chore: 优化技能创建流程并完善文档与脚本

- 删除空的技能目录占位文件
- 添加Apache许可证文件以明确项目使用和分发的条款与条件。
- 添加输出模式参考文档，包含模板模式和示例模式，以确保技能生成一致且高质量的输出。
- 添加工作流模式文档，包含顺序执行和条件分支的流程指导。
- 创建新技能时自动生成包含模板文件和示例资源的完整目录结构
- 添加技能打包脚本以将技能文件夹打包为可分发的 .skill 文件，包含验证、输出路径配置和压缩功能。
- 添加快速验证技能文件的脚本，检查SKILL.md是否存在、frontmatter格式正确性、必需字段完整性及命名和描述的规范性。
- 创建技能的完整指南，涵盖技能设计原则、文件结构、内容组织、创建流程及最佳实践。

skills/skill-creator/references/output-patterns.md

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+# Output Patterns
+
+Use these patterns when skills need to produce consistent, high-quality output.
+
+## Template Pattern
+
+Provide templates for output format. Match the level of strictness to your needs.
+
+**For strict requirements (like API responses or data formats):**
+
+```markdown
+## Report structure
+
+ALWAYS use this exact template structure:
+
+# [Analysis Title]
+
+## Executive summary
+[One-paragraph overview of key findings]
+
+## Key findings
+- Finding 1 with supporting data
+- Finding 2 with supporting data
+- Finding 3 with supporting data
+
+## Recommendations
+1. Specific actionable recommendation
+2. Specific actionable recommendation
+```
+
+**For flexible guidance (when adaptation is useful):**
+
+```markdown
+## Report structure
+
+Here is a sensible default format, but use your best judgment:
+
+# [Analysis Title]
+
+## Executive summary
+[Overview]
+
+## Key findings
+[Adapt sections based on what you discover]
+
+## Recommendations
+[Tailor to the specific context]
+
+Adjust sections as needed for the specific analysis type.
+```
+
+## Examples Pattern
+
+For skills where output quality depends on seeing examples, provide input/output pairs:
+
+```markdown
+## Commit message format
+
+Generate commit messages following these examples:
+
+**Example 1:**
+Input: Added user authentication with JWT tokens
+Output:
+```
+feat(auth): implement JWT-based authentication
+
+Add login endpoint and token validation middleware
+```
+
+**Example 2:**
+Input: Fixed bug where dates displayed incorrectly in reports
+Output:
+```
+fix(reports): correct date formatting in timezone conversion
+
+Use UTC timestamps consistently across report generation
+```
+
+Follow this style: type(scope): brief description, then detailed explanation.
+```
+
+Examples help Claude understand the desired style and level of detail more clearly than descriptions alone.