fix(streamer): drop fonts-vt323 (not in bookworm) and use node fetch for healthcheck

- fonts-vt323 doesn't exist in debian bookworm; vt323 is loaded via google fonts cdn anyway.
- node:22-bookworm-slim has no wget; switch healthcheck to node -e fetch.

docker-compose.yml

@@ -90,7 +90,7 @@ services:
     ports:
       - '172.17.0.1:12010:12010'
     healthcheck:
-      test: ['CMD', 'wget', '-q', '-O', '-', 'http://127.0.0.1:12010/health']
+      test: ['CMD', 'node', '-e', "fetch('http://127.0.0.1:12010/health').then(r=>r.json()).then(j=>{if(!j.ok)process.exit(1)}).catch(()=>process.exit(1))"]
       interval: 30s
       timeout: 5s
       retries: 3

streamer/Dockerfile

@@ -16,7 +16,6 @@ RUN apt-get update \
       chromium \
       ffmpeg \
       fonts-noto-cjk \
-      fonts-vt323 \
       ca-certificates \
       tini \
  && rm -rf /var/lib/apt/lists/*