feat(watch mode): Add watch mode support with CLI options and enhanced documentation

readme.hints.md

@@ -217,6 +217,33 @@ The Enhanced Communication system has been implemented to provide rich, real-tim
 - Parser handles events asynchronously for real-time updates
 - Visual diffs are generated using custom diff algorithms for each data type
 
+## Watch Mode (Phase 4)
+
+tstest now supports watch mode for automatic test re-runs on file changes.
+
+### Usage
+```bash
+tstest test/**/*.ts --watch
+tstest test/specific.ts -w
+```
+
+### Features
+- **Automatic Re-runs**: Tests re-run when any watched file changes
+- **Debouncing**: Multiple rapid changes are batched (300ms delay)
+- **Clear Output**: Console is cleared before each run for clean results
+- **Status Updates**: Shows which files triggered the re-run
+- **Graceful Exit**: Press Ctrl+C to stop watching
+
+### Options
+- `--watch` or `-w`: Enable watch mode
+- `--watch-ignore`: Comma-separated patterns to ignore (e.g., `--watch-ignore node_modules,dist`)
+
+### Implementation Details
+- Uses `@push.rocks/smartchok` for cross-platform file watching
+- Watches the entire project directory from where tests are run
+- Ignores changes matching the ignore patterns
+- Shows "Waiting for file changes..." between runs
+
 ## Fixed Issues
 
 ### tap.skip.test(), tap.todo(), and tap.only.test() (Fixed)