chore: 添加文档、资源与测试输出

- assets/ 静态资源
- docs/superpowers/ 技能文档
- dogfood-output/ 测试验证输出

dogfood-output/report.md

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+# Dogfood Report: 万事皆宜 (Everything Is Suitable)
+
+| Field | Value |
+|-------|-------|
+| **Date** | 2026-04-28 |
+| **App URL** | http://localhost:5174/ |
+| **Session** | everything-is-suitable-dogfood |
+| **Scope** | 全应用 - 纯客户端转型后全面质量验证 |
+
+## Summary
+
+| Severity | Count |
+|----------|-------|
+| Critical | 0 |
+| High | 0 |
+| Medium | 0 |
+| Low | 0 |
+| **Total** | **0** |
+
+## Issues
+