normalizers: added a structure for normalizers; refactoring sources -> sources+normalizers is still todo.

cmd/weatherfeeder/main.go

@@ -14,11 +14,13 @@ import (
 	"gitea.maximumdirect.net/ejr/feedkit/config"
 	fkdispatch "gitea.maximumdirect.net/ejr/feedkit/dispatch"
 	fkevent "gitea.maximumdirect.net/ejr/feedkit/event"
+	fknormalize "gitea.maximumdirect.net/ejr/feedkit/normalize"
 	fkpipeline "gitea.maximumdirect.net/ejr/feedkit/pipeline"
 	fkscheduler "gitea.maximumdirect.net/ejr/feedkit/scheduler"
 	fksinks "gitea.maximumdirect.net/ejr/feedkit/sinks"
 	fksources "gitea.maximumdirect.net/ejr/feedkit/sources"
 
+	wfnormalizers "gitea.maximumdirect.net/ejr/weatherfeeder/internal/normalizers"
 	wfsources "gitea.maximumdirect.net/ejr/weatherfeeder/internal/sources"
 )
 
@@ -90,8 +92,20 @@ func main() {
 
 	events := make(chan fkevent.Event, 256)
 
+	// --- Normalization (optional) ---
+	//
+	// We install feedkit's normalize.Processor even before any normalizers exist.
+	// With an empty registry and RequireMatch=false, this is a no-op passthrough.
+	// It will begin transforming events as soon as:
+	//   1) sources emit raw schemas (raw.*), and
+	//   2) matching normalizers are registered.
+	normReg := &fknormalize.Registry{}
+	wfnormalizers.RegisterBuiltins(normReg)
+
 	pl := &fkpipeline.Pipeline{
-		Processors: nil,
+		Processors: []fkpipeline.Processor{
+			fknormalize.Processor{Registry: normReg},
+		},
 	}
 
 	s := &fkscheduler.Scheduler{