feat: enhance README with detailed environment variables and build scripts for local, test, and production deployments

README.md

@@ -52,13 +52,64 @@ Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/bui
 This project is configured with multiple environments for seamless deployments and testing.
 
 ### Environment Variables
-- `.env` / `.env.local`: Used for local development (default points to `http://localhost:5173`).
-- `.env.test`: Used for test environments (points to `http://localhost:5173`).
-- `.env.production`: Used for the live production build (points to `https://app.docqube.com/login`).
+- `.env`: Used by `npm run local` and points to `http://localhost:5173/login`.
+- `.env.test`: Used by `npm run test` and `npm run build:test`; points to `https://docqubeapp-test.maskantech.in/login`.
+- `.env.production`: Used by `npm run build:production` and `npm run prod`; points to `https://app.docqube.com/login`.
 
 **Note:** Environment files (`.env*`) are ignored in Git to keep variables secure. Make sure you create them locally if you clone this repository.
 
 ### Build Scripts
-- `npm run dev`: Starts the local development server (uses `.env` / `.env.local`).
-- `npm run build:test`: Uses `dotenv-cli` to load `.env.test` and runs the Next.js build.
-- `npm run build:production`: Uses `dotenv-cli` to load `.env.production` and runs the Next.js build.
+- `npm run local`: Starts the local development server using `.env`.
+- `npm run test`: Starts the development server using `.env.test`.
+- `npm run build:local`: Builds the application using `.env`.
+- `npm run build:test`: Builds the application using `.env.test`.
+- `npm run build:production`: Builds the application using `.env.production`.
+- `npm run prod`: Starts the production server using `.env.production`.
+
+### Production Deployment Artifact
+
+The Next.js configuration uses standalone output. Build the production artifact with:
+
+```bash
+npm ci
+npm run build:production
+```
+
+The deployment must include:
+
+
+Prepare the standalone artifact after building:
+
+```bash
+cp -r public .next/standalone/
+cp -r .next/static .next/standalone/.next/
+```
+
+On Windows PowerShell, use this equivalent sequence because `cp` does not merge existing directories:
+
+```powershell
+Remove-Item -Recurse -Force .next\standalone\public -ErrorAction SilentlyContinue
+Remove-Item -Recurse -Force .next\standalone\.next\static -ErrorAction SilentlyContinue
+Copy-Item public .next\standalone\public -Recurse
+Copy-Item .next\static .next\standalone\.next\static -Recurse
+```
+
+Start the standalone server with:
+
+```bash
+node .next/standalone/server.js
+```
+
+On Windows PowerShell:
+
+```powershell
+$env:PORT = "3000"
+$env:HOSTNAME = "127.0.0.1"
+node .next\standalone\server.js
+```
+
+For Nginx deployment, run the server on an internal port and reverse proxy to it:
+
+```bash
+PORT=3000 HOSTNAME=127.0.0.1 node .next/standalone/server.js
+```