feat(dev): add local development docs, update tswatch preset and add Playwright screenshots

readme.md

@@ -130,6 +130,68 @@ volumes:
 
 The server listens on port 2999 by default.
 
+## 🛠️ Local Development
+
+### Prerequisites
+
+- Node.js 20+
+- pnpm
+- MongoDB (local or remote)
+- SMTP server (for email verification in registration flow)
+
+### Getting Started
+
+```bash
+# Clone the repository
+git clone https://code.foss.global/idp.global/idp.global.git
+cd idp.global
+
+# Install dependencies
+pnpm install
+
+# Build the project
+pnpm build
+
+# Start development server with hot reload
+pnpm watch
+```
+
+The server runs on **http://localhost:2999** with:
+- 🔄 Auto-restart backend on changes (`ts/`)
+- 📦 Automatic frontend bundle rebuilding (`ts_web/`)
+
+### Environment Setup
+
+Create environment variables for the backend:
+
+```bash
+export MONGODB_URL=mongodb://localhost:27017/idp-dev
+export IDP_BASEURL=http://localhost:2999
+export INSTANCE_NAME=idp-dev
+```
+
+### Development Routes
+
+| Route | Description |
+|-------|-------------|
+| `/` | Welcome/landing page |
+| `/login` | Sign in form |
+| `/register` | New user registration |
+| `/account` | User dashboard (requires auth) |
+
+### 🔑 Default Development Credentials
+
+For local development with the test database, use:
+
+| Field | Value |
+|-------|-------|
+| **Email/Username** | `admin@idp.global` or `admin` |
+| **Password** | `admin` |
+
+This account has `isGlobalAdmin: true` for full platform access including the admin panel at `/account/admin`.
+
+> ⚠️ **Security Note**: These credentials are for local development only. Never use default credentials in production environments.
+
 ## 📦 Published Packages
 
 This monorepo publishes the following npm packages: