fix(ci): release-deploy 合并为单次 download-artifact + flatten

首次 windows release-deploy 失败:两次 download-artifact 复用致 act 对只读缓存
action(pack idx 444)EACCES。改一次性下全部 artifact(dist-raw/)再 flatten 到 dist/。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013nMthbVEmQquxBRKb9Fj8u

.gitea/workflows/deploy-client.yml

@@ -83,17 +83,19 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Download android artifact
+      # 一次性下所有 artifact(不带 name),避免同 job 内两次复用 download-artifact
+      # action → act 对其只读缓存 git 仓库做二次操作时 EACCES(pack idx 444)。
+      - name: Download all artifacts
         uses: actions/download-artifact@v3
         with:
-          name: android
-          path: dist/
+          path: dist-raw/
 
-      - name: Download windows artifact
-        uses: actions/download-artifact@v3
-        with:
-          name: windows
-          path: dist/
+      - name: Flatten artifacts into dist/
+        shell: bash
+        run: |
+          mkdir -p dist
+          find dist-raw -type f -exec cp {} dist/ \;
+          echo "dist/ 内容:"; ls -la dist/
 
       - name: Release → Forgejo
         env: