DLV-C3: tag-wanted is the mesh-delivery-checker definition's holder event, branch included

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig

modules/mesh-delivery-checker/go.mod

@@ -12,6 +12,7 @@ require git.novox.be/novox/mesh-catalog/modules/mesh-build-go/buildstep v0.0.0-2
 
 require (
 	git.novox.be/novox/mesh-contracts/go/seats/gopackageregistry v0.0.0-00010101000000-000000000000
+	git.novox.be/novox/mesh-contracts/go/seats/meshdeliverychecker v0.0.0-00010101000000-000000000000
 	git.novox.be/novox/mesh-contracts/go/seats/npmpackageregistry v0.0.0-00010101000000-000000000000
 	git.novox.be/novox/mesh-delivery/modules/mesh-delivery-builder/buildrun v0.0.0-00010101000000-000000000000
 	github.com/antithesishq/antithesis-sdk-go v0.7.0-default-no-op // indirect

modules/mesh-delivery-checker/internal/check/tagwanted.go

@@ -8,6 +8,7 @@ import (
 	"sync"
 	"time"
 
+	"git.novox.be/novox/mesh-contracts/go/seats/meshdeliverychecker"
 	"git.novox.be/novox/mesh-sdk/go/catalogue"
 	"git.novox.be/novox/mesh-sdk/go/delivery"
 )
@@ -15,7 +16,7 @@ import (
 // EventTagWanted is the checker's event that asks the builder for a group member's tagged versions (design 51 *Tagged
 // versions*, ADR 0610 §1), on the checker's own family asks (its stream asks, kept seven days), apart from the stream
 // checks, so a waiter on a verdict does not wake on it.
-const EventTagWanted = "tag-wanted"
+const EventTagWanted = meshdeliverychecker.HolderEventTagWanted
 
 // AsksStream is the checker's stream that carries tag-wanted and verdict, in its old streams section (ADR 0619): the
 // bus names it ASKS.
@@ -25,18 +26,9 @@ const AsksStream = "asks"
 // fails naming the package (design 51 *Tagged versions*: the publish's bound, 10 minutes).
 const DefaultPublishBound = 10 * time.Minute
 
-// TagWanted is the body of tag-wanted: the seat definition of mesh-delivery-checker, its holder event tag-wanted, with
-// the branch the builder keeps the ask under (the lead's ruling of 2026-11-04 12:5x). The tag is left to the builder,
-// which makes it from the branch, so one part alone names a branch's tag.
-type TagWanted struct {
-	Repository string `json:"repository"`
-	Branch     string `json:"branch"`
-	Head       string `json:"head"`
-	Tag        string `json:"tag,omitempty"`
-	Module     string `json:"module"`
-	Package    string `json:"package"`
-	Pull       int64  `json:"pull,omitempty"`
-}
+// TagWanted is the body of tag-wanted, as the seat definition of mesh-delivery-checker says it. The tag is left to the
+// builder, which makes it from the branch, so one part alone names a branch's tag.
+type TagWanted = meshdeliverychecker.TagWantedHolderEvent
 
 // PackageSeats are the registry seats a package of each language is published through (design 51 *The seats*).
 var PackageSeats = map[string]string{"go": "go-package-registry", "typescript": "npm-package-registry"}