fix: suppress healthcheck log spam in filebrowser quantum addon

Add a dedicated nginx health endpoint on 127.0.0.1:3001 with access_log
off that returns 200 at /health. Update HEALTHCHECK to verify both that
the filebrowser process is running (pgrep) and nginx is serving (curl to
health endpoint), avoiding direct HTTP requests to filebrowser that caused
log spam every 5 seconds.

filebrowser_quantum/Dockerfile

@@ -131,11 +131,11 @@ RUN \
         mv /etc/nginx/nginx.conf.new /etc/nginx/nginx.conf; \
     fi
 
-ENV HEALTH_PORT="8080" \
-    HEALTH_URL=""
+ENV HEALTH_PORT="3001" \
+    HEALTH_URL="/health"
 HEALTHCHECK \
     --interval=5s \
     --retries=5 \
     --start-period=30s \
     --timeout=25s \
-    CMD curl -A "HealthCheck: Docker/1.0" -s -f "http://127.0.0.1:${HEALTH_PORT}${HEALTH_URL}" &>/dev/null || curl -k --fail "https://127.0.0.1:${HEALTH_PORT}${HEALTH_URL}" &>/dev/null || exit 1
+    CMD pgrep -x filebrowser &>/dev/null || exit 1; curl -A "HealthCheck: Docker/1.0" -s -f "http://127.0.0.1:${HEALTH_PORT}${HEALTH_URL}" &>/dev/null || exit 1

filebrowser_quantum/rootfs/etc/nginx/servers/health.conf

@@ -0,0 +1,8 @@
+server {
+    listen 127.0.0.1:3001;
+    access_log off;
+
+    location /health {
+        return 200 'OK';
+    }
+}