v0.6.1

Added

• LoggerPlugin verbose tracing — header_count field on request and response log events when verbose mode is enabled.

Fixed

• Path params — substitute placeholders per /-segment so names that are prefixes of another (e.g. :user vs :user_id) no longer corrupt later segments.
• Retry-After — honor server delays exactly (jitter no longer shortens them); parse HTTP-date values (RFC 7231) in addition to delay-seconds; past dates retry immediately.
• SSE — normalize LF, CR, and CRLF line endings (including CRLF split across chunks); strip only one optional space after field colons per the SSE spec.
• OpenAPI export (feature openapi) — Option<T> fields emit OpenAPI 3.0 nullable: true instead of draft-07 "null" typing.
• schema-validate builds — PreparedExecution::route_path is compiled only when the feature is enabled.

Changed

• SchemaRegistry — O(1) route lookups via an internal index (first registration still wins on duplicates).
• request_pipeline — move headers and URL into retry stub responses instead of cloning.