Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

/v1 REST surface backed by shared labeling_ir structs with new Ecto schemas (Queue, Schema, Sample, Assignment, Label, Dataset), tenant-scoped migrations, and assignment retrieval using stored samples.
Anvil.API.Router and Anvil.API.State wired through Plug.Cowboy to expose CRUD operations with tenant isolation enforced via X-Tenant-ID and actor context.

Label submission tolerates unknown fields in payloads to prevent component forks per ADR-002.
Test environment uses Supertester full isolation with sandbox mode enabled for migration setup.

Initial release
Anvil.Schema for label schema definition with 8 field types
Anvil.Schema.Field - field type definitions (text, select, multiselect, range, number, boolean, date, datetime)
Anvil.Queue GenServer for queue management
Anvil.Queue.Policy - assignment policies (round_robin, random, expertise)
Anvil.Assignment struct with lifecycle states
Anvil.Label struct with validation
Anvil.Agreement module for inter-rater reliability metrics
Anvil.Agreement.Cohen - Cohen's kappa for 2 raters
Anvil.Agreement.Fleiss - Fleiss' kappa for n raters
Anvil.Agreement.Krippendorff - Krippendorff's alpha
Anvil.Export module with CSV and JSONL formatters
Anvil.Storage behaviour with ETS implementation
Comprehensive test suite using Supertester