Rename module path to ukrrs.com/mopac/harness

The old path carried the reachableceo org prefix while the repo lives at
git.knownelement.com/ukrrs/MOPAC; the drift was cited as doc rot. go.mod
and every internal import updated; build/vet/test clean in the builder.

💘 Generated with Crush

Assisted-by: Crush:glm-5.2

internal/events/server.go

@@ -10,7 +10,7 @@ import (
 	"net/http"
 	"time"
 
-	"git.knownelement.com/reachableceo/MOPAC/harness/internal/config"
+	"ukrrs.com/mopac/harness/internal/config"
 )
 
 // maxBodyBytes bounds webhook payloads; bigger deliveries are rejected

internal/events/server_test.go

@@ -13,7 +13,7 @@ import (
 	"sync"
 	"testing"
 
-	"git.knownelement.com/reachableceo/MOPAC/harness/internal/config"
+	"ukrrs.com/mopac/harness/internal/config"
 )
 
 const (