Compaction fixes (observed in a real long run):
- the summary message's zeroed tokens froze the goal counter at its
pre-compaction value; segments now close with the previously displayed
total as a continuity floor
- audits and continuations after a summary tail now take execution params
(provider/model/agent/variant) from the newest non-summary assistant
turn instead of inheriting agent 'compaction' and the summarize model
File-backed objectives:
- the objective text lives in <data-dir>/goals/<sessionId>.md, keyed by
session id (one goal per session, a new goal overwrites the file);
metadata carries only an objectiveFile flag so session.updated fanout
stays light, and never a path — ids are pattern-validated before any
filesystem access
- limit raised to 5000 chars, no snapshot field: the UI fetches content
via PUT/GET/DELETE /api/goals/objective/:sessionId (behind the blanket
/api auth gate), writes the file before stamping metadata, and falls
back to an inline objective when the write fails
- the loop reads the file fresh on every tick, so objectives are
live-editable mid-goal; a missing file falls back to the inline text
- scheduled goal tasks write the objective file server-side; VS Code
degrades to the audit note (route unavailable there by design)
