Add island/connection CLI commands for graph analysis
- island:discover: BFS to find connected components in global network.cosmik.connection graph, caches in SQLite
- island:detect: match our carry graph against discovered components to find closest island
- island:explore: find fringe nodes and suggest bridge edges back into island
- connection:detect: compare our carry graph against individual DIDs' connection records
- vault:analyze: parse Obsidian vault notes into carry data via letta-code-sdk agent
Dependencies: @atproto/api, @letta-ai/letta-code-sdk, jsdom
👾 Generated with [Letta Code](https://letta.com)
Co-Authored-By: Letta Code <noreply@letta.com>