/clean

Delete generated documentation and reset config. Removes output directory and clears generatedPaths.

# Clean Generated Documentation

Delete all generated documentation and reset the configuration.

## Steps

### 1. Load Configuration

Read `.dt-workspace` config to get output directory and generated paths.

### 2. Show What Will Be Deleted

Display summary of what will be removed:


### 3. Confirm Deletion

Unless --force flag is provided, ask for confirmation:
- "This will permanently delete all generated documentation. Continue? (y/N)"

### 4. Delete Files

Remove the output directory and all contents:


### 5. Update Configuration

Reset generatedPaths in `.dt-workspace`:


### 6. Disp...