# Phase Guidance Implementation

## Summary
Added actionable next-step guidance to all dashboard phases across the full stack.

## Changes

### automaton/dashboard/core/task.py
- Added `phase_guidance` property to `Task` dataclass providing per-phase actionable guidance text
- Added `blocker` property for identifying what blocks task progression
- Added `required_artifact_name` and `next_phase_name` helper properties

### automaton/dashboard/ui/app.py
- Exposed `phase_guidance`, `blocker`, `required_artifact_name`, `next_phase_name` in the `/api/tasks` JSON response

### automaton/dashboard/html/dashboard.js
- Added "What's Next" section in the detail modal rendering `phase_guidance`
- Added "What's Blocking" section rendering `blocker`
- Added status reason display on task cards

### automaton/dashboard/html/styles.css
- Added `.detail-guidance`, `.detail-blocker`, `.detail-status-reason` CSS classes