improvement: fixed some package.json issues. readme files updated.

frontend/README.md

@@ -1,36 +1,63 @@
-This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app).
+# Dyolink — Frontend (Next.js)
 
-## Getting Started
+## Prerequisites
 
-First, run the development server:
+- **Node.js 20+** and **npm**
+
+## First-time setup
+
+1. **Clone the monorepo** and go to the frontend app:
+
+   ```bash
+   git clone <repository-url> dyolink
+   cd dyolink/frontend
+   ```
+
+2. **Install dependencies**
+
+   ```bash
+   npm install
+   ```
+
+3. **Environment**
+
+   Create **`.env.local`** in this folder (not committed to git) with the public URLs your browser will use:
+
+   ```env
+   NEXT_PUBLIC_APP_URL=http://localhost:3001
+   NEXT_PUBLIC_API_URL=http://localhost:3000/api
+   NEXT_PUBLIC_APP_NAME=Dyolink
+   ```
+
+   - Adjust **`NEXT_PUBLIC_API_URL`** if the Nest API runs on another host/port.
+   - These values are baked in at **build time** for production images; for local dev, restart `npm run dev` after changing them.
+
+## Run (development)
 
 ```bash
 npm run dev
-# or
-yarn dev
-# or
-pnpm dev
-# or
-bun dev
 ```
 
-Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+Open **`http://localhost:3001`** (dev server uses port **3001** so it does not clash with the API on 3000).
 
-You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+Ensure the backend is running and `NEXT_PUBLIC_API_URL` matches its base URL (including `/api` if your API is mounted there).
 
-This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.
+## After pulling latest `main`
 
-## Learn More
+```bash
+git pull
+npm install
+```
 
-To learn more about Next.js, take a look at the following resources:
+## Useful commands
 
-- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
-- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+| Command | Purpose |
+|--------|---------|
+| `npm run dev` | Development server (port 3001) |
+| `npm run build` | Production build |
+| `npm run start` | Serve production build (port 3000 — used inside Docker) |
+| `npm run lint` | ESLint |
 
-You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js) - your feedback and contributions are welcome!
+## Docker
 
-## Deploy on Vercel
-
-The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
-
-Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.
+Image build and build-args (`NEXT_PUBLIC_*`) are documented in the **repository root `README.md`**.