Respect user-configured readiness timeout and simplify URI handling

- Remove timeout cap that prevented honoring user-specified timeouts
- Previously capped at 2 seconds with [config.server_readiness_timeout || 5, 2].min
- Now respects full configured timeout value (default: 5 seconds)
- Remove redundant uri.path.empty? check since readiness_path defaults to '/'

This allows users to configure longer timeouts for slow environments while
maintaining clean, simple code.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: justin808

lib/cypress_on_rails/server.rb

@@ -135,14 +135,11 @@ def wait_for_server(timeout = 30)
     def server_responding?
       config = CypressOnRails.configuration
       readiness_path = config.server_readiness_path || '/'
-      # Use shorter timeout for individual readiness checks since we poll in a loop
-      # The configured timeout is for slow CI, but each check should be quick
-      timeout = [config.server_readiness_timeout || 5, 2].min
+      timeout = config.server_readiness_timeout || 5
       uri = URI("http://#{host}:#{port}#{readiness_path}")
 
       response = Net::HTTP.start(uri.host, uri.port, open_timeout: timeout, read_timeout: timeout) do |http|
-        # Ensure path is never empty - default to '/'
-        http.get(uri.path.empty? ? '/' : uri.path)
+        http.get(uri.path)
       end
 
       # Accept 200-399 (success and redirects), reject 404 and 5xx