Switch pub.layers.defs#span and pub.layers.defs#textPositionSelector from character offsets to UTF-8 byte offsets, aligning with ATProto conventions (Bluesky richtext facets use byteStart/byteEnd).

See the changelog for details and docs.layers.pub for full documentation.

Add pub.layers.changelog namespace for structured change tracking with sub-record targeting via objectRef, and add comprehensive AppView Plans documentation.

See the changelog for details and docs.layers.pub for full documentation.

Restructure all lexicons into directory-based NSIDs, add XRPC query lexicons, and simplify segmentation to tokenization-only.

See the changelog for details and docs.layers.pub for full documentation.

Add annotation project design metadata to pub.layers.corpus and per-layer source method to pub.layers.annotation.

See the changelog for details and docs.layers.pub for full documentation.

Add four orthogonal experiment dimensions to pub.layers.judgment.

See the changelog for details and docs.layers.pub for full documentation.

Initial draft of 13 ATProto lexicon schemas under the pub.layers.* namespace.

See the changelog for details and docs.layers.pub for full documentation.