chore: cleanup dependencies and add contributor documentation

- Add comprehensive "For Contributors" guide to README.md
- Remove unused dependencies: next-intl, zod, and @t3-oss/env-nextjs
- Delete obsolete environment configuration and helper files
- Add bundle analysis script to package.json

Author: kruton

README.md

@@ -3,3 +3,88 @@
 # ConnectBot home page
 
 Web page for [ConnectBot](https://connectbot.org/), the first open source SSH client on Android.
+
+## For Contributors
+
+### Prerequisites
+
+- [Node.js](https://nodejs.org/) 20 or later
+- [pnpm](https://pnpm.io/) 10 or later
+
+### Getting Started
+
+1. Clone the repository:
+   ```bash
+   git clone https://github.com/connectbot/connectbot.github.io.git
+   cd connectbot.github.io
+   ```
+
+2. Install dependencies:
+   ```bash
+   pnpm install
+   ```
+
+3. Start the development server:
+   ```bash
+   pnpm dev
+   ```
+
+   The site will be available at http://localhost:3000
+
+### Development Workflow
+
+The site is built with [Next.js](https://nextjs.org/) and [Nextra](https://nextra.site/), a documentation framework. Content is written in MDX (Markdown + JSX) in the `src/content/` directory.
+
+**Project structure:**
+- `src/content/` - MDX content files
+- `src/content/_meta.ts` - Page configuration (titles, navigation)
+- `src/app/` - Next.js App Router structure
+- `src/components/` - React components
+- `public/` - Static assets
+
+**Git hooks:**
+This project uses [Lefthook](https://github.com/evilmartians/lefthook) for Git hooks:
+- Pre-commit: Runs ESLint auto-fix and TypeScript type checking
+- Commit-msg: Validates conventional commit format
+
+### Building and Testing
+
+**Build the site:**
+```bash
+pnpm build
+```
+
+This generates a static export in the `./out` directory.
+
+**Lint your code:**
+```bash
+pnpm lint          # Check for errors
+pnpm lint:fix      # Auto-fix errors
+```
+
+**Type check:**
+```bash
+pnpm run check:types
+```
+
+**Check for unused dependencies:**
+```bash
+pnpm run check:deps
+```
+
+**Analyze bundle size:**
+```bash
+pnpm run analyze
+```
+
+### Deployment
+
+The site is automatically deployed to GitHub Pages when changes are pushed to the `develop` branch. The CI workflow:
+1. Runs linting and type checking
+2. Builds the static site
+3. Deploys to GitHub Pages
+
+You can preview the production build locally by serving the `./out` directory:
+```bash
+npx serve ./out
+```

next.config.ts

@@ -1,7 +1,6 @@
 import type { NextConfig } from 'next';
 import bundleAnalyzer from '@next/bundle-analyzer';
 import nextra from 'nextra';
-import './src/libs/Env';
 
 // Define the base Next.js configuration
 const baseConfig: NextConfig = {

package.json

@@ -1,5 +1,6 @@
 {
   "scripts": {
+    "analyze": "next experimental-analyze",
     "check:types": "tsc --noEmit --pretty",
     "check:deps": "knip",
     "dev": "next",
@@ -12,28 +13,22 @@
   "dependencies": {
     "@commitlint/cli": "^20.3.0",
     "@commitlint/config-conventional": "^20.3.0",
-    "@commitlint/prompt-cli": "^20.3.0",
-    "@t3-oss/env-nextjs": "^0.13.10",
     "next": "^16.1.1",
-    "next-intl": "^4.7.0",
     "next-themes": "^0.4.6",
     "nextra": "^4.6.1",
     "nextra-theme-docs": "^4.6.1",
     "qrcode.react": "^4.2.0",
     "react": "^19.2.3",
-    "react-dom": "^19.2.3",
-    "zod": "^4.3.5"
+    "react-dom": "^19.2.3"
   },
   "devDependencies": {
     "@antfu/eslint-config": "^6.7.3",
     "@commitlint/types": "^20.2.0",
     "@eslint-react/eslint-plugin": "^2.5.1",
     "@next/bundle-analyzer": "^16.1.1",
     "@next/eslint-plugin-next": "^16.1.1",
-    "@tailwindcss/postcss": "^4.1.18",
     "@types/node": "^25.0.3",
     "@types/react": "^19.2.7",
-    "@vitejs/plugin-react": "^5.1.2",
     "babel-plugin-react-compiler": "^1.0.0",
     "eslint": "^9.39.2",
     "eslint-plugin-format": "^1.2.0",
@@ -45,10 +40,7 @@
     "knip": "^5.80.0",
     "lefthook": "^2.0.13",
     "pagefind": "^1.4.0",
-    "semantic-release": "^25.0.2",
     "tailwindcss": "^4.1.18",
-    "typescript": "^5.9.3",
-    "vite": "^7.3.1",
-    "vite-tsconfig-paths": "^6.0.3"
+    "typescript": "^5.9.3"
   }
 }