feat(agent): hierarchical executor with path resolve, runtime probe, quiet UI

Make Zed Agent closer to Cursor: deterministic DevOps path index, live Traefik
port probe before blind edits, stop-after-edit, and quieter Russian progress.

scripts/diag-hang3.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -euo pipefail
+ssh -o BatchMode=yes eventhub-ift bash -s <<'REMOTE'
+set -euo pipefail
+cd /opt/ai-router-stack
+set -a; source .env; set +a
+echo "== Spend after 19:06 =="
+PG=$(docker ps -q -f name=ai-router_postgres | head -1)
+docker exec -e PGPASSWORD="$POSTGRES_PASSWORD" "$PG" \
+  psql -U "${POSTGRES_USER:-litellm}" -d "${POSTGRES_DB:-litellm}" -c "
+SELECT \"startTime\", status, model, total_tokens, completion_tokens,
+       coalesce(\"request_duration_ms\",0) AS ms,
+       left(coalesce(metadata->'error_information'->>'error_message',''), 120) AS er
+FROM \"LiteLLM_SpendLogs\"
+WHERE \"startTime\" >= '2026-08-12 19:06:00'
+ORDER BY \"startTime\" DESC;
+"
+echo "== router since 19:06 full agent lines =="
+docker service logs --since 15m --raw ai-router_router 2>&1 \
+  | grep -iE '19:0[6-9]|19:1|executor|tool_loop|408|HTTP Request|kickstart|escalate|fallback|synth|no tool|POST /v1' \
+  | tail -60
+REMOTE