feat(P0): Add JetStream streams, DLQ, timeout policy

scripts/nats/check_jetstream.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+# JetStream Health Check Script
+# Перевіряє статус streams та consumers
+
+set -e
+
+NATS_URL="${NATS_URL:-nats://dagi-nats-node1:4222}"
+
+echo "=== JETSTREAM STATUS ==="
+echo ""
+
+# Streams
+echo "1. Streams:"
+docker run --rm --network dagi-network natsio/nats-box:latest nats -s "$NATS_URL" stream ls 2>/dev/null || {
+    echo "   ❌ Failed to list streams"
+    exit 1
+}
+
+echo ""
+echo "2. Consumers:"
+for stream in ARTIFACT_JOBS DLQ; do
+    echo "   Stream: $stream"
+    docker run --rm --network dagi-network natsio/nats-box:latest nats -s "$NATS_URL" consumer ls "$stream" 2>/dev/null || echo "   No consumers"
+done
+
+echo ""
+echo "3. Stream Stats:"
+for stream in ARTIFACT_JOBS DLQ; do
+    echo "   --- $stream ---"
+    docker run --rm --network dagi-network natsio/nats-box:latest nats -s "$NATS_URL" stream info "$stream" 2>/dev/null | grep -E "Messages:|Bytes:|Consumers:" || echo "   Error getting info"
+done
+
+echo ""
+echo "4. Consumer Lag (ARTIFACT_JOBS):"
+docker run --rm --network dagi-network natsio/nats-box:latest nats -s "$NATS_URL" consumer info ARTIFACT_JOBS render_pdf_worker 2>/dev/null | grep -E "Unprocessed|Ack Pending|Redelivered" || echo "   No consumer"
+
+echo ""
+echo "=== CHECK COMPLETE ==="