feat: add terminal completion support

README.md

@@ -69,6 +69,23 @@ For development or if Homebrew isn't available:
    poetry run python -m slcli
    ```
 
+## Shell Completion
+
+Enable tab completion for your shell to improve productivity:
+
+```bash
+# Install completion for your current shell (auto-detected)
+slcli completion --install
+
+# Or specify shell explicitly
+slcli completion --shell bash --install
+slcli completion --shell zsh --install
+slcli completion --shell fish --install
+slcli completion --shell powershell --install
+```
+
+After installation, restart your shell or source the completion file. See [docs/shell-completion.md](docs/shell-completion.md) for detailed instructions and troubleshooting.
+
 ## Quick Start
 
 1. **Login to SystemLink:**

docs/shell-completion.md

@@ -0,0 +1,187 @@
+# Shell Completion for slcli
+
+The SystemLink CLI supports shell completion for bash, zsh, fish, and PowerShell shells.
+
+## Quick Installation
+
+### Automatic Installation (Recommended)
+
+```bash
+# Install completion for your current shell
+slcli completion --install
+
+# Or specify a shell explicitly
+slcli completion --shell bash --install
+slcli completion --shell zsh --install
+slcli completion --shell fish --install
+slcli completion --shell powershell --install
+```
+
+### Manual Installation
+
+#### Bash
+
+1. Generate completion script:
+
+   ```bash
+   slcli completion --shell bash > ~/.bash_completion.d/slcli
+   ```
+
+2. Source the completion (add to ~/.bashrc for persistence):
+   ```bash
+   source ~/.bash_completion.d/slcli
+   ```
+
+#### Zsh
+
+1. Create completion directory and generate script:
+
+   ```bash
+   mkdir -p ~/.zsh_completions
+   slcli completion --shell zsh > ~/.zsh_completions/_slcli
+   ```
+
+2. Add to your ~/.zshrc:
+   ```bash
+   fpath=(~/.zsh_completions $fpath)
+   autoload -U compinit && compinit
+   ```
+
+#### Fish
+
+1. Generate completion script:
+   ```bash
+   slcli completion --shell fish > ~/.config/fish/completions/slcli.fish
+   ```
+
+Fish will automatically load the completion on next shell restart.
+
+#### PowerShell
+
+1. Generate completion script:
+
+   ```powershell
+   slcli completion --shell powershell > $env:USERPROFILE\Documents\PowerShell\slcli_completion.ps1
+   ```
+
+2. Add to your PowerShell profile:
+
+   ```powershell
+   # Add this line to your $PROFILE
+   . $env:USERPROFILE\Documents\PowerShell\slcli_completion.ps1
+   ```
+
+   Or run this command to add it automatically:
+
+   ```powershell
+   Add-Content $PROFILE ". `$env:USERPROFILE\Documents\PowerShell\slcli_completion.ps1"
+   ```
+
+## Using the Installation Script
+
+You can also use the dedicated installation script:
+
+```bash
+# Install for current shell (auto-detected)
+python scripts/install_completion.py
+
+# Install for specific shell
+python scripts/install_completion.py bash
+python scripts/install_completion.py zsh
+python scripts/install_completion.py fish
+python scripts/install_completion.py powershell
+```
+
+## What Gets Completed
+
+The completion system will help with:
+
+- Command names (`user`, `workspace`, `template`, etc.)
+- Subcommands (`list`, `get`, `create`, `update`, `delete`)
+- Option names (`--format`, `--filter`, `--id`, etc.)
+- Option values for choices (e.g., `--format` will complete `table` and `json`)
+
+## Troubleshooting
+
+### Completion Not Working
+
+1. Verify slcli is in your PATH:
+
+   ```bash
+   which slcli
+   ```
+
+2. Test completion generation:
+
+   ```bash
+   slcli completion --shell bash  # Should output bash completion script
+   ```
+
+3. For bash, ensure bash-completion is installed:
+
+   ```bash
+   # Ubuntu/Debian
+   sudo apt install bash-completion
+
+   # macOS with Homebrew
+   brew install bash-completion
+   ```
+
+4. Restart your shell or source the completion file manually.
+
+### Permission Issues
+
+If you get permission errors during installation, try:
+
+1. Install to user directory instead of system-wide
+2. Run with appropriate permissions for system directories
+3. Use the manual installation method
+
+### PowerShell Module Not Loading
+
+For PowerShell completion issues:
+
+1. Check if execution policy allows script loading:
+
+   ```powershell
+   Get-ExecutionPolicy
+   ```
+
+2. If restricted, set execution policy (as Administrator):
+
+   ```powershell
+   Set-ExecutionPolicy RemoteSigned
+   ```
+
+3. Verify your profile exists:
+
+   ```powershell
+   Test-Path $PROFILE
+   ```
+
+4. Create profile if it doesn't exist:
+   ```powershell
+   New-Item -Path $PROFILE -ItemType File -Force
+   ```
+
+## Advanced Usage
+
+### Custom Completion Location
+
+You can save completion scripts to custom locations:
+
+```bash
+# Save to custom file
+slcli completion --shell bash > /path/to/custom/completion
+
+# Source it manually
+source /path/to/custom/completion
+```
+
+### Integration with Package Managers
+
+If you're distributing slcli via package managers, consider:
+
+- **Homebrew**: Include completion in formula
+- **APT/RPM**: Install completion to standard system directories
+- **pip**: Use post-install hooks to offer completion installation