Add Pi signage Phase 1 player artifacts

Squash merge Sprint 14 Pi signage player artifacts.

apps/fc-signage-pi-player/scripts/flowercore-signage-launch.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+NODE_JSON="/etc/flowercore/signage-node.json"
+NODE_ID=$(jq -r '.nodeId' "$NODE_JSON")
+SIGNAGE_URL="${FC_SIGNAGE_URL:-https://signage.iamworkin.lan}"
+CERT_DIR="/etc/fc-signage-player"
+
+CERT_THUMB=$(openssl pkcs12 -in "$CERT_DIR/client.p12" -passin file:"$CERT_DIR/client.p12.pass" -nodes -nokeys 2>/dev/null \
+  | openssl x509 -fingerprint -sha256 -noout \
+  | sed 's/.*=//' \
+  | tr -d ':')
+
+PLAYER_URL="${SIGNAGE_URL}/player/${NODE_ID}/embed?token=${CERT_THUMB}"
+HTTP_STATUS=$(curl -sk -o /dev/null -w "%{http_code}" --max-time 5 \
+  --cert-type P12 --cert "$CERT_DIR/client.p12:$(cat "$CERT_DIR/client.p12.pass")" \
+  "$PLAYER_URL" || echo "000")
+
+mkdir -p /var/log/fc-signage-player
+if [[ "$HTTP_STATUS" != "200" && "$HTTP_STATUS" != "301" && "$HTTP_STATUS" != "302" ]]; then
+  echo "[$(date -Is)] /embed returned $HTTP_STATUS; falling back to /player/${NODE_ID}" \
+    >> /var/log/fc-signage-player/url-divergence.log
+  PLAYER_URL="${SIGNAGE_URL}/player/${NODE_ID}?token=${CERT_THUMB}"
+fi
+
+exec chromium-browser \
+  --kiosk \
+  --noerrdialogs \
+  --disable-infobars \
+  --disable-translate \
+  --disable-features=TranslateUI,InfiniteSessionRestore \
+  --autoplay-policy=no-user-gesture-required \
+  --password-store=basic \
+  --user-data-dir=/var/lib/fc-signage-player/profile \
+  --disk-cache-dir=/var/lib/fc-signage-player/cache \
+  --disk-cache-size=104857600 \
+  --no-first-run \
+  --no-default-browser-check \
+  --check-for-update-interval=2592000 \
+  --enable-features=OverlayScrollbar \
+  --start-fullscreen \
+  --window-position=0,0 \
+  --window-size=1920,1080 \
+  "$PLAYER_URL"