Release version 1.1.9 - Critical function redeclaration fix

Fixed critical function redeclaration error affecting versions 1.1.3-1.1.8
that caused fatal errors during plugin activation and deactivation.

Fixes:
- Function redeclaration error for wc_tpp_woocommerce_missing_notice()
- Fatal error "Cannot redeclare function" when plugin file loaded multiple times
- Plugin activation/deactivation failures

Technical Changes:
- Wrapped wc_tpp_woocommerce_missing_notice() in function_exists() check
- Moved function declaration before WooCommerce check for better organization
- Prevents fatal errors during WordPress plugin lifecycle events

Updated Files:
- wc-tier-and-package-prices.php (version 1.1.9, function safety check)
- composer.json (version 1.1.9)
- CHANGELOG.md (v1.1.9 section)
- All translation files compiled (.mo files)

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

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

CHANGELOG.md

@@ -5,6 +5,21 @@ All notable changes to WooCommerce Tier and Package Prices will be documented in
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.1.9] - 2025-12-22
+
+### Fixed
+
+- **CRITICAL:** Function redeclaration error for `wc_tpp_woocommerce_missing_notice()` affecting versions 1.1.3-1.1.8
+- Fatal error "Cannot redeclare function wc_tpp_woocommerce_missing_notice()" when plugin file loaded multiple times
+- Plugin activation and deactivation failures caused by function redeclaration
+
+### Technical Details
+
+- Wrapped `wc_tpp_woocommerce_missing_notice()` function in `function_exists()` check
+- Prevents fatal error during WordPress plugin activation/deactivation cycles
+- Ensures function can safely be declared even if file is included multiple times
+- Moved function declaration before WooCommerce check for better code organization
+
 ## [1.1.8] - 2025-12-22
 
 ### Fixed