gklog

Structured logging helpers around log/slog: tee handlers, optional JSON file rotation, optional email alerts, build metadata.

Context scoped loggers

Store a request scoped *slog.Logger on context.Context so middleware can attach fields once (for example request_id) and downstream code logs without threading a logger parameter.

• gklog.WithLogger(ctx, log) stores log on ctx (or returns ctx unchanged when log is nil).
• gklog.LoggerFromContext(ctx) returns that logger, or slog.Default() when none was stored.
• gklog.L(ctx) is a short alias for LoggerFromContext.

Downstream should prefer LoggerFromContext(ctx).InfoContext(ctx, msg, ...) so the record carries the same context through slog handlers.

Releasing

After merging changes, tag a new version (or let consumers pin a pseudo version with go get goodkind.io/gklog@<commit>). Downstream modules update their require and drop any temporary replace directives pointing at a local checkout.