Update CLAUDE.md with v0.11.0 session history

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -1128,3 +1128,109 @@ Admin features always work; frontend requires valid license.
 - v0.10.1: Committed `3f5adfb` - Configurable rate limiting with settings subtabs
 - Tags: `v0.10.0`, `v0.10.1`
 - Pushed to origin: dev, main, both tags
+
+### 2026-02-03 - Version 0.11.0 (WooCommerce Integration)
+
+**Completed:**
+
+- Created `src/Integration/WooCommerce/Manager.php` (~435 lines)
+  - Core integration manager with option constants
+  - HPOS (High-Performance Order Storage) compatibility declaration
+  - `is_wc_active()`, `is_enabled()` checks
+  - `map_wc_status_to_booking()` for status synchronization
+  - `get_order_for_booking()`, `get_booking_for_order()` bidirectional lookups
+  - `link_booking_to_order()` for creating relationships
+- Created `src/Integration/WooCommerce/ProductSync.php` (~515 lines)
+  - Virtual WooCommerce products for rooms (SKU: `bnb-room-{id}`)
+  - Auto-sync on `save_post_bnb_room` hook
+  - Product deletion on room deletion
+  - `sync_all_rooms()` for bulk synchronization
+  - Bidirectional meta linking (room ↔ product)
+- Created `src/Integration/WooCommerce/CartHandler.php` (~545 lines)
+  - Cart item data structure with booking details
+  - Availability validation on add-to-cart
+  - Dynamic price calculation using `Calculator` class
+  - Cart item display with dates, guests, nights
+  - Services support in cart items
+- Created `src/Integration/WooCommerce/CheckoutHandler.php` (~347 lines)
+  - Special requests textarea field
+  - Arrival time dropdown field
+  - Guest data pre-fill from user profile
+  - Final availability validation before payment
+  - Booking summary display
+- Created `src/Integration/WooCommerce/OrderHandler.php` (~584 lines)
+  - Booking creation on `woocommerce_payment_complete`
+  - Guest record creation from billing info
+  - Booking reference generation (BNB-YYYY-NNNNN)
+  - Status synchronization on order status changes
+  - Order-booking bidirectional linking
+- Created `src/Integration/WooCommerce/InvoiceGenerator.php` (~633 lines)
+  - PDF generation using existing mPDF dependency
+  - Configurable invoice numbering (prefix + start number)
+  - Auto-attach to WooCommerce order emails
+  - Secure storage in `wp-content/uploads/wp-bnb-invoices/`
+  - .htaccess protection for invoice directory
+- Created `src/Integration/WooCommerce/RefundHandler.php` (~394 lines)
+  - Full refund triggers booking cancellation
+  - Partial refund records amount without cancellation
+  - Refund meta storage on booking
+  - `wp_bnb_wc_should_cancel_on_refund` filter for customization
+- Created `src/Integration/WooCommerce/AdminColumns.php` (~282 lines)
+  - "WC Order" column in bookings list
+  - "Booking" column in WC orders list (supports HPOS)
+  - Row actions for cross-navigation
+- Created `assets/css/wc-integration.css` (~443 lines)
+  - Cart booking display styles
+  - Checkout summary styles
+  - Booking form styles
+  - Status badge colors
+- Created `assets/js/wc-integration.js` (~358 lines)
+  - `BookingForm` class for frontend forms
+  - AJAX sync rooms handler
+  - AJAX generate invoice handler
+  - Availability checking with debounce
+- Updated `src/Plugin.php`
+  - WooCommerce initialization when WC is active
+  - WooCommerce settings tab with 4 subtabs (General, Products, Orders, Invoices)
+  - Asset enqueuing for WooCommerce integration
+
+**Files Created:**
+
+- `src/Integration/WooCommerce/Manager.php`
+- `src/Integration/WooCommerce/ProductSync.php`
+- `src/Integration/WooCommerce/CartHandler.php`
+- `src/Integration/WooCommerce/CheckoutHandler.php`
+- `src/Integration/WooCommerce/OrderHandler.php`
+- `src/Integration/WooCommerce/InvoiceGenerator.php`
+- `src/Integration/WooCommerce/RefundHandler.php`
+- `src/Integration/WooCommerce/AdminColumns.php`
+- `assets/css/wc-integration.css`
+- `assets/js/wc-integration.js`
+
+**Files Changed:**
+
+- `src/Plugin.php` - WooCommerce initialization and settings tab
+- `assets/css/admin.css` - Status badge colors for booking statuses
+- `wp-bnb.php` - Version bump to 0.11.0
+- `CHANGELOG.md` - Added v0.11.0 release notes
+- `PLAN.md` - Marked Phase 11 as complete
+
+**Learnings:**
+
+- WooCommerce HPOS compatibility requires `FeaturesUtil::declare_compatibility()` in `before_woocommerce_init` hook
+- Use `$order->get_meta()` / `$order->update_meta_data()` instead of `get_post_meta()` for HPOS compatibility
+- Virtual products (`virtual => true`, `downloadable => false`) don't require shipping
+- Cart item data stored via `woocommerce_add_cart_item_data` filter persists through session
+- Dynamic pricing via `woocommerce_before_calculate_totals` hook with priority 20
+- `woocommerce_payment_complete` fires after successful payment, ideal for booking creation
+- Invoice attachment via `woocommerce_email_attachments` filter with order and email type detection
+- Refund detection: `woocommerce_refund_created` for partial, `woocommerce_order_fully_refunded` for full
+- Status badge CSS must be in admin.css for settings page (wc-integration.css is frontend only)
+- HPOS orders list uses `manage_woocommerce_page_wc-orders_columns` filter (different from legacy)
+
+**Released:**
+
+- Committed: `2865956` on dev branch
+- Merged to main (fast-forward)
+- Tagged: `v0.11.0`
+- Pushed to origin: dev, main, v0.11.0