Two gaps in the standard workflow cycle caused planning document drift:
1. PROJECT.md was never updated during discuss → plan → execute → verify.
Only transition.md (optional) and complete-milestone evolved it.
Added an 'update_project_md' step to execute-phase.md that evolves
PROJECT.md after phase completion: moves requirements to Validated,
updates Current State, bumps Last Updated timestamp.
2. cmdPhaseComplete() in phase.cjs advanced 'Current Phase' but never
incremented 'Completed Phases' counter or recalculated 'percent'.
Added counter increment and percentage recalculation based on
completed/total phases ratio.
Addresses the workflow-level gaps identified in #956:
- PROJECT.md evolution in execute-phase (gap #2)
- completed_phases counter not incremented (gap #1 table row 3)
- percent never recalculated (gap #1 table row 4)
Fixes#956
7101ddcb9c