What Changed

• Added new environment variable GO_BROADCAST_AI_FAIL_ON_ERROR with a default value of false to .github/.env.base
• Added comprehensive comment documentation explaining the error handling behavior: when true, AI failures cause sync to fail with an error showing which API key env var was used; when false (default), AI failures silently fall back to static templates
• Positioned the new configuration under the existing AI retry settings (GO_BROADCAST_AI_RETRY_INITIAL_DELAY and GO_BROADCAST_AI_RETRY_MAX_DELAY)

Why It Was Necessary

• Provides operators with control over how AI broadcast failures are handled, allowing them to choose between strict error reporting or graceful degradation
• Enables debugging of AI integration issues by optionally surfacing which API key environment variable was being used when failures occur
• Maintains backward compatibility by defaulting to silent fallback behavior while allowing opt-in to stricter error handling

Testing Performed

• Verify the environment variable is correctly loaded in the application configuration
• Test that when set to true, AI failures properly surface errors with API key environment variable information
• Test that when set to false or unset, AI failures gracefully fall back to static templates without raising errors

Impact / Risk

• Breaking Change: None - new optional configuration with safe default behavior
• Risk: Low - defaults to existing fallback behavior, only affects error handling when explicitly enabled
• Developer Experience: Improves debugging capabilities for AI integration issues when operators opt-in to strict error mode