feat: 从 FastAPI 导出 openapi.json 并渲染为 API 文档

通过 vitepress-openapi 插件，在 VitePress 文档中实现基于 openapi.json 的 API 文档。
这样实现的 API 文档可以从最新版本的代码库中提取路由信息，继而实现自动集成。
---
同时，通过 Kimi 和 Deepseek 实现并审查了一个对 Google 风格 docstring 的解析函数。
该函数可以从 Google 风格的 docstring 中提取参数文档并按 openapi 规范重新整理它们。
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增加了 nyahome openapi 命令用来导出 openapi.json。
增加了 task openapi-docs 命令用来准备未来的持续集成。

uv.lock

@@ -355,6 +355,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/12/b3/231ffd4ab1fc9d679809f356cebee130ac7daa00d6d6f3206dd4fd137e9e/distro-1.9.0-py3-none-any.whl", hash = "sha256:7bffd925d65168f85027d8da9af6bddab658135b840670a223589bc0c8ef02b2", size = 20277, upload-time = "2023-12-24T09:54:30.421Z" },
 ]
 
+[[package]]
+name = "docstring-parser"
+version = "0.18.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/e0/4d/f332313098c1de1b2d2ff91cf2674415cc7cddab2ca1b01ae29774bd5fdf/docstring_parser-0.18.0.tar.gz", hash = "sha256:292510982205c12b1248696f44959db3cdd1740237a968ea1e2e7a900eeb2015", size = 29341, upload-time = "2026-04-14T04:09:19.867Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/a7/5f/ed01f9a3cdffbd5a008556fc7b2a08ddb1cc6ace7effa7340604b1d16699/docstring_parser-0.18.0-py3-none-any.whl", hash = "sha256:b3fcbed555c47d8479be0796ef7e19c2670d428d72e96da63f3a40122860374b", size = 22484, upload-time = "2026-04-14T04:09:18.638Z" },
+]
+
 [[package]]
 name = "ecdsa"
 version = "0.19.2"
@@ -740,6 +749,7 @@ dependencies = [
 
 [package.dev-dependencies]
 dev = [
+    { name = "docstring-parser" },
     { name = "mypy" },
     { name = "ruff" },
     { name = "taskipy" },
@@ -772,6 +782,7 @@ requires-dist = [
 
 [package.metadata.requires-dev]
 dev = [
+    { name = "docstring-parser", specifier = ">=0.18.0" },
     { name = "mypy", specifier = ">=2.1.0" },
     { name = "ruff", specifier = ">=0.15.14" },
     { name = "taskipy", specifier = ">=1.14.1" },