Make NIP-29 relay management more dynamic #nip29

[rabble]

Problem

The EnhancedNostrProvider currently uses a hardcoded list of NIP-29 relays. This limits flexibility and makes it harder for users to interact with groups on different relays.

Current Implementation

• Hardcoded default NIP-29 relay list
• Pre-connects to all relays on startup (potential performance impact)
• Users cannot specify custom relays for specific groups

Proposed Improvements

• Dynamic relay discovery from group identifiers
• User-configurable relay preferences
• On-demand connection strategy (connect when needed)
• Relay health monitoring and fallbacks
• Better relay selection for group interactions

Benefits

• More flexible relay management
• Better performance (no pre-connecting to unused relays)
• Support for custom/private group relays
• User control over relay preferences

Implementation Ideas

• Parse relay info from naddr identifiers
• Add relay management UI
• Implement relay connection pooling
• Add relay performance metrics

Files Affected

• src/components/EnhancedNostrProvider.tsx
• Potentially new relay management components

Tags: #nip29