feat: argo-precompute.sh — regenerate fxcache on PVC

Usage: ./scripts/argo-precompute.sh [--branch main] [--watch]
Deletes old fxcache, builds precompute binary, runs with MBP-10 +
trades data. OFI_DIM=20 (20 microstructure features). ~5-10 min.

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

scripts/argo-precompute.sh

@@ -0,0 +1,77 @@
+#!/usr/bin/env bash
+# Regenerate fxcache on PVC from MBP-10 + trades data.
+# Usage: ./scripts/argo-precompute.sh [--branch main] [--watch]
+set -euo pipefail
+
+BRANCH="main"
+WATCH=false
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --branch) BRANCH="$2"; shift 2;;
+    --watch)  WATCH=true; shift;;
+    -h|--help)
+      echo "Usage: $0 [--branch <branch>] [--watch]"
+      echo "  Regenerates fxcache on PVC with OFI_DIM=20 (20 microstructure features)"
+      exit 0;;
+    *) echo "Unknown option: $1"; exit 1;;
+  esac
+done
+
+echo "=== Argo Precompute fxcache ==="
+echo "  branch: $BRANCH"
+echo ""
+
+WORKFLOW=$(cat <<EOF | kubectl -n foxhunt create -f - -o name
+apiVersion: argoproj.io/v1alpha1
+kind: Workflow
+metadata:
+  generateName: precompute-fxcache-
+spec:
+  entrypoint: precompute
+  volumes:
+    - name: training-data
+      persistentVolumeClaim:
+        claimName: training-data-pvc
+  templates:
+    - name: precompute
+      nodeSelector:
+        k8s.scaleway.com/pool-name: ci-compile-cpu
+      container:
+        image: rg.fr-par.scw.cloud/foxhunt/ci-builder:latest
+        command: ["/bin/bash", "-c"]
+        args:
+          - |
+            set -ex
+            cd /workspace
+            git clone --depth 1 --branch ${BRANCH} ssh://root@100.90.76.85:2222/root/foxhunt.git .
+            rm -f /mnt/training-data/feature-cache/*.fxcache
+            SQLX_OFFLINE=true cargo build -p ml --release --example precompute_features
+            echo "yes" | SQLX_OFFLINE=true ./target/release/examples/precompute_features \\
+              --data-dir /mnt/training-data/futures-baseline \\
+              --mbp10-data-dir /mnt/training-data/futures-baseline-mbp10 \\
+              --trades-data-dir /mnt/training-data/futures-baseline-trades
+            echo "=== Precompute complete ==="
+            ls -lh /mnt/training-data/feature-cache/*.fxcache
+            xxd /mnt/training-data/feature-cache/*.fxcache | head -2
+        volumeMounts:
+          - name: training-data
+            mountPath: /mnt/training-data
+        resources:
+          requests:
+            cpu: "4"
+            memory: "16Gi"
+          limits:
+            cpu: "8"
+            memory: "32Gi"
+      timeout: "30m"
+EOF
+)
+
+echo "Submitted: $WORKFLOW"
+
+if $WATCH; then
+  echo "Watching logs..."
+  sleep 5
+  kubectl -n foxhunt logs -f "$WORKFLOW" --tail=50
+fi