Add environment configuration and error handling for Google AI Studio integration

.env.local.template

@@ -0,0 +1,3 @@
+# Google Gemini API Configuration
+# Get your API key from https://aistudio.google.com/app/apikey
+GEMINI_API_KEY=your_api_key_here

README.md

@@ -2,19 +2,76 @@
 <img width="1200" height="475" alt="GHBanner" src="https://github.com/user-attachments/assets/0aa67016-6eaf-458a-adb2-6e31a0763ed6" />
 </div>
 
-# Run and deploy your AI Studio app
+# NEXLYN - v2
 
-This contains everything you need to run your app locally.
+AI-powered MikroTik® Master Distributor platform built with Google AI Studio and Gemini API.
 
 View your app in AI Studio: https://ai.studio/apps/drive/1TooJrvvYNEPtXmyX5sfuyYKZ-ofUdW0j
 
-## Run Locally
+## Features
 
-**Prerequisites:**  Node.js
+- 🤖 AI-powered technical support using Google Gemini
+- 🌐 Real-time inventory management
+- 📱 Responsive design with dark mode
+- 🔍 Advanced product search and filtering
+- 💬 Integrated WhatsApp B2B communication
 
+## Prerequisites
 
-1. Install dependencies:
-   `npm install`
-2. Set the `GEMINI_API_KEY` in [.env.local](.env.local) to your Gemini API key
-3. Run the app:
-   `npm run dev`
+- Node.js (v18 or higher recommended)
+- A Google Gemini API key ([Get one here](https://aistudio.google.com/app/apikey))
+
+## Installation
+
+1. **Clone the repository** (if not already cloned)
+   ```bash
+   git clone <repository-url>
+   cd NEXLYN---v2
+   ```
+
+2. **Install dependencies**
+   ```bash
+   npm install
+   ```
+
+3. **Configure your API key**
+
+   Create a `.env.local` file in the root directory:
+   ```bash
+   cp .env.local.template .env.local
+   ```
+
+   Then edit `.env.local` and add your Gemini API key:
+   ```
+   GEMINI_API_KEY=your_actual_api_key_here
+   ```
+
+4. **Run the development server**
+   ```bash
+   npm run dev
+   ```
+
+   The app will be available at `http://localhost:3000`
+
+## Build for Production
+
+```bash
+npm run build
+npm run preview
+```
+
+## Technology Stack
+
+- **Framework**: React 19 with TypeScript
+- **Build Tool**: Vite
+- **AI**: Google Gemini API (@google/genai)
+- **Styling**: Tailwind CSS
+- **Charts**: Recharts
+
+## Environment Variables
+
+- `GEMINI_API_KEY` - Your Google Gemini API key (required)
+
+## Support
+
+For issues or questions, please open an issue in the repository or contact via WhatsApp.