docs: add vite-plugins index and port-checker, update regions4j titles

docs/en-gb/projects/regions4j/index.mdx

@@ -1,5 +1,5 @@
 ---
-title: regions4j
+title: Regions for Java
 ---
 
 ## Introduction

docs/en-gb/projects/vite-plugins/index.mdx

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+---
+title: Vite Plugins
+---
+
+## Overview
+
+A collection of Vite plugins developed and maintained by OnixByte. Each plugin is designed to solve a specific problem in the Vite development workflow — lightweight, zero-dependency, and plug-and-play.
+
+## Available Plugins
+
+- **[Port Checker](/projects/vite-plugins/port-checker)** — Warns when the dev server listens on a browser-restricted port (per the Fetch specification), helping you avoid silent connection failures.

docs/en-gb/projects/vite-plugins/port-checker/index.mdx

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+---
+title: Port Checker
+---
+
+import { Tabs, Tab } from "@rspress/core/theme"
+
+## Introduction
+
+**vite-plugin-port-checker** is a lightweight Vite plugin that warns you when the dev server is listening on a port blocked by common browsers. Browsers such as Chrome and Firefox maintain a [list of restricted ports](https://fetch.spec.whatwg.org/#port-blocking) — typically those associated with well-known protocols like SMTP, SSH, and DNS — and refuse to connect to them. Accidentally running your dev server on one of these ports leads to a confusing "connection refused" or "blocked" error with no clear explanation.
+
+This plugin detects the situation at startup and prints a clear, colour-coded warning to the console, advising you to change the `server.port` setting in your Vite configuration.
+
+## Features
+
+- **Automatic Detection** — Checks the dev server port against the complete Fetch spec port-blocking list (68 restricted ports).
+- **Clear Warnings** — Yellow-highlighted console output with actionable guidance.
+- **Zero Configuration** — Works out of the box with no options to set.
+- **Lightweight** — Single-file plugin with no dependencies beyond Vite itself.
+
+## Installation
+
+<Tabs>
+  <Tab label="npm">
+    ```bash
+    npm install vite-plugin-port-checker -D
+    ```
+  </Tab>
+  <Tab label="pnpm">
+    ```bash
+    pnpm add vite-plugin-port-checker -D
+    ```
+  </Tab>
+</Tabs>
+
+## Usage
+
+Add the plugin to your `vite.config.ts`:
+
+```ts
+// vite.config.ts
+import { defineConfig } from "vite"
+import checkRestrictedPort from "vite-plugin-port-checker"
+
+export default defineConfig({
+  plugins: [checkRestrictedPort()],
+})
+```
+
+When the dev server starts on a restricted port (e.g. port 25, 22, or 53), you will see:
+
+```
+[Warning] The current listening port 25 is categorised as a restricted port
+by most browsers. This may prevent you from accessing the application.
+Please consider changing the port in your 'vite.config.ts' or 'vite.config.js'
+via 'server.port'.
+```
+
+## How It Works
+
+The plugin hooks into Vite's `configureServer` lifecycle. Once the HTTP server emits the `listening` event, the plugin inspects the bound port and checks it against the hardcoded set of 68 restricted ports defined in the [Fetch specification](https://fetch.spec.whatwg.org/#port-blocking). If there is a match, a yellow `console.warn` message alerts the developer.
+
+## Requirements
+
+- Vite 3.0.0 or later
+
+## License
+
+vite-plugin-port-checker is open-source software released under the MIT License.

docs/zh-hans/projects/regions4j/index.mdx

@@ -1,5 +1,5 @@
 ---
-title: regions4j
+title: Regions for Java
 ---
 
 ## 介绍

docs/zh-hans/projects/vite-plugins/index.mdx

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+---
+title: Vite 插件
+---
+
+## 概览
+
+由 OnixByte 开发和维护的 Vite 插件合集。每个插件旨在解决 Vite 开发工作流中的特定问题 — 轻量级、零依赖、即插即用。
+
+## 可用插件
+
+- **[Port Checker](/projects/vite-plugins/port-checker)** — 当开发服务器监听浏览器限制的端口（依据 Fetch 规范）时发出警告，帮助您避免无响应的连接失败。

docs/zh-hans/projects/vite-plugins/port-checker/index.mdx

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+---
+title: Port Checker
+---
+
+import { Tabs, Tab } from "@rspress/core/theme"
+
+## 介绍
+
+**vite-plugin-port-checker** 是一个轻量级的 Vite 插件，可在开发服务器监听被常见浏览器屏蔽的端口时发出警告。Chrome 和 Firefox 等浏览器维护了一份[受限制端口列表](https://fetch.spec.whatwg.org/#port-blocking) — 这些端口通常与 SMTP、SSH 和 DNS 等知名协议关联 — 并拒绝连接这些端口。如果不小心将开发服务器运行在这些端口上，会导致令人困惑的"连接被拒绝"或"已被屏蔽"错误，且没有任何明确的解释。
+
+该插件会在启动时检测到这种情况，并向控制台打印一条清晰且带有颜色标记的警告，建议您修改 Vite 配置中的 `server.port` 设置。
+
+## 特性
+
+- **自动检测** — 对照完整的 Fetch 规范端口屏蔽列表（68 个受限端口）检查开发服务器端口。
+- **清晰的警告** — 黄色高亮控制台输出，并提供可操作的指导。
+- **零配置** — 开箱即用，无需设置任何选项。
+- **轻量级** — 单文件插件，除 Vite 本身外无任何依赖。
+
+## 安装
+
+<Tabs>
+  <Tab label="npm">
+    ```bash
+    npm install vite-plugin-port-checker -D
+    ```
+  </Tab>
+  <Tab label="pnpm">
+    ```bash
+    pnpm add vite-plugin-port-checker -D
+    ```
+  </Tab>
+</Tabs>
+
+## 使用
+
+在 `vite.config.ts` 中添加插件：
+
+```ts title="vite.config.ts"
+import { defineConfig } from "vite"
+import checkRestrictedPort from "vite-plugin-port-checker"
+
+export default defineConfig({
+  plugins: [checkRestrictedPort()],
+})
+```
+
+当开发服务器启动在受限端口（如 25、22 或 53 端口）时，您将看到：
+
+```
+[Warning] The current listening port 25 is categorised as a restricted port
+by most browsers. This may prevent you from accessing the application.
+Please consider changing the port in your 'vite.config.ts' or 'vite.config.js'
+via 'server.port'.
+```
+
+## 工作原理
+
+该插件通过钩入 Vite 的 `configureServer` 生命周期工作。当 HTTP 服务器触发 `listening` 事件后，插件检查绑定的端口号，并与 [Fetch 规范](https://fetch.spec.whatwg.org/#port-blocking)中定义的 68 个受限端口进行比对。如果匹配，则通过黄色的 `console.warn` 消息提醒开发者。
+
+## 要求
+
+- Vite 3.0.0 或更高版本
+
+## 许可证
+
+vite-plugin-port-checker 是采用 MIT 许可证发布的开源软件。