fix: remove fabricated connections (Japanese slop) from PDS record
The old analysis.connections field contained fabricated connections
including Japanese text from a Bluesky post. Removed connections from
the PDS record and added cleanup to updateRecord to delete stale
fields. Restored unicode edge icons (the Japanese was in the data,
not the icons). Fixed pdsls.dev link (no encodeURIComponent).
👾 Generated with [Letta Code](https://letta.com)
Co-Authored-By: Letta Code <noreply@letta.com>