**Implementation Plan Created: IMPLEMENTATION_PLAN_META_COMPAT.md**
Following all documentation guidelines:
- ADDON_BRIDGE_PATTERN.md (3-level strategy)
- ADDON_DEVELOPMENT_GUIDE.md (hook system)
- ADDON_REACT_INTEGRATION.md (React exposure)
- METABOX_COMPAT.md (compatibility requirements)
**Key Principles:**
1. ✅ Zero addon dependencies in core
2. ✅ Listen to WP/WooCommerce hooks (NOT WooNooW-specific)
3. ✅ Community does NOTHING extra
4. ❌ Do NOT support specific plugins
5. ❌ Do NOT integrate plugins into core
**3 Phases:**
Phase 1: Backend API Enhancement (2-3 days)
- Add get_order_meta_data() / get_product_meta_data()
- Add update_order_meta_data() / update_product_meta_data()
- Expose meta in API responses
- Add filters: woonoow/order_allowed_private_meta
- Add filters: woonoow/order_updatable_meta
- Add filters: woonoow/order_api_data
- Add actions: woonoow/order_updated
Phase 2: Frontend Components (3-4 days)
- Create MetaFields.tsx component (generic field renderer)
- Create useMetaFields.ts hook (registry access)
- Update Orders/Edit.tsx to include meta fields
- Update Products/Edit.tsx to include meta fields
- Support all field types: text, textarea, number, select, checkbox
Phase 3: PHP Registry System (2-3 days)
- Create MetaFieldsRegistry.php
- Add action: woonoow/register_meta_fields
- Auto-register fields to allowed meta lists
- Localize to JavaScript (window.WooNooWMetaFields)
- Initialize in Plugin.php
**Testing Plan:**
- WooCommerce Shipment Tracking plugin
- Advanced Custom Fields (ACF)
- Custom metabox plugins
- Meta data save/update
- Field registration
**Timeline:** 8-12 days (1.5-2 weeks)
**Success Criteria:**
✅ Plugins using standard WP/WooCommerce meta work automatically
✅ No special integration needed
✅ Meta fields visible and editable
✅ Zero coupling with specific plugins
✅ Community does NOTHING extra
Ready to start implementation!
