- Create main singleton class
- Create activator with version checks
- Create deactivator with rewrite flush
- Update main file to include core classes
This is a blocking fix (Rule 3) - Plan 01-01 was not completed but
these files are required for Plan 01-02 to execute.
- Add main singleton class DDHH_JM_Job_Manager
- Implement activation handler with WP/PHP version checks
- Implement deactivation handler with rewrite flush
- Use transient-based rewrite flush to avoid multiple flushes
- Add comprehensive security checks and documentation
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>