DID Collaboration Handshake

[ProjectLiminality]

Description

Implement bidirectional collaboration handshake when users share/clone DreamNodes via Radicle.

Core Requirements

• Obsidian URIs contain sender's Radicle DID
• Clicking URI creates Dreamer node for sender (with human-readable name)
• Cloned DreamNode automatically attached to sender's Dreamer node
• Automatic following of sender's Radicle DID for updates
• Bidirectional following mechanism (sender also follows receiver)

User Experience Scenarios

Individual Link:

• Click link → Create Alice Dreamer node → Clone DreamNode → Attach to Alice → Highlight cloned node with Alice visible in liminal web

Batch Link:

• Click batch link → Create Alice Dreamer node → Clone all DreamNodes → Attach all to Alice → Highlight Alice with all cloned nodes around her

Open Questions

• DID encoding in URI: Direct vs Radicle resolution for human-readable name?
• Bidirectional following: How does sender receive receiver's DID after they create it post-call?

Parent Issue

Part of Epic #258 - Coherence Beacon System

Definition of Done

• URI format includes sender DID information
• Dreamer node auto-creation with human-readable title
• DreamNodes properly attached to sender Dreamer node
• Automatic following of sender's Radicle DID
• Bidirectional following mechanism implemented
• Both individual and batch link flows working
• Tested across two machines with real Radicle DIDs