Add trusted IP whitelist for rate limit bypass

Adds trusted_ips.list and trusted_ips.map files that exempt specific
IPs from all rate limiting rules. Supports both direct source IP
matching (is_trusted_ip) and proxy-header real IP matching
(is_whitelisted). Files are baked into the image and can be updated
by editing and rebuilding.

Adds phone system IP 172.116.197.166 to the whitelist.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Dockerfile

@@ -5,6 +5,8 @@ COPY ./templates /haproxy/templates
 COPY requirements.txt /haproxy/
 COPY haproxy_manager.py /haproxy/
 COPY scripts /haproxy/scripts
+COPY trusted_ips.list /etc/haproxy/trusted_ips.list
+COPY trusted_ips.map /etc/haproxy/trusted_ips.map
 RUN chmod +x /haproxy/scripts/*
 RUN pip install -r requirements.txt
 # Create log directories