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/tools/bash.go

@@ -17,7 +17,7 @@ import (
 	"time"
 	"unicode/utf8"
 
-	"git.knownelement.com/reachableceo/MOPAC/harness/internal/llm"
+	"ukrrs.com/mopac/harness/internal/llm"
 )
 
 // ErrDenied marks gate rejections; the conductor surfaces them to the model