extractField in state-snapshot and buildStateFrontmatter only matches
the **Field:** bold markdown format, but STATE.md may use plain
Field: format depending on how it was generated. When all fields
return null, progress routing freezes with no matching condition.
Add dual-format parsing: try **Field:** first, fall back to plain
Field: with line-start anchor. Both instances in cmdStateSnapshot
and buildStateFrontmatter are updated consistently.
Closes#730
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
78eaabc3da