3.9.1

Fixed

• WP Crowdfunding compatibility — Updated module detection from wpneo_crowdfunding_init() function to WPCF_VERSION constant, meta keys from _wpneo_* to _nf_* prefix, and version constant from STARTER_VERSION to WPCF_VERSION, matching WP Crowdfunding 2.x API surface
• Unescaped admin outputs — Fixed 4 unescaped outputs in admin views (tab-health.php, tab-modules.php, partial-checklist.php)
• PHPDoc non-generic arrays — Fixed 5 @return array → @return array<string, mixed> in EDD/WC handler methods

Changed

• Marketplace base classes — Extracted shared logic from Dokan, WCFM, and WC Vendors into Marketplace_Module_Base and Marketplace_Handler_Base, eliminating ~477 lines of duplicated code across 6 module/handler files
• LMS handler template method — Added load_course() template method to LMS_Handler_Base with 3 abstract hooks (get_course_post_type(), get_course_price(), get_lms_label()), eliminating identical implementations from 5 LMS handlers (~80 lines)
• LMS module shared enrollment — Moved identical load_enrollment_data() from 5 LMS modules into LMS_Module_Base via get_lms_handler() abstract (~35 lines)
• Test stub consolidation — Consolidated 14 single-constant stub files into constants-only.php and removed 4 empty stubs, reducing bootstrap.php requires from 68 to 50
• PHPDoc generics — Added array<string, mixed> return types to 11 methods in Module_Base and Settings_Repository
• Events handler base class — Extracted shared format_event(), parse_event_from_odoo(), and format_attendance() from 3 event handlers into Events_Handler_Base abstract base
• Booking handler base extended — Jet_Booking_Handler and Jet_Appointments_Handler now extend Booking_Handler_Base (previously standalone), bringing handler base coverage to 5 booking handlers
• Events test base — New EventsModuleTestBase abstract test base for 3 event module tests (18 shared tests)
• Booking test base — New BookingModuleTestBase abstract test base for 6 booking module tests (16 shared tests)
• WC handler cleanup — Removed unused $client_fn property from WC_Shipping_Handler and WC_Inventory_Handler