docs: update README to reflect pnpm and TypeScript

- Update tech stack section
- Replace npm commands with pnpm
- Add type-check script usage
- Add model configuration feature note

README.md

@@ -9,14 +9,16 @@ A lightweight Android chat application built with React and Capacitor for connec
 - **Dark Theme**: Sleek black/dark UI design
 - **Conversation Export**: Save chats as text, log, or markdown files
 - **Custom System Prompts**: Inject your own system prompts for personalized interactions
+- **Model Configuration**: Custom model name support for local LLMs
 - **Offline Ready**: Capacitor wrapper for native Android APK generation
 
 ## Tech Stack
 
-- **Frontend**: React (Web)
+- **Frontend**: React + TypeScript
 - **Mobile Wrapper**: Capacitor
-- **Build Tool**: Vite (recommended) or Create React App
-- **Testing**: Jest / React Testing Library
+- **Build Tool**: Vite
+- **Package Manager**: pnpm
+- **Testing**: Vitest + React Testing Library
 - **Android Studio**: For final APK generation
 
 ## Getting Started
@@ -24,25 +26,28 @@ A lightweight Android chat application built with React and Capacitor for connec
 ### Prerequisites
 
 - Node.js (v18+)
-- npm or yarn
+- pnpm
 - Android Studio (for APK building)
 - Capacitor CLI
 
 ### Installation
 
 ```bash
-# Install dependencies
-npm install
+# Install dependencies with pnpm
+pnpm install
 
 # Start development server
-npm run dev
+pnpm dev
 ```
 
 ### Build for Android
 
 ```bash
+# Type check TypeScript code
+pnpm type-check
+
 # Build the web app
-npm run build
+pnpm build
 
 # Sync with Capacitor
 npx cap sync