Add Pi signage Phase 1 player artifacts

Squash merge Sprint 14 Pi signage player artifacts.

apps/fc-signage-pi-player/scripts/flowercore-signage-renew-cert.sh

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+CERT_DIR="/etc/fc-signage-player"
+NODE_JSON="/etc/flowercore/signage-node.json"
+SIGNAGE_URL="${FC_SIGNAGE_URL:-https://signage.iamworkin.lan}"
+
+[[ -s "$CERT_DIR/client.crt" ]] || { echo "no cert to renew"; exit 0; }
+
+if openssl x509 -in "$CERT_DIR/client.crt" -checkend $((30*24*3600)) -noout; then
+  exit 0
+fi
+
+NODE_ID=$(jq -r '.nodeId' "$NODE_JSON")
+NEW_KEY="$CERT_DIR/client.key.new"
+NEW_CSR="$CERT_DIR/client.csr.new"
+
+openssl ecparam -genkey -name prime256v1 -out "$NEW_KEY"
+openssl req -new -key "$NEW_KEY" -out "$NEW_CSR" \
+  -subj "/CN=${NODE_ID}/O=FlowerCore/OU=SignagePlayer-Pi"
+
+HTTP_STATUS=$(curl -sk -o /tmp/renew-response.json -w "%{http_code}" \
+  --cert "$CERT_DIR/client.crt" --key "$CERT_DIR/client.key" \
+  -X POST "${SIGNAGE_URL}/api/v1/nodes/${NODE_ID}/renew" \
+  -H "Content-Type: application/json" \
+  -d "$(jq -n --arg csr "$(cat "$NEW_CSR")" '{certificateSigningRequest: $csr}')")
+
+if [[ "$HTTP_STATUS" != "200" && "$HTTP_STATUS" != "201" ]]; then
+  echo "[$(date -Is)] renew: failed HTTP $HTTP_STATUS; leaving old cert in place" >&2
+  exit 5
+fi
+
+jq -r '.clientCertificatePem // .signedCertificatePem' /tmp/renew-response.json > "$CERT_DIR/client.crt.new"
+jq -r '.caCertificatePem' /tmp/renew-response.json > "$CERT_DIR/ca-chain.pem.new"
+P12_PASS=$(cat "$CERT_DIR/client.p12.pass")
+openssl pkcs12 -export -inkey "$NEW_KEY" -in "$CERT_DIR/client.crt.new" \
+  -certfile "$CERT_DIR/ca-chain.pem.new" \
+  -out "$CERT_DIR/client.p12.new" -password "pass:${P12_PASS}"
+
+mv "$CERT_DIR/client.key.new" "$CERT_DIR/client.key"
+mv "$CERT_DIR/client.crt.new" "$CERT_DIR/client.crt"
+mv "$CERT_DIR/ca-chain.pem.new" "$CERT_DIR/ca-chain.pem"
+mv "$CERT_DIR/client.p12.new" "$CERT_DIR/client.p12"
+
+chown fc-signage:fc-signage "$CERT_DIR"/client.*
+systemctl restart flowercore-signage-player-pi.service