Release version 1.1.22 - UI improvements and bug documentation

- Increased width of label input fields in admin (short → regular)
- Documented double-install bug workaround in CHANGELOG
- Updated version to 1.1.22 across all files
- Created release package with proper exclusions

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

CHANGELOG.md

@@ -5,6 +5,27 @@ 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).
 
+## [1.1.22] - 2025-12-23
+
+### Changed
+
+- Increased width of label input fields for tier pricing and package pricing in admin interface
+- Changed label field CSS class from `short` to `regular` (approximately 2x wider)
+
+### Technical Details
+
+- Updated `templates/admin/tier-row.twig` - Changed label input class from `short` to `regular`
+- Updated `templates/admin/package-row.twig` - Changed label input class from `short` to `regular`
+- Provides more space for descriptive labels like "Wholesale", "Bulk Discount", "Starter Pack", etc.
+- Uses WooCommerce standard input field sizing classes
+
+### Known Issues
+
+- **Double-install bug**: When manually updating the plugin by uploading a new version, WordPress may install it as a separate plugin instead of updating the existing one
+  - **Workaround**: Before installing a new version, deactivate and delete the old version first, then install the new version
+  - **Root cause**: Plugin lacks automatic update mechanism; requires manual installation
+  - **Future fix**: Consider implementing update server or WordPress.org repository integration
+
 ## [1.1.21] - 2025-12-23
 
 ### Added