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CHANGELOG.md 

# Changelog

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

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [0.1.0] - 2026-07-10

### Added

- Initial release of AshDyan.
- `dyan` DSL extension for declaring analyzable fields on Ash resources.
- Domain-level `dyan` registry via `AshDyan.Domain`.
- Runtime analysis engine (`AshDyan.run/1,2`) supporting:
  - frequency / group-by counts
  - numeric aggregates (sum, avg, min, max, count, count_distinct, stddev, variance, median)
  - time bucketing
  - percentiles
  - histograms
- In-memory aggregation bounded by `max_limit`, `max_group_by`, and `query_timeout`.
- Capability check API (`AshDyan.supports?/2`) for data-layer limits.
- Structured errors via `AshDyan.Error` with stable `reason` atoms.
- Chart adapter (`AshDyan.Charts.to_chartjs/1`).
- Reference adapters: `AshDyan.Adapters.PhoenixController`, `AshDyan.Adapters.PhoenixChannel`, `AshDyan.Adapters.GenApiBridge`.
- Documentation guides (`guides/usage.md`, `guides/design.md`).