The plan recorded false history after a re-plan and the activity panel
showed fabricated, churning timestamps. Two bugs compounding on one event
stream.
Plan drift (P0.1):
- proposePlan seq is now 1..N per generation; (session,generation,seq) is
the addressing key. The model's 1-based update_plan_step calls always map
to the CURRENT plan after a re-plan, instead of resurrecting a superseded
`replaced` row as done while the live work went unrecorded.
- updatePlanStep resolves against MAX(generation); a stale/out-of-range seq
returns errPlanStepNotFound (never touches a superseded generation).
- getPlanSteps returns only the current generation by default; ?all=true
keeps the audit/eval view (plan_generations assertion).
- completeTask auto-close scopes to the current gen, stamps started_at, and
emits one plan.step.finished per closed step so the panel converges
instead of freezing on "running" after completion (P1.1).
- propose_plan result enumerates step seqs; writeback detector matches
"write back"/"writeback"/"upsert_knowledge" so a natural-language final
step isn't doubled (P1.2).
- migration 029 renumbers existing seq per generation + unique index.
Activity panel (P0.2 / P1.1, web):
- computeActivityLog uses the real message created_at for tool calls; live
entries fall back to wall-clock frozen on first sight, killing the 3s
poll churn. Steps use real started_at.
- dropped plan-step events warn + count instead of a silent no-op.
Tests: TestProposePlan updated; + generation-relative-seq and auto-close
event-emission regression tests; + web activity purity/timestamp tests.
VERSION: 0.14.0 -> 0.14.1
