👥 [FEATURE] Real-Time Collaborative Editing

[SH20RAJ]

Description

Implement real-time collaborative editing for documents and canvases:

• Multiple users editing simultaneously
• Live cursor positions
• Presence indicators
• Operational transformation for conflict resolution
• Change history and versioning

Features

• Real-time synchronization
• Live user cursors with names
• Active users panel
• Typing indicators
• Change notifications
• Undo/redo for collaborative edits
• Offline mode with sync on reconnect

Acceptance Criteria

• Set up WebSocket server (or use service)
• Implement operational transformation or CRDT
• Add presence system (active users)
• Show live cursors
• Implement conflict resolution
• Add change history
• Sync offline changes
• Handle user disconnection
• Implement rate limiting
• Add activity log

Technology Options

• Yjs (CRDT library)
• Socket.io (WebSocket)
• Pusher (real-time service)
• Firebase Realtime DB

Suggested: Yjs + WebSocket

const ydoc = new Y.Doc();
const ytext = ydoc.getText();
const awareness = provider.awareness;

Type

Feature - Major

Priority

High - Core feature for collaboration