fix(milestone): make +create --description/--due-date optional to match platform API

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

doc/changes/milestone-create-optional-fields.md

@@ -0,0 +1,20 @@
+# milestone +create 放宽必填参数
+
+## 背景
+
+`milestone +create` 之前把 `--description` 与 `--due-date` 标记为必填，
+但平台 v1 API 创建里程碑仅要求 `name`（已在生产环境
+`POST /api/v1/:owner/:repo/milestones` 用仅含 `{"name": ...}` 的请求验证成功）。
+CLI 侧的额外限制迫使用户为可选字段编造内容。
+
+## 变更
+
+- `--description` 与 `--due-date` 改为可选；未提供时请求体中省略对应字段。
+- `milestonePayload` 的 `requireAll` 参数收敛为 `requireName`，仅校验 `--name`。
+
+## 验证
+
+- `go test ./shortcuts/milestone/`（新增 `TestMilestoneCreateNameOnly`
+  断言未提供的可选字段不出现在请求体中）
+- `go vet ./...`
+- 生产 gitlink.org.cn 实测：`milestone +create -n <name>` 仅带名称创建成功。

shortcuts/milestone/milestone.go

@@ -46,8 +46,8 @@ func Shortcuts() []*common.Shortcut {
 			Description: "Create a milestone",
 			Flags: []common.Flag{
 				{Name: "name", Short: "n", Usage: "Milestone name", Required: true},
-				{Name: "description", Short: "d", Usage: "Milestone description", Required: true},
-				{Name: "due-date", Usage: "Due date in YYYY-MM-DD format", Required: true},
+				{Name: "description", Short: "d", Usage: "Milestone description"},
+				{Name: "due-date", Usage: "Due date in YYYY-MM-DD format"},
 			},
 			Run: func(ctx *common.RuntimeContext) error {
 				if err := ctx.ResolveOwnerRepo(); err != nil {
@@ -168,7 +168,7 @@ func milestoneStatusPath(ctx *common.RuntimeContext, id string) string {
 	return fmt.Sprintf("%s/milestones/%s/update_status", ctx.RepoPath(), url.PathEscape(id))
 }
 
-func milestonePayload(ctx *common.RuntimeContext, requireAll bool) (map[string]interface{}, error) {
+func milestonePayload(ctx *common.RuntimeContext, requireName bool) (map[string]interface{}, error) {
 	payload := map[string]interface{}{}
 	if name := ctx.Arg("name"); name != "" {
 		payload["name"] = name
@@ -180,11 +180,9 @@ func milestonePayload(ctx *common.RuntimeContext, requireAll bool) (map[string]i
 		payload["effective_date"] = dueDate
 	}
 
-	if requireAll {
-		for _, name := range []string{"name", "description", "due-date"} {
-			if _, err := ctx.RequireArg(name); err != nil {
-				return nil, err
-			}
+	if requireName {
+		if _, err := ctx.RequireArg("name"); err != nil {
+			return nil, err
 		}
 		return payload, nil
 	}

shortcuts/milestone/milestone_test.go

@@ -55,6 +55,31 @@ func TestMilestoneCreatePayload(t *testing.T) {
 	assertEqual(t, payload["effective_date"], "2026-07-01")
 }
 
+func TestMilestoneCreateNameOnly(t *testing.T) {
+	var payload map[string]interface{}
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		assertRequest(t, r, "POST", "/v1/owner/repo/milestones.json")
+		payload = decodeJSON(t, r)
+		writeJSON(t, w, map[string]interface{}{"status": 0, "message": "success"})
+	}))
+	defer server.Close()
+
+	err := runMilestoneShortcut(t, server, "create", map[string]string{
+		"name": "v1.1",
+	})
+	if err != nil {
+		t.Fatalf("create shortcut failed: %v", err)
+	}
+
+	assertEqual(t, payload["name"], "v1.1")
+	if _, ok := payload["description"]; ok {
+		t.Fatalf("description should be omitted when not provided")
+	}
+	if _, ok := payload["effective_date"]; ok {
+		t.Fatalf("effective_date should be omitted when not provided")
+	}
+}
+
 func TestMilestoneViewWithIssueFilters(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		assertRequest(t, r, "GET", "/v1/owner/repo/milestones/7.json")