SD-M2d: the checker's tag-wanted names the pull request's branch

The lead's ruling of 13:0x: the builder removes the tag when the branch ends, so it needs the branch.

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

go/seats/meshdeliverychecker/contract.go

@@ -98,6 +98,8 @@ type VerdictHolderEvent struct {
 
 // TagWantedHolderEvent is the body of the holder's event tag-wanted.
 type TagWantedHolderEvent struct {
+	// the pull request's branch: its tag is removed when the branch ends
+	Branch string `json:"branch"`
 	// its head
 	Head string `json:"head"`
 	// the group member

go/seats/meshdeliverychecker/contract_test.go

@@ -19,7 +19,7 @@ func TestFixtures(t *testing.T) {
 	}{
 		{name: "verdict on the checker's own family", subject: "mesh.mod.mesh-delivery-checker.event.verdict", given: "{\"head\":\"cccccccccccccccccccccccccccccccccccccccc\",\"out-of-step\":[\"go/seats/meshbroker/contract.go\"],\"pull\":3,\"repository\":\"novox/mesh-contracts\",\"verdict\":\"fail\"}", wire: "{\"head\":\"cccccccccccccccccccccccccccccccccccccccc\",\"out-of-step\":[\"go/seats/meshbroker/contract.go\"],\"pull\":3,\"repository\":\"novox/mesh-contracts\",\"verdict\":\"fail\"}",
 			decode: func(b []byte) (any, error) { var v VerdictHolderEvent; err := json.Unmarshal(b, &v); return v, err }, subjectIs: regexp.MustCompile("^mesh\\.mod\\.[a-z0-9-]+\\.event\\.verdict$")},
-		{name: "tag-wanted on the checker's own family", subject: "mesh.mod.mesh-delivery-checker.event.tag-wanted", given: "{\"head\":\"cccccccccccccccccccccccccccccccccccccccc\",\"module\":\"mesh-sdk\",\"package\":\"go\",\"pull\":170,\"repository\":\"novox/mesh-sdk\",\"tag\":\"registry-1966\"}", wire: "{\"head\":\"cccccccccccccccccccccccccccccccccccccccc\",\"module\":\"mesh-sdk\",\"package\":\"go\",\"pull\":170,\"repository\":\"novox/mesh-sdk\",\"tag\":\"registry-1966\"}",
+		{name: "tag-wanted on the checker's own family", subject: "mesh.mod.mesh-delivery-checker.event.tag-wanted", given: "{\"branch\":\"feat/registry\",\"head\":\"cccccccccccccccccccccccccccccccccccccccc\",\"module\":\"mesh-sdk\",\"package\":\"go\",\"pull\":170,\"repository\":\"novox/mesh-sdk\",\"tag\":\"registry-1966\"}", wire: "{\"branch\":\"feat/registry\",\"head\":\"cccccccccccccccccccccccccccccccccccccccc\",\"module\":\"mesh-sdk\",\"package\":\"go\",\"pull\":170,\"repository\":\"novox/mesh-sdk\",\"tag\":\"registry-1966\"}",
 			decode: func(b []byte) (any, error) { var v TagWantedHolderEvent; err := json.Unmarshal(b, &v); return v, err }, subjectIs: regexp.MustCompile("^mesh\\.mod\\.[a-z0-9-]+\\.event\\.tag-wanted$")},
 		{name: "preview.written on the checker's stream", subject: "mesh.mod.mesh-delivery-checker.event.preview.written", given: "{}", wire: "{}",
 			decode: func(b []byte) (any, error) { var v map[string]any; err := json.Unmarshal(b, &v); return v, err }, subjectIs: regexp.MustCompile("^mesh\\.mod\\.[a-z0-9-]+\\.event\\.preview\\.written$")},

seats/mesh-delivery-checker/fixtures/events.json

@@ -21,6 +21,7 @@
       "repository": "novox/mesh-sdk",
       "pull": 170,
       "head": "cccccccccccccccccccccccccccccccccccccccc",
+      "branch": "feat/registry",
       "module": "mesh-sdk",
       "package": "go",
       "tag": "registry-1966"

seats/mesh-delivery-checker/seat.json

@@ -179,6 +179,10 @@
             "type": "string",
             "description": "its head"
           },
+          "branch": {
+            "type": "string",
+            "description": "the pull request's branch: its tag is removed when the branch ends"
+          },
           "module": {
             "type": "string",
             "description": "the group member"
@@ -195,6 +199,7 @@
         "required": [
           "repository",
           "head",
+          "branch",
           "module",
           "package"
         ]

ts/src/mesh-delivery-checker.ts

@@ -91,6 +91,8 @@ export interface VerdictHolderEvent {
 
 /** is the body of the holder's event tag-wanted. */
 export interface TagWantedHolderEvent {
+  /** the pull request's branch: its tag is removed when the branch ends */
+  "branch": string;
   /** its head */
   "head": string;
   /** the group member */