A new explanation doc making the task model explicit: lifecycle state
(outstanding → done/dropped) is orthogonal to attention (white/orange/red/
blue), attention only matters while outstanding, and On Deck (blue) is a live
"later" task — NOT the same as dropped ("let go", terminal). Covers delete/
tombstone (soft-delete that keeps the context doc) and a table of where each
task shows up (agenda / search / export). Cross-links design §6.2/§6.3 and
tech-spec §4.3/§7/§8.1/§12; wired into the explanation index.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
