Address review feedback: fix PR number and add unit tests

- Fix CHANGELOG PR reference (was 2125, now correct 2136)
- Add unit tests for suppress_unused_component_warnings configuration
  - Test default value is false
  - Test can be set to true
  - Test can be set to false explicitly

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

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

Author: justin808

CHANGELOG.md

@@ -25,7 +25,7 @@ Changes since the last non-beta release.
 
 #### Added
 
-- **Suppress Unused Component Warnings**: Added `suppress_unused_component_warnings` configuration option to disable console warnings about registered components that are not used on a page. This is useful for production environments where many components are registered globally but only a subset are used on each page. Set `config.suppress_unused_component_warnings = true` in your React on Rails initializer. Note: This only affects React on Rails Pro users. [PR 2125](https://github.com/shakacode/react_on_rails/pull/2125) by [justin808](https://github.com/justin808).
+- **Suppress Unused Component Warnings**: Added `suppress_unused_component_warnings` configuration option to disable console warnings about registered components that are not used on a page. This is useful for production environments where many components are registered globally but only a subset are used on each page. Set `config.suppress_unused_component_warnings = true` in your React on Rails initializer. Note: This only affects React on Rails Pro users. [PR 2136](https://github.com/shakacode/react_on_rails/pull/2136) by [justin808](https://github.com/justin808).
 
 - **Service Dependency Checking for bin/dev**: Added optional `.dev-services.yml` configuration to validate required external services (Redis, PostgreSQL, Elasticsearch, etc.) are running before `bin/dev` starts the development server. Provides clear error messages with start commands and install hints when services are missing. Zero impact if not configured - backwards compatible with all existing installations. [PR 2098](https://github.com/shakacode/react_on_rails/pull/2098) by [justin808](https://github.com/justin808).
 

react_on_rails/spec/react_on_rails/configuration_spec.rb

@@ -506,6 +506,27 @@ module ReactOnRails
       end
     end
 
+    describe ".suppress_unused_component_warnings" do
+      it "defaults to false" do
+        ReactOnRails.configure {} # rubocop:disable Lint/EmptyBlock
+        expect(ReactOnRails.configuration.suppress_unused_component_warnings).to be(false)
+      end
+
+      it "can be set to true" do
+        ReactOnRails.configure do |config|
+          config.suppress_unused_component_warnings = true
+        end
+        expect(ReactOnRails.configuration.suppress_unused_component_warnings).to be(true)
+      end
+
+      it "can be set to false explicitly" do
+        ReactOnRails.configure do |config|
+          config.suppress_unused_component_warnings = false
+        end
+        expect(ReactOnRails.configuration.suppress_unused_component_warnings).to be(false)
+      end
+    end
+
     describe "enforce_private_server_bundles validation" do
       context "when enforce_private_server_bundles is true" do
         before do