The PRD workflow step-02 was refactored to be discovery-only with
forward references to steps 2b and 2c, but those files were never
created. This left a gap where the workflow jumped from classification
directly to success criteria with no executive summary generation.
- Add step-02b-vision.md: collaborative vision/differentiator discovery
- Add step-02c-executive-summary.md: generate and append exec summary
- Update step-02 nextStepFile to chain through 02b instead of skipping to 03
Update all references to the help task file from the old path
`_bmad/core/tasks/bmad-help.md` to the new path `_bmad/core/tasks/help.md`.
Affected files:
- 7 workflow step files across multiple workflows
- 1 IDE tool command generator (updated comments)