Handle repo resolution errors gracefully in agent-task list

Updated listRun to ignore errors from BaseRepo resolution and proceed when possible. Adjusted tests to reflect that repo resolution errors no longer surface, improving robustness when repo information is ambiguous.

pkg/cmd/agent-task/list/list.go

@@ -85,11 +85,13 @@ func listRun(opts *ListOptions) error {
 	defer opts.IO.StopProgressIndicator()
 	var sessions []*capi.Session
 	ctx := context.Background()
+
+	var repo ghrepo.Interface
 	if opts.BaseRepo != nil {
-		repo, err := opts.BaseRepo()
-		if err != nil {
-			return err
-		}
+		repo, _ = opts.BaseRepo()
+	}
+
+	if repo != nil && repo.RepoOwner() != "" && repo.RepoName() != "" {
 		sessions, err = capiClient.ListSessionsForRepo(ctx, repo.RepoOwner(), repo.RepoName(), opts.Limit)
 		if err != nil {
 			return err

pkg/cmd/agent-task/list/list_test.go

@@ -114,10 +114,12 @@ func Test_listRun(t *testing.T) {
 			wantOut:  "no agent tasks found\n",
 		},
 		{
-			name:        "repo resolution error surfaces",
+			name:        "repo resolution error does not surface",
 			tty:         true,
 			baseRepoErr: errors.New("ambiguous repo"),
-			wantErr:     errors.New("ambiguous repo"),
+			wantErr:     nil,
+			stubs:       func(reg *httpmock.Registry) { registerEmptySessionsMock(reg) },
+			wantOut:     "no agent tasks found\n",
 		},
 		{
 			name:     "repo scoped many sessions (tty)",