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/explain-logs.sh

@@ -0,0 +1,32 @@
+#!/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 last 25m =="
+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 to_char(\"startTime\", 'HH24:MI:SS') AS t, status,
+       CASE
+         WHEN model LIKE '%qwen3.8-max%' THEN 'planner-Max'
+         WHEN model LIKE '%qwen3-coder%' THEN 'coder-30b'
+         WHEN model LIKE '%deepseek%' THEN 'DeepSeek'
+         WHEN model LIKE '%llama%' THEN 'Llama'
+         ELSE left(model, 40)
+       END AS role,
+       total_tokens AS tok, completion_tokens AS out,
+       coalesce(\"request_duration_ms\",0) AS ms,
+       left(coalesce(metadata->'error_information'->>'error_message',''), 80) AS er
+FROM \"LiteLLM_SpendLogs\"
+WHERE \"startTime\" >= now() - interval '25 minutes'
+ORDER BY \"startTime\" ASC;
+"
+echo
+echo "== Router agent timeline =="
+docker service logs --since 25m --raw ai-router_router 2>&1 \
+  | grep -iE 'path_index|path_resolve|hierarchical_agent phase|executor forward|executor result|escalate|408|400|rewrite|kickstart|no tool|mid-loop|synth|Выполн|plan' \
+  | grep -vE 'metrics|health|Waiting for|Application|Uvicorn|Finished server|Started server|Shutting' \
+  | tail -80
+REMOTE