Remove the rate limit for the forward auth system

Dockerfile

@@ -11,7 +11,7 @@
 ARG RUBY_VERSION=3.4.6
 FROM docker.io/library/ruby:$RUBY_VERSION-slim AS base
 
-LABEL org.opencontainers.image.source https://github.com/dkam/clinch
+LABEL org.opencontainers.image.source=https://github.com/dkam/clinch
 
 # Rails app lives here
 WORKDIR /rails

app/controllers/api/forward_auth_controller.rb

@@ -3,7 +3,7 @@ module Api
     # ForwardAuth endpoints need session storage for return URL
     allow_unauthenticated_access
     skip_before_action :verify_authenticity_token
-    rate_limit to: 100, within: 1.minute, only: :verify, with: -> { head :too_many_requests }
+    # No rate limiting on forward_auth endpoint - proxy middleware hits this frequently
 
     # GET /api/verify
     # This endpoint is called by reverse proxies (Traefik, Caddy, nginx)