docs(cli): init readme

.changeset/salty-donkeys-raise.md

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+---
+"deepdish": minor
+---
+
+Added README.

.cspell/tooling.txt

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apps/cli/README.md

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+# DeepDish CLI
+
+The DeepDish command line interface (CLI) provides a powerful way to interact with DeepDish Cloud services directly from your terminal.
+
+## Installation
+
+```bash
+npx deepdish [command]
+# or
+pnpx deepdish [command]
+# or
+yarn dlx deepdish [command]
+# or
+bunx deepdish [command]
+```
+
+## Requirements
+
+- Node.js >= 22
+- Internet connection for cloud operations
+
+## Getting Started
+
+### 1. Create an Account
+
+If you don't have a DeepDish account yet, create one:
+
+```bash
+deepdish cloud auth signup
+```
+
+This will open your browser to complete the signup process.
+
+### 2. Log In
+
+If you already have an account, log in:
+
+```bash
+deepdish cloud auth login
+```
+
+### 3. Create Your First Project
+
+Create a new project to get started:
+
+```bash
+deepdish cloud project create --name "my-awesome-project"
+```
+
+### 4. Select Your Project
+
+Choose which project to work with:
+
+```bash
+deepdish cloud project select
+```
+
+## Available Commands
+
+### Global Commands
+
+| Command | Description |
+|---------|-------------|
+| `deepdish --help` | Show help information |
+| `deepdish --version` | Show version information |
+
+### Cloud Commands
+
+The CLI is organized around cloud operations. All cloud-related commands are under the `cloud` namespace.
+
+#### Authentication (`cloud auth`)
+
+Manage your DeepDish Cloud account authentication.
+
+| Command | Description |
+|---------|-------------|
+| `deepdish cloud auth login` | Log in with an existing account |
+| `deepdish cloud auth logout` | Log out of your current account |
+| `deepdish cloud auth signup` | Create a new account |
+
+**Examples:**
+```bash
+# Log in to your account
+deepdish cloud auth login
+
+# Create a new account
+deepdish cloud auth signup
+
+# Log out
+deepdish cloud auth logout
+```
+
+#### Project Management (`cloud project`)
+
+Manage your DeepDish Cloud projects.
+
+| Command | Description |
+|---------|-------------|
+| `deepdish cloud project create --name <name>` | Create a new project |
+| `deepdish cloud project list` | List all of your projects |
+| `deepdish cloud project select` | Select a project to be your active one |
+
+**Examples:**
+```bash
+# Create a new project
+deepdish cloud project create --name "my-project"
+
+# List all projects
+deepdish cloud project list
+
+# Select a project to work with
+deepdish cloud project select
+```
+
+#### Project Keys (`cloud project key`)
+
+Manage API keys for your projects.
+
+| Command | Description |
+|---------|-------------|
+| `deepdish cloud project key create` | Create a new API key for the current project |
+
+**Examples:**
+```bash
+# Create a new API key
+deepdish cloud project key create
+```
+
+#### Billing (`cloud billing`)
+
+Manage your billing and subscription.
+
+| Command | Description |
+|---------|-------------|
+| `deepdish cloud billing open` | Open the billing page in your browser |
+
+**Examples:**
+```bash
+# Open billing page
+deepdish cloud billing open
+```
+
+## Command Structure
+
+The DeepDish CLI follows a hierarchical command structure:
+
+```
+deepdish [command] [subcommand] [options]
+```
+
+### Command Groups
+
+- **`cloud`** - All cloud-related operations
+  - **`auth`** - Authentication and account management
+  - **`project`** - Project management
+    - **`key`** - API key management
+  - **`billing`** - Billing and subscription management
+
+## Getting Help
+
+### Command Help
+
+Get help for any command or subcommand:
+
+```bash
+deepdish --help
+deepdish cloud --help
+deepdish cloud auth --help
+deepdish cloud project --help
+```
+
+### Interactive Selection
+
+Many commands provide interactive interfaces for better user experience. For example, when selecting a project, you'll see a list of available projects to choose from.
+
+## Environment Variables
+
+The CLI automatically handles environment configuration for different environments (development, staging, production).
+
+## Troubleshooting
+
+### Common Issues
+
+1. **Authentication Errors**
+   - Ensure you're logged in: `deepdish cloud auth login`
+   - Check your internet connection
+
+2. **Project Not Found**
+   - List your projects: `deepdish cloud project list`
+   - Select the correct project: `deepdish cloud project select`
+
+3. **Permission Errors**
+   - Ensure you have the necessary permissions for the project
+   - Contact your project administrator if needed
+
+### Getting Support
+
+If you encounter issues not covered here:
+
+1. Check the [DeepDish documentation](https://docs.deepdish.app)
+2. Contact us at [support@deepdish.app](mailto:support@deepdish.app)
+
+## Version History
+
+See [CHANGELOG.md](./CHANGELOG.md) for detailed version history and release notes.
+
+## Contributing
+
+The DeepDish CLI is open source. Contributions are welcome! Please see the main [DeepDish repository](https://github.com/byteslicehq/deepdish) for contribution guidelines.
+
+## License
+
+This project is licensed under the terms specified in the main DeepDish repository.