v1.0.0

What's Changed

• Add content navigation sidebar to plan view by @HamptonMakes in #60
• Fix broken RSpec tests: markdown raw HTML rendering and empty content plan test by @HamptonMakes in #62
• Replace deprecated :unprocessable_entity with :unprocessable_content by @HamptonMakes in #63
• Add agent badge and improve agent author display for comments by @HamptonMakes in #64
• Add Escape key to dismiss comment form and selection popover by @HamptonMakes in #61
• Add Open Graph meta tags for plan link previews by @HamptonMakes in #66
• Fix comment thread highlighting for formatted markdown and table selections by @HamptonMakes in #67
• Add real-time plan presence tracking with ActionCable by @HamptonMakes in #65
• Fix code block extraction, overlapping highlights, and multi-cell click handlers by @HamptonMakes in #68

Full Changelog: v0.4.0...v1.0.0