fix(docker): add missing Python deps, fix VPN routing and healthcheck

- Add missing packages to requirements.txt: requests, beautifulsoup4,
  fake-useragent, yt-dlp, urllib3
- Fix entrypoint.sh: replace grep -oP (GNU) with awk (BusyBox compat)
- Fix entrypoint.sh: add policy routing so LAN clients get responses
  via eth0 instead of through the WireGuard tunnel
- Change healthcheck from ping to curl (VPN provider blocks ICMP)
- Add start_period and increase retries for healthcheck
- Change external port mapping to 2000:8000
- Add podman-compose.prod.yml and push.sh to version control

Docker/Containerfile

@@ -18,7 +18,7 @@ COPY entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh
 
 # Health check: can we reach the internet through the VPN?
-HEALTHCHECK --interval=30s --timeout=10s --retries=3 \
-    CMD ping -c 1 -W 5 1.1.1.1 || exit 1
+HEALTHCHECK --interval=30s --timeout=10s --retries=5 \
+    CMD curl -sf --max-time 5 http://1.1.1.1 || exit 1
 
 ENTRYPOINT ["/entrypoint.sh"]