Release version 1.2.0 - Add complete variable product support

This major feature release adds full support for WooCommerce variable products with variation-level pricing configuration.

## Key Features
- Each product variation can have independent tier and package pricing
- AJAX-based dynamic pricing table loading on variation selection
- Admin UI integrated into WooCommerce variation panels
- Full backward compatibility with existing simple product functionality
- WooCommerce Blocks compatibility maintained

## Implementation Highlights
- Effective ID pattern throughout codebase for variation handling
- Variation-specific meta boxes with field prefix support
- Template system updated to support both simple and variation products
- JavaScript enhancements for variation selector integration
- Cart logic updated to handle variation pricing correctly

## Files Changed
- Core: wc-tier-and-package-prices.php (version 1.2.0), composer.json
- Cart: includes/class-wc-tpp-cart.php (effective ID logic)
- Frontend: includes/class-wc-tpp-frontend.php (AJAX endpoint, variation detection)
- Admin: includes/class-wc-tpp-product-meta.php (variation hooks and methods)
- Templates: templates/admin/*.twig (field prefix support, table structure)
- JavaScript: assets/js/*.js (variation support)
- Documentation: CHANGELOG.md, README.md, CLAUDE.md

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

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

README.md

@@ -171,7 +171,7 @@ A: The price will automatically recalculate based on the new quantity.
 A: Yes, each product can have its own tier and package pricing configuration.
 
 **Q: Does this work with variable products?**
-A: Currently, this plugin is designed for simple products. Variable product support may be added in future versions.
+A: Yes! Since version 1.2.0, the plugin fully supports variable products. Each variation can have its own independent tier and package pricing configuration.
 
 ## Support
 
@@ -183,9 +183,22 @@ This plugin is licensed under the GPL v2 or later.
 
 ## Changelog
 
-### Version 1.1.20 - 2025-12-23
+### Version 1.2.0 - 2025-12-29
 
-**Current Release** - Latest stable version with full WooCommerce Blocks support
+__Current Release__ - Variable Product Support
+
+- __New__: Full support for WooCommerce variable products with variation-level pricing
+- __New__: Each variation can have independent tier and package pricing configuration
+- __New__: AJAX-powered dynamic pricing table display when variations are selected
+- __Changed__: Admin templates converted to table structure for better layout
+- __Fixed__: Quantity restrictions now work correctly per-variation
+- 100% backward compatible - no breaking changes
+
+See [CHANGELOG.md](CHANGELOG.md) for complete details.
+
+### Version 1.1.22 - 2025-12-23
+
+- Increased width of label input fields in admin interface
 
 #### Fixed
 - **CRITICAL:** WooCommerce Blocks fatal error in mini-cart and cart blocks