v13.41.0

# Build, release, and work-state visibility

## Workflow skills

- `build` delegates a coding session through `make-plan`, `do`, and `babysit`.
- `release` delegates publication through `version-bump` and `childhood`.
- `build-and-release` runs both, merging the ready PR before continuing from updated main.
- Restores the existing `childhood` skill so post-release verification is included.

The new wrappers are deliberately short. They reuse the existing workflows.

## Work-state telemetry

Adds privacy-preserving PostHog rollups for work-state usage by release, host platform, and recorded agent role. The rollups distinguish captured reads and writes, outcomes, native to-do use, instruction handoffs, and missing attribution.

MCP execution receipts also cover failures before a worker responds. They are a separate observation source and must not be added to captured-call totals.

Instruction handoffs are measured after the platform adapter formats the model-bound output and stdout succeeds. Cached context is included; discarded context and failed output are not counted as successful handoffs. Delayed or untimestamped captures cannot inherit a later instruction handoff.

These are diagnostic signals, not a compliance score. Returning instructions does not prove that a host accepted them or an agent followed them, and an ordinary question may correctly require no write.

No task titles, prompt text, project paths, or raw session/agent IDs are sent. Existing telemetry opt-out remains in effect. This release does not backfill earlier usage.

Local replay deduplication lasts 30 days; older events are dropped. Public/private turn boundaries remain content-free and prevent private activity from inheriting an earlier public prompt. Hosts without verified original timestamps remain outside captured prompt/tool totals.