koel_http 1.0.0

HTTP/SSE transport for AG-UI agents — HttpAgent, SseParser, interceptors.

1.0.0

First stable release. The koel foundation (koel_core + koel_http + koel_lints) ships lock-step at 1.0.0, conformant to the AG-UI protocol release/2026-05-26 (commit d74e2dfc1e11bebdff419c2cbd347c811555411d).

• Protocol kernel (koel_core): the closed 28-type sealed AgUiEvent registry with the UnknownAgUiEvent forward-compat fallback, the sealed KoelError hierarchy, vendored RFC 6902 JSON Patch, the four-stage event pipeline (decode → verify → reduce → dispatch), the ChatState reducer, the interceptor chain, SessionStorage, and the KoelClient / ChatSession API.
• HTTP transport (koel_http): the framework-free SSE parser, HttpAgent native transport with cancellation propagation, chunk synthesis, connection-lifecycle hooks, and the interceptor suite (retry, auth, logging, event-trace, Sentry, PII redaction).
• Lint profile (koel_lints): the koel analysis ruleset built on the first-party analysis_server_plugin.
• Conformance: the AgUiEvent_equal structural-equality rule (byte-equal Uint8List) is finalized and pinned in koel_core/CONFORMANCE.md; the SC-1..SC-5 release gates (conformance, coverage, analyze, API stability, no vestigial code) are green.

0.0.1

• Initial scaffold.