:
       # lfs: true 必需：beian.png / sponsor-qr.png 等由 Git LFS 托管（.gitattributes:
       # *.png filter=lfs），不拉取则为 131 字节指针文件，线上为坏图
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
         with:
           lfs: true
 

.github/workflows/pr-check.yml

@@ -23,7 +23,7 @@ jobs:
       website: ${{ steps.filter.outputs.website }}
       docs: ${{ steps.filter.outputs.docs }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: dorny/paths-filter@v3
         id: filter
         with:
@@ -52,7 +52,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: actions/setup-node@v4
         with:
           node-version: 20
@@ -93,7 +93,7 @@ jobs:
       run:
         working-directory: server/sync-service
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: actions/setup-go@v5
         with:
           # 与 go.mod 的 go 1.25 指令一致（此前注释"1.25 尚未发布"已过时）
@@ -118,7 +118,7 @@ jobs:
       run:
         working-directory: server/ai-gateway
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: actions/setup-python@v5
         with:
           python-version: '3.12'
@@ -145,7 +145,7 @@ jobs:
       run:
         working-directory: website
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: actions/setup-node@v4
         with:
           node-version: 20
@@ -168,7 +168,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: actions/setup-node@v4
         with:
           node-version: 20

.github/workflows/release.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: actions/setup-node@v4
         with:
           node-version: 20
@@ -53,7 +53,7 @@ jobs:
       # *.png filter=lfs），不拉取则仅为 131 字节指针文件，
       # electron-builder 图标转换（PNG→ICO）解码失败，
       # 报 ERR_ELECTRON_BUILDER_CANNOT_EXECUTE。
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
         with:
           lfs: true
       - uses: actions/setup-node@v4

.github/workflows/version-release.yml

@@ -28,7 +28,7 @@ jobs:
     if: ${{ !contains(github.event.head_commit.message, '[skip ci]') }}
     steps:
       - name: Checkout（拉取完整历史用于提交分析）
-        uses: actions/checkout@v4
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
           persist-credentials: true