feat(work-items): add an integrate-at-least-daily cadence to decompose's window bar #8328

Parent

Refs #8326 · Source: PLAN Phase 7, topic malleable-design-defaults

Depends on

• none: on the frontier now

Outcome

/work-items:decompose's window-bar row keeps the one-fresh-context-window bar and adds "integrate at least daily" as a practice-guidance cadence, not an estimate. It states no hours unit and no one-day cap. Sources: DORA trunk-based development and small batches, and Fowler's Continuous Integration ("at least daily" is the merge floor).

Why HITL: the wording must be agreed with the parallel Problem First effort's Work size and time-units rule before merge (plan DA-E). A human confirms that agreement.

Key interfaces

From the plan's ## Design › Module layout:

work-items skills/decompose | one-context-window bar plus integrate at least daily | proactive

Done when

• grep -c "at least daily" on the decompose SKILL.md returns ≥ 1, and grep -ciE "[0-9]+ hours" on it returns 0.
• Eval case (a case.yaml dir under the work-items plugin's evals/): a slice sized to the window bar is also checked for daily integration, with no hours estimate.
• The wording is confirmed against the Problem First effort's time-units rule.
• After the commit, bash scripts/check-changed-skills.sh origin/main exits 0.
• A changelog fragment for the work-items plugin.

Out of scope

• Any hours estimate or one-day cap.
• Other decompose checks.