## Implementation Complete ### Changes Made - Added `visualize` command to `cli.py` (lines 611-636) - Added `render_workflow_ascii_with_highlight()` function to `visualization.py` (lines 203-272) ### Features - `trckr-plow visualize` outputs ASCII workflow diagram - `trckr-plow visualize --help` shows command help - `trckr-plow visualize --step <step>` highlights a specific step - Step can be referenced by key, name, or step number - Highlighted steps appear with `>> Step Name <<` markers - Invalid step names show "Step not found" message ### Testing - All 672 tests pass - Linting passes with ruff - Manual verification of all acceptance criteria ### Exit codes - Command exits with 0 on success (verified)