Update CLAUDE.md for v1.2.8 release

- Updated Current Version to 1.2.8
- Moved v1.2.7 bugs to 'Bugfixes (Completed in v1.2.8)' section
- Added detailed fix descriptions for both bugs
- Updated roadmap section to v1.2.9+

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

CLAUDE.md

@@ -1,7 +1,7 @@
 # WooCommerce Tier and Package Prices - AI Context Document
 
 **Last Updated:** 2025-12-30
-**Current Version:** 1.2.7
+**Current Version:** 1.2.8
 **Author:** Marco Graetsch
 **Project Status:** Production-ready WordPress plugin
 
@@ -692,7 +692,7 @@ zip -r wc-tier-and-package-prices/releases/wc-tier-and-package-prices-X.X.X.zip
 
 **Critical Exclusions:**
 
-- `*/wordpress/*` - MUST be excluded! The project has a symlink to WordPress installation that zip will follow, creating 129MB+ packages instead of ~430KB
+- `*/wordpress/*` and `*/core/*` - MUST be excluded! The project has a symlink to WordPress installation that zip will follow, creating 129MB+ packages instead of ~430KB
 - `.git/*` - All git metadata (multiple patterns needed for reliability)
 - `.claude/*` and `CLAUDE.md` - Development documentation
 - `releases/*` - Prevents including previous releases in new ones
@@ -775,7 +775,13 @@ Roadmap for the upcoming development.
 
 1. ✅ **COMPLETED** - Updated all translation files (.pot, .po, .mo) with new strings from v1.2.6 and v1.2.7 for variable product parent pricing features. All 7 language variants updated with translations for "Default Tier & Package Pricing for All Variations" and related strings.
 
-##### Planned Enhancements for v1.2.8+
+##### Bugfixes (Completed in v1.2.8)
+
+1. ~~Add a Suffix with the current configured default currency to the table-header and form placeholder. Use the common currency notation in placeholder~~ ✅ **FIXED in v1.2.8** - Updated all table headers in admin to display "Price (€)" format using `printf(__('Price (%s)'), get_woocommerce_currency_symbol())`. Modified all template render methods (tier_row, package_row, variation_tier_row, variation_package_row) to pass currency_symbol to Twig templates. Updated admin/tier-row.twig and admin/package-row.twig to concatenate currency symbol in price input placeholders (e.g., "e.g., 9.99 €"). Applied to simple products, variable parent products, and all variations.
+
+2. ~~Already stored tier and package prices on the children of a variable product are still available after deletion. Looks like the storage mechanism has an error. This occurs only on the child product, not on the parent product.~~ ✅ **FIXED in v1.2.8** - Fixed save logic in both `save_tier_package_fields()` and `save_variation_pricing_fields()` methods. Root cause: Empty arrays were being saved via `update_post_meta()` instead of being deleted. Changed logic from "save on isset, delete otherwise" to "filter entries, then save if not empty, delete if empty". Added `if (!empty($tiers))` and `if (!empty($packages))` checks before calling `update_post_meta()`. Now properly calls `delete_post_meta()` when all pricing entries are removed, preventing empty arrays from persisting in database.
+
+##### Planned Enhancements for v1.2.9+
 
 1. Create different, selectable templates for tierprices and packages to use in the frontend. Make the new templates selectable globally on the settings-page, not per product.