* fix: make sub-agent cards launch markers
Sub-agent tool calls no longer accumulate the child's activity into
`log`. Claude, Codex, OpenCode, OMP and Pi emit the card when the child
starts and when its label or status changes; the child's messages and
tool calls stay in the sub-agent's own timeline. The app no longer
renders a sub-agent log.
The wire schema makes `log` optional. Daemons still send `log: ""` so
apps that require the field keep parsing the card.
* fix(server): put a tintinweb foreground answer in the child timeline
A foreground @tintinweb/pi-subagents child has no session file, so its
answer only exists in the Agent tool result. Emit that text as the
child's assistant message when the child finishes. Tag every sub_agent
producer's `log: ""` with COMPAT(subagent-log) so the shim removal
finds them.
* fix(server): settle child compactions and keep sub-agent cards stable
- Codex: a child compaction shown as loading now completes on the
child's thread/compacted or turn end, once.
- Claude: a streamed child tool call's empty start input is a
placeholder, so the assistant message's input reaches its card.
- OMP: the task card follows only its first child, so later children
no longer re-send an unchanged card.
* fix(server): keep a gotgenes foreground answer on replay
A foreground @gotgenes/pi-subagents child finds its session file only
through the live runtime marker, which history does not keep. Without a
file, emit the spawn result text as the child's assistant message.
Mohamed Boudra
184ab66cde