Release v0.5-2

[sarsolot]

Release v0.5-2

New Features

• 🕐 Clock mode with --clock/-k option (displays current system time)
• ⏱️ Optional milliseconds display for clock mode with --milliseconds/-m
• 🔧 Bash autocompletion support for all commands and options

Bug Fixes

• 🐛 Fix GLib source removal error by initializing timer_print_source_id (Initialize timer_print_source_id to resolve test failures and re-enable test suite #12)
• 📦 Fix EXTRA_DIST to reference README.md instead of README

Improvements

• ✅ Re-enable and fix all test suite tests (5+ tests passing)
• 🚀 Add GitHub Actions CI workflow with automated testing
• 📝 Add release.sh script for creating distribution tarballs
• 🏗️ Convert to minimal source approach for cleaner distribution
• 🧪 Add comprehensive CLI tests for clock mode functionality

Debian Packaging Updates

• Update package description to include clock mode and autocompletion
• Remove unnecessary /usr/sbin directory
• Clean up build artifacts from version control