feat(k6): add run-k6.sh wrapper script

- Enables xk6-dashboard live view at http://localhost:5665
- Exports self-contained dashboard HTML report on completion
- Passes BASE_URL and REPORT_DIR env vars through to k6
- Accepts optional test script path argument (defaults to customers.js)

Author: ilroberts-ns

tests/k6/run-k6.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPORT_DIR="${REPORT_DIR:-$SCRIPT_DIR/reports}"
+BASE_URL="${BASE_URL:-http://localhost:5173}"
+TEST_SCRIPT="${1:-$SCRIPT_DIR/customers.js}"
+
+mkdir -p "$REPORT_DIR"
+
+echo "Running k6 test: $TEST_SCRIPT"
+echo "Target:          $BASE_URL"
+echo "Reports dir:     $REPORT_DIR"
+echo "Dashboard:       http://localhost:5665"
+echo ""
+
+K6_WEB_DASHBOARD=true \
+K6_WEB_DASHBOARD_EXPORT="$REPORT_DIR/dashboard-$(date -u +%Y-%m-%dT%H-%M-%SZ).html" \
+k6 run \
+  -e BASE_URL="$BASE_URL" \
+  -e REPORT_DIR="$REPORT_DIR" \
+  "$TEST_SCRIPT"