fix: disable lexicon validation for Tangled-specific record types
Set validate=false for all Tangled custom collections (sh.tangled.*)
when creating records via com.atproto.repo.createRecord. PDSs don't
have the Tangled lexicon schemas, so validation would fail with
"Lexicon not found" errors.
Fixes issue creation, PR creation, comments, stars, and issue state changes.
💘 Generated with Crush
Assisted-by: Claude Sonnet 4.5 via Crush <crush@charm.land>