Multi-user inline comments / annotations

[tacheraSasi]

Feature: Multi-user Inline Comments / Annotations

Lightweight annotation layer where reviewers can leave inline comments.

Details

• Allow users to select text and add a comment (like Google Docs)
• Store comments as JSON sidecar files (e.g., file.md.comments.json)
• Display comment indicators in the margin
• Show comment thread on click
• Support comment resolution (mark as resolved)
• Optional: require a username/nickname on first visit
• Comments persist across reloads via the sidecar files
• API endpoints: POST /api/comments, GET /api/comments/:file, DELETE /api/comments/:id

Why

Enables lightweight document review workflows without needing external tools. Great for team documentation.