feat: add bugfix workflow, test-engineer agent, and debugging skills

- Add test-engineer agent for bug reproduction and verification
- Add /qc:bugfix command for structured bugfix workflow
- Add e2e-testing skill covering headless/interactive modes, MCP testing
- Add structured-debugging skill for hypothesis-driven debugging
- Simplify AGENTS.md to focus on essential commands and conventions
- Add terminal-capture scenario for bugfix workflow testing
- Add .qwen folder to ESLint ignore list

Known limitations: The /qc:bugfix workflow and e2e-testing skill
are experimental and may be unstable or consume significant tokens.

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

package.json

@@ -135,7 +135,7 @@
   "lint-staged": {
     "*.{js,jsx,ts,tsx}": [
       "prettier --write",
-      "eslint --fix --max-warnings 0"
+      "eslint --fix --max-warnings 0 --no-warn-ignored"
     ],
     "*.{json,md}": [
       "prettier --write"