Phase numbers reset per milestone (v1.0 Phase 1-26, v1.1 Phase 1-6,
v1.2 Phase 1-6). Functions that searched ROADMAP.md for phase headings
or checkboxes would match archived milestone entries inside <details>
blocks before reaching the current milestone's entries.
This caused:
- roadmap_complete: true for phases that aren't complete (checkbox
regex matched the archived [x] Phase N from a previous milestone)
- phase-complete marking the wrong checkbox (archived instead of current)
- phase-add computing wrong maxPhase from archived headings
- progress not showing phases defined in ROADMAP but not yet on disk
ca4ae7b3b8