Release v0.4.0

[0.4.0] - 2026-01-19

Features

• limiter: Expose audit API and principal tracking (#153) (f1359ca)
• limiter: Expose usage snapshot data through RateLimiter API (#188) (9b8fc2f)
• aggregator: Archive expired audit events to S3 (#77) (#192) (ad9ce0f)
• infra: Add AWS X-Ray tracing support for Lambda aggregator (#196) (e6f05f2)
• cli,limiter: Add list command to discover deployed rate limiters (#198) (a1e5b22)
• cli: Add ASCII plot visualization for usage snapshots (#201) (deb04b3)

Bug Fixes

• aggregator: Use flat schema for snapshots to fix overlapping paths error (#172) (f745698)
• test,aggregator: Fix flaky snapshot test and aggregator delta tracking (#169) (d824f32)

Documentation

• Add milestone assignment guidance (#186) (9ee595c)

Miscellaneous Tasks

• Update .claude submodule (#183) (26c111f)
• Update .claude submodule (#184) (c31a673)
• Add milestone skill and VSCode workspace (#193) (0b81581)
• Add release-prep skill and expand CLI permissions (#202) (80aaea1)