fix: Databento streaming download — CA certs + all 4 schemas

Root cause: ubuntu:24.04 has no CA certificates, rustls-native-certs
fails TLS handshake. Fix: apt-get install ca-certificates before
running download binary. Also add port 80 to network policy for apt.

Downloads OHLCV-1m, Trades, OHLCV-1s, MBP-10 via streaming API
(get_range) — parallel quarterly downloads, individual .dbn.zst files.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

infra/k8s/jobs/databento-download-streaming.yaml

@@ -0,0 +1,148 @@
+# Databento data download via streaming API (get_range).
+#
+# Binary pre-uploaded to /data/bin/download_baseline on training-data-pvc.
+# Universe configs loaded from configmap.
+#
+# Test: kubectl apply -f infra/k8s/jobs/databento-download-streaming.yaml
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: databento-download
+  namespace: foxhunt
+  labels:
+    app.kubernetes.io/part-of: foxhunt
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/component: databento-download
+  policyTypes:
+    - Egress
+  egress:
+    - ports:
+        - port: 53
+          protocol: UDP
+        - port: 53
+          protocol: TCP
+    - ports:
+        - port: 80
+          protocol: TCP
+        - port: 443
+          protocol: TCP
+    - ports:
+        - port: 443
+          protocol: TCP
+        - port: 6443
+          protocol: TCP
+      to:
+        - ipBlock:
+            cidr: 10.32.0.0/16
+        - ipBlock:
+            cidr: 172.16.0.4/32
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: databento-download-all
+  namespace: foxhunt
+  labels:
+    app.kubernetes.io/name: databento-download
+    app.kubernetes.io/part-of: foxhunt
+spec:
+  backoffLimit: 3
+  activeDeadlineSeconds: 86400
+  ttlSecondsAfterFinished: 3600
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: databento-download
+        app.kubernetes.io/part-of: foxhunt
+        app.kubernetes.io/component: databento-download
+    spec:
+      restartPolicy: OnFailure
+      securityContext:
+        runAsUser: 1000
+        runAsGroup: 1000
+        fsGroup: 1000
+      nodeSelector:
+        k8s.scaleway.com/pool-name: platform
+      containers:
+        - name: downloader
+          image: ubuntu:24.04
+          command: ["/bin/bash", "-c"]
+          env:
+            - name: RUST_LOG
+              value: debug
+            - name: DATABENTO_API_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: databento-credentials
+                  key: api-key
+          resources:
+            requests:
+              cpu: 500m
+              memory: 512Mi
+            limits:
+              cpu: "2"
+              memory: 2Gi
+          volumeMounts:
+            - name: training-data
+              mountPath: /data
+            - name: universe-configs
+              mountPath: /configs
+          args:
+            - |
+              set -e
+              apt-get update -qq > /dev/null 2>&1 && apt-get install -y -qq ca-certificates > /dev/null 2>&1
+              BINARY=/data/bin/download_baseline
+              chmod +x "$BINARY"
+
+              # Download 4 schemas: OHLCV-1m, Trades, OHLCV-1s, MBP-10
+              # Uses universe configs from the repo (mounted via configmap)
+
+              for SCHEMA in ohlcv-1m trades ohlcv-1s mbp-10; do
+                case $SCHEMA in
+                  ohlcv-1m) DIR=/data/futures-baseline; CONFIG_NAME=ohlcv-1m ;;
+                  trades)   DIR=/data/futures-baseline-trades; CONFIG_NAME=trades ;;
+                  ohlcv-1s) DIR=/data/futures-baseline-1s; CONFIG_NAME=ohlcv-1s ;;
+                  mbp-10)   DIR=/data/futures-baseline-mbp10; CONFIG_NAME=mbp-10 ;;
+                esac
+
+                cat > /tmp/universe-${CONFIG_NAME}.toml << TOML
+              [universe]
+              name = "es-${CONFIG_NAME}"
+              description = "ES.FUT ${SCHEMA}"
+              date_range_start = "2024-03-01"
+              date_range_end = "2026-03-30"
+              bar_size = "tick"
+              databento_dataset = "GLBX.MDP3"
+              databento_schema = "${SCHEMA}"
+
+              [[symbols]]
+              symbol = "ES.FUT"
+              exchange = "GLBX.MDP3"
+              asset_class = "Future"
+              TOML
+
+                echo ""
+                echo "=== Downloading ${SCHEMA} to ${DIR} ==="
+                mkdir -p "${DIR}/ES.FUT"
+                $BINARY \
+                  --universe-config /tmp/universe-${CONFIG_NAME}.toml \
+                  --output-dir "${DIR}/ES.FUT" \
+                  --yes || echo "WARN: ${SCHEMA} had failures (will retry on next run)"
+                echo ""
+                du -sh "${DIR}" 2>/dev/null
+              done
+
+              echo ""
+              echo "=== Final PVC summary ==="
+              du -sh /data/*/
+              df -h /data
+      volumes:
+        - name: training-data
+          persistentVolumeClaim:
+            claimName: training-data-pvc
+        - name: universe-configs
+          configMap:
+            name: databento-universe-configs