refactor(framework): extract correlation into dedicated package#15
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Move correlation ID middleware and slog handler from framework/middleware/ into framework/correlation/ for consistency with the session package pattern. Features that have middleware plus companion components get their own sub-package. Renames: - CorrelationID() -> correlation.Middleware() - CorrelationIDWith() -> correlation.MiddlewareWith() - CorrelationIDOptions -> correlation.Options - CorrelationIDGenerator -> correlation.Generator - CorrelationIDHandler() -> correlation.Handler() - CorrelationIDFrom() -> correlation.From() - DefaultCorrelationIDHeader -> correlation.DefaultHeader
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Summary
framework/middleware/into a dedicatedframework/correlation/packageframework/session/— features with middleware + companion components get their own sub-packageCorrelationIDprefix from all exported symbols since the package name provides contextRenames
middleware.)correlation.)CorrelationID()Middleware()CorrelationIDWith(opts)MiddlewareWith(opts)CorrelationIDOptionsOptionsCorrelationIDGeneratorGeneratorCorrelationIDHandler(next)Handler(next)CorrelationIDFrom(r)From(r)DefaultCorrelationIDHeaderDefaultHeaderRationale
The slog handler is not HTTP middleware — it's a
slog.Handlerdecorator. Placing it in themiddlewarepackage was misleading. Extracting intoframework/correlation/groups related components cohesively and is consistent with how sessions are organized.