v1.0.0

Added

• create_xcstrings tool - create a new empty .xcstrings file with a given source language
• add_keys tool - add new localization keys with source text to an .xcstrings file
• discover_files tool - recursively search a directory for .xcstrings files
• update_comments tool - update developer comments on existing localization keys
• extract_strings prompt - guided workflow to extract hardcoded strings from Swift code
• Multi-locale get_untranslated - locales parameter to find strings untranslated in any of multiple locales
• FileAlreadyExists error variant for create_xcstrings safety
• Service layer creator module with pure functions for file creation, key addition, and comment updates