session reliability: reconnect, knowledge loop, retire request_execution

Phase 1 — crash recovery: SSE auto-reconnect + backoff, polling gate
during disconnect, connection banner with retry button, empty-response
retry 3x, non-terminal resume on empty response, persistent error cards.

Phase 2/4 — visibility + continuation: custom ExecutionStatus renderer,
approvals extracted on every tool_result (not just done), activity bar
with status/goal, SessionDigest live polling, Continue button.

Phase 3 — cleanup: complete_task auto-cancels orphaned approvals,
deletes assent/destructive window keys, propose_plan marks pending
steps as replaced, plan step seq-order enforcement.

Phase 5 — knowledge loop: list_lxcs state filter (active/destroyed),
SOUL.md unmissable writeback section, propose_plan validation nudge,
complete_task writeback check, upsert_knowledge about array support,
plan generation grouping in frontend, session approval count badge.

Retire request_execution — all mutations now route through run.
Updated SOUL.md, AGENTS.md, CLIENTS.md, skills, and agent system notes.

Migration 020: plan step generation column, audit_log session_id index,
nomos_plan_executions pending-approval index.

web/src/lib/renderers/index.ts

@@ -7,6 +7,7 @@ import { init as initBlastRadius } from './blast-radius'
 import { init as initChangeLog } from './change-log'
 import { init as initFleetSnapshot } from './fleet-snapshot'
 import { init as initMetricChart } from './metric-chart'
+import { init as initExecutionStatus } from './execution-status'
 
 initEntityCard()
 initHealthSummary()
@@ -17,3 +18,4 @@ initBlastRadius()
 initChangeLog()
 initFleetSnapshot()
 initMetricChart()
+initExecutionStatus()