feat[cloudflare]: integrate FlareSolverr for automated Cloudflare challenge resolution

- Add Cloudflare bypass functionality using FlareSolverr service
- Configure FlareSolverr Docker service with environment options
- Add flaresolverr_url config option with default localhost fallback
- Replace manual Cloudflare challenge notification with automated solving attempt
- Create new cloudflare.js module with health check, challenge detection, and solution application

docker-compose.yml

@@ -1,5 +1,15 @@
 # start with `docker compose up`
 services:
+  flaresolverr:
+    image: flaresolverr/flaresolverr:latest
+    ports:
+      - "8191:8191"
+    environment:
+      - LOG_LEVEL=info
+      - LOG_HTML=false
+      - CAPTCHA_SOLVER=none
+    restart: unless-stopped
+
   free-games-claimer:
     container_name: fgc # is printed in front of every output line
     image: ghcr.io/vogler/free-games-claimer # otherwise image name will be free-games-claimer-free-games-claimer
@@ -15,6 +25,7 @@ services:
       # - EMAIL=foo@bar.org
       # - NOTIFY='tgram://...'
       - EG_MODE=new
+      - FLARESOLVERR_URL=http://flaresolverr:8191/v1
 
 volumes:
   fgc: