ci: workflow 加 --append-system-prompt 要求繁體中文回覆

以 claude_args 附加 system prompt，讓 issue/PR 留言、commit message
說明與 todo 項目一律用繁體中文；程式碼註解與命名維持英文慣例。

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

.gitea/workflows/claude.yml

@@ -0,0 +1,29 @@
+name: Claude Assistant
+on:
+  issue_comment:
+    types: [created]
+  pull_request_review_comment:
+    types: [created]
+  issues:
+    types: [opened, assigned, labeled]
+  pull_request_review:
+    types: [submitted]
+
+jobs:
+  claude-response:
+    runs-on: yellow-zeabur-runner
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: markwylde/claude-code-gitea-action@v1.0.20
+        with:
+          anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
+          gitea_token: ${{ secrets.USER_TOKEN }}
+          claude_git_name: Claude
+          claude_git_email: claude@anthropic.com
+          path_to_claude_code_executable: /usr/local/bin/claude
+          claude_args: |
+            --append-system-prompt "請一律使用繁體中文回覆，包含 issue/PR 留言、commit message 說明文字、todo list 項目。程式碼註解與變數命名維持英文慣例即可。"
+        env:
+          GITEA_SERVER_URL: https://yellow-git.zeabur.app