Fix HTTPX stream_bidi plugin bug preventing connection cleanup

Add monkey-patch for missing inflight? method in HTTPX::Plugins::StreamBidi::Signal class. This fixes NoMethodError when closing persistent bidirectional streaming connections, which is required for incremental rendering feature.

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Co-Authored-By: Claude <[email protected]>

Author: AbanoubGhadban

react_on_rails_pro/lib/react_on_rails_pro.rb

@@ -2,6 +2,9 @@
 
 require "rails"
 
+# Apply HTTPX bug fix for stream_bidi plugin
+require "react_on_rails_pro/httpx_stream_bidi_patch"
+
 require "react_on_rails_pro/request"
 require "react_on_rails_pro/version"
 require "react_on_rails_pro/constants"

react_on_rails_pro/lib/react_on_rails_pro/httpx_stream_bidi_patch.rb

@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+# Temporary monkey-patch for HTTPX bug with stream_bidi plugin + persistent connections
+#
+# Issue: When using HTTPX with both `persistent: true` and `.plugin(:stream_bidi)`,
+# calling `session.close` raises NoMethodError: undefined method `inflight?` for
+# an instance of HTTPX::Plugins::StreamBidi::Signal
+#
+# Root cause: The StreamBidi::Signal class is registered as a selectable in the
+# selector but doesn't implement the `inflight?` method required by Selector#terminate
+# (called during session close at lib/httpx/selector.rb:64)
+#
+# This patch adds the missing `inflight?` method to Signal. The method returns false
+# because Signal objects are just pipe-based notification mechanisms to wake up the
+# selector loop - they never have "inflight" HTTP requests or pending data buffers.
+#
+# The `unless method_defined?` guard ensures this patch won't override the method
+# when the official fix is released, making it safe to keep in the codebase.
+#
+# Can be removed once httpx releases an official fix.
+# Affected versions: httpx 1.5.1 (and possibly earlier)
+# See: https://github.com/HoneyryderChuck/httpx/issues/XXX
+
+module HTTPX
+  module Plugins
+    module StreamBidi
+      class Signal
+        unless method_defined?(:inflight?)
+          def inflight?
+            false
+          end
+        end
+      end
+    end
+  end
+end