- Frontend app.ts refactored
- island-explore: minor updates
- island-shared: expanded with more utilities
- Worker: additional endpoints and improvements
- Add island-cleanup command
- Update lex.config.js and package.json

👾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta Code <noreply@letta.com>

When the ID is a 12-char hex string (centroid hash), scan strata
records to find the one whose centroid hashes to that ID. This lets
/island/92fd7f2c74ab work instead of requiring the record rkey.

👾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta Code <noreply@letta.com>

Persona and tool description both specify 3-5 sentences max.

👾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta Code <noreply@letta.com>

Edges in org.latha.island now contain just the uri field — pointing
to the network.cosmik.connection record rather than restating its
data. The connection record is the source of truth.

- Lexicon: edge type reduced to just uri (required, at-uri format)
- island:publish: connections are {uri: atUri} only
- Analysis new connections excluded (no AT URI to reference)
- Dry-run display shows just URIs

👾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta Code <noreply@letta.com>

When an island ID is not found, suggest similar IDs or tell user
to list available islands.

👾 Generated with [Letta Code](https://letta.com)

Co-Authored-By: Letta Code <noreply@letta.com>