Modernize CA Quick View: Fix security vulnerabilities, add Bengali dev docs, enhance UX

.gitignore

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+# WordPress
+.DS_Store
+Thumbs.db
+
+# IDEs and editors
+/.idea
+/.vscode
+*.sublime-project
+*.sublime-workspace
+*.swp
+*.swo
+*~
+
+# Composer
+/vendor/
+composer.lock
+
+# npm
+node_modules/
+package-lock.json
+
+# Build files
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# OS files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Temporary files
+*.tmp
+*.bak
+*.cache
+
+# PHPStorm
+.idea/
+
+# VS Code
+.vscode/
+
+# Sass
+.sass-cache/
+*.css.map
+*.sass.map
+*.scss.map

CHANGELOG.md

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+# Changelog
+
+All notable changes to the CA WooCommerce Quick View plugin will be documented in this file.
+
+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).
+
+## [1.2.0] - 2024-11-03
+
+### Added
+- Nonce verification for all AJAX requests for enhanced security
+- ESC key support to close Quick View modal
+- Click outside modal to close functionality
+- Comprehensive README.md (English) for end users
+- Detailed README-DEVELOPER.md (Bengali/বাংলা) for developers
+- CHANGELOG.md file for tracking version history
+- .gitignore file for better repository management
+- ARIA labels for improved accessibility
+- Button hover effects and smooth transitions
+- Focus states for better keyboard navigation
+- Disabled state styling for buttons
+- Tablet responsive breakpoint (601px-1024px)
+- Enhanced admin settings page with helpful links
+- Documentation links in admin panel
+- Support links in admin panel
+
+### Changed
+- Modernized JavaScript code with ES6+ syntax
+- Improved error handling in AJAX callbacks
+- Enhanced PHP code with better type checking
+- Better input sanitization across the codebase
+- Improved output escaping for security
+- Updated readme.txt with detailed changelog and FAQ
+- Enhanced mobile responsive design
+- Better loader background opacity
+- Improved code documentation and inline comments
+- Updated version constant from 1.0 to 1.2
+
+### Fixed
+- Typo in default button label: 'Qiuck View' → 'Quick View'
+- Missing activation date storage in plugin activator
+- Version mismatch between plugin header and class constant
+- Redundant wp_die() call after wp_send_json_error()
+- Missing product existence validation
+- Improper escaping in some template files
+- Unused $loop variable in gallery function
+
+### Security
+- Added nonce verification to `cawqv_get_product_callback()`
+- Added nonce verification to `cawqv_woocommerce_ajax_add_to_cart()`
+- Localized nonce in JavaScript for add-to-cart functionality
+- Improved input validation and sanitization
+- Enhanced output escaping throughout templates
+- Better capability checks for admin functions
+
+### Removed
+- Unused global $woocommerce variable in gallery function
+- Redundant wp_die() calls after wp_send_json functions
+
+## [1.1.0] - 2022-04-16
+
+### Fixed
+- Minor bug fixes
+- Compatibility improvements
+
+### Changed
+- Updated WooCommerce compatibility
+
+## [1.0.0] - Initial Release
+
+### Added
+- Initial plugin release
+- Quick View modal functionality
+- AJAX add to cart
+- Product gallery with Swiper slider
+- Live customization through WordPress Customizer
+- Multiple animation options
+- Color customization
+- Responsive design
+- WooCommerce integration
+
+---
+
+## Upgrade Guide
+
+### Upgrading to 1.2.0
+
+This version includes important security improvements and bug fixes. No breaking changes are introduced.
+
+**Steps:**
+1. Backup your site
+2. Update the plugin through WordPress admin or manually
+3. No additional configuration needed - all settings are preserved
+
+**Notes:**
+- All existing customizations will continue to work
+- The default button label will be corrected to 'Quick View'
+- New features (ESC key, click outside) are automatically enabled
+
+### Future Versions
+
+We're planning these features for upcoming releases:
+- Additional animation effects
+- More customization options
+- Page builder integration
+- Social sharing in quick view
+- Product comparison feature
+- Recently viewed products
+
+---
+
+## Support
+
+For questions, issues, or feature requests:
+- [GitHub Issues](https://github.com/codersaiful/ca-quick-view/issues)
+- [WordPress Support Forum](https://wordpress.org/support/plugin/ca-woocommerce-quick-view/)
+- Email: codersaiful@gmail.com
+
+## Contributing
+
+Contributions are welcome! Please see our contributing guidelines in README-DEVELOPER.md (বাংলা).
+
+## License
+
+This project is licensed under GPL-2.0+ - see LICENSE.txt for details.