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-litellm-fails3.sh

@@ -0,0 +1,27 @@
+#!/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
+PG=$(docker ps -q -f name=ai-router_postgres | head -1)
+USER="${POSTGRES_USER:-litellm}"
+DB="${POSTGRES_DB:-litellm}"
+
+echo "== SpendLogs columns =="
+docker exec -e PGPASSWORD="$POSTGRES_PASSWORD" "$PG" \
+  psql -U "$USER" -d "$DB" -c "\d+ \"LiteLLM_SpendLogs\"" | head -80
+
+echo "== Recent failures =="
+docker exec -e PGPASSWORD="$POSTGRES_PASSWORD" "$PG" \
+  psql -U "$USER" -d "$DB" -c "
+SELECT \"startTime\", status, model,
+       left(coalesce(messages::text,''), 80) AS messages,
+       left(coalesce(metadata::text,''), 200) AS metadata,
+       left(coalesce(\"proxyServerRequest\"::text,''), 120) AS req,
+       left(coalesce(response::text,''), 200) AS response
+FROM \"LiteLLM_SpendLogs\"
+ORDER BY \"startTime\" DESC
+LIMIT 15;
+"
+REMOTE