feat(docs): add qwen-code skills, agents, and updated AGENTS.md (#3575)

- Add new skills: bugfix, feat-dev with structured workflows
- Update existing skills: docs-audit-and-refresh, docs-update-from-diff,
  e2e-testing, qwen-code-claw, structured-debugging, terminal-capture
- Update test-engineer agent with clearer constraints and formatting
- Update qc commands: bugfix, code-review, commit, create-issue, create-pr
- Reorganize .gitignore to keep qwen configs near top
- Expand AGENTS.md with development commands, feature/bugfix workflows,
  project directories table, and code review guidelines

Co-authored-by: 愚远 <zhenxing.tzx@alibaba-inc.com>
Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

.qwen/commands/qc/create-pr.md

@@ -10,32 +10,35 @@ Create a well-structured pull request with proper description and title.
 
 ## Steps
 
-1. **Review staged changes**
-   - Review all staged changes to understand what has been done
-   - Do not touch unstaged changes
+1.  **Review staged changes**
+- Review all staged changes to understand what has been done
+- Do not touch unstaged changes
 
-2. **Prepare branch**
-   - Create a new branch with proper name if current branch is main
-   - Ensure all changes are committed
-   - Push branch to remote
+2.  **Prepare branch**
+- Create a new branch with proper name if current branch is main
+- Ensure all changes are committed
+- Push branch to remote
 
-3. **Write PR description**
-   - Use PR Template below
-   - Summarize changes clearly
-   - Include context and motivation
-   - List any breaking changes
-   - Link related issues if provided, or use "No linked issues"
-   - Leave the "Screenshots / Video Demo" section empty for the author to fill in manually
-   - Add this line at the end of PR body: "🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)", with a line separator
+3.  **Write PR description**
+- Use PR Template below
+- Summarize changes clearly
+- Include context and motivation
+- List any breaking changes
+- Link related issues if provided, or use "No linked issues"
+- Leave the "Screenshots / Video Demo" section empty for the author to fill in
+  manually
+- Add this line at the end of PR body: "🤖 Generated with [Qwen
+  Code](https://github.com/QwenLM/qwen-code)", with a line separator
 
-4. **Set up PR**
-   - Create PR title and body
-   - Submit PR with gh command
-   - **If a GitHub token is provided in the user's message**, use it by setting the `GH_TOKEN` environment variable:
+4.  **Set up PR**
+- Create PR title and body
+- Submit PR with gh command
+- **If a GitHub token is provided in the user's message**, use it by setting
+  the `GH_TOKEN` environment variable:
      ```bash
      GH_TOKEN=<provided_token> gh pr create --title "..." --body "..."
      ```
-   - If no token is provided, use the default `gh` authentication
+- If no token is provided, use the default `gh` authentication
 
 ## PR Template