Fix packs_generator_spec tests for verbose mode changes

The verbose flag changes made pack generation output conditional on the
REACT_ON_RAILS_VERBOSE environment variable. Updated the two failing
tests to set this environment variable so they can verify the expected
output is produced when packs are actually generated.

Tests fixed:
- "generate packs if a new component is added"
- "generate packs if an old component is updated"

Both tests now:
1. Set ENV["REACT_ON_RAILS_VERBOSE"] = "true" before generation
2. Run the pack generation
3. Clean up the environment variable

This ensures backward compatibility with existing tests while
supporting the new verbose mode functionality.

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

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

Author: justin808

spec/dummy/spec/packs_generator_spec.rb

@@ -413,19 +413,25 @@ def self.rsc_support_enabled?
       it "generate packs if a new component is added" do
         create_new_component("NewComponent")
 
+        # Set verbose mode to see pack generation output
+        ENV["REACT_ON_RAILS_VERBOSE"] = "true"
         expect do
           described_class.instance.generate_packs_if_stale
         end.to output(GENERATED_PACKS_CONSOLE_OUTPUT_REGEX).to_stdout
+        ENV.delete("REACT_ON_RAILS_VERBOSE")
         FileUtils.rm "#{packer_source_path}/components/ComponentWithCommonOnly/ror_components/NewComponent.jsx"
       end
 
       it "generate packs if an old component is updated" do
         FileUtils.rm component_pack
         create_new_component(component_name)
 
+        # Set verbose mode to see pack generation output
+        ENV["REACT_ON_RAILS_VERBOSE"] = "true"
         expect do
           described_class.instance.generate_packs_if_stale
         end.to output(GENERATED_PACKS_CONSOLE_OUTPUT_REGEX).to_stdout
+        ENV.delete("REACT_ON_RAILS_VERBOSE")
       end
 
       def create_new_component(name)