Plan 02: Remove warning_threshold from HealthSettings

Goal

Remove the warning_threshold configuration setting since the simplified 4-status model only uses healthy_threshold and auto_pause_threshold as boundary points.

Tasks

Task 1: Remove warning_threshold from HealthSettings

Files: lib/source_monitor/configuration/health_settings.rb

• Remove warning_threshold from the attr_accessor list
• Remove @warning_threshold = 0.5 from reset!

Task 2: Remove warning_threshold from configuration test

Files: test/lib/source_monitor/configuration_test.rb

Search for any test that references warning_threshold in the configuration test and remove or update it. This setting is being removed entirely.

Task 3: Check initializer template for warning_threshold reference

Files: lib/source_monitor/setup/install_generator.rb or related template files

Search for warning_threshold in the install generator templates and remove any reference. Also check examples/ and docs/ for references.