* feat(costs): redesign session cost tracking with wisps and daily digests
Implement the wisp-based cost tracking architecture per gt-cm900:
- gt costs record now creates ephemeral wisps (not exported to JSONL)
to avoid log-in-database pollution with O(sessions/day) events
- gt costs digest aggregates yesterday's session wisps into a single
permanent "Cost Report YYYY-MM-DD" bead for audit purposes
- gt costs query updated: --today queries wisps, --week queries
digest beads + today's wisps
- gt costs migrate closes legacy open session.ended beads
- Deacon patrol formula updated with costs-digest step
The new architecture:
Session ends -> Wisp (fast, N/day) -> Patrol digest -> Bead (1/day)
This preserves audit trail while keeping issues.jsonl clean.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* chore: sync canonical formula with embedded copy
Update .beads/formulas/ with the costs-digest step added to
mol-deacon-patrol.formula.toml. The go:generate copies from
.beads/formulas/ to internal/formula/formulas/.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
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