🎨 style(md): lint and format all Markdown files

- Update .markdownlint.json: disable MD024 (duplicate headings) and MD025 (multiple h1)
  - MD024: test cases intentionally use duplicate headings for test IDs
  - MD025: function catalog files use multiple h1 for different function groups
- Fix MD040: add language identifiers to fenced code blocks in test/agent/README.md
- Fix MD031: add blank lines around fenced code blocks
- Run prettier to format all Markdown files consistently
- Fix table alignment and spacing issues

All markdownlint errors are now resolved.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docs/tsl/reference/catalog/resource/02_file_access.md

@@ -386,6 +386,7 @@
 | 3        | `arg3`     | 是   | 字符串   | 按源文档示例顺序传入 |
 | 4        | `lj1`      | 是   | 任意值   | 按源文档示例顺序传入 |
 | 5        | `arg5`     | 否   | 整数     | 按源文档示例顺序传入 |
+
 # 资源访问函数 - 宽字节处理函数
 
 文档类型：函数事实页