feat: lazysecrets list's JSON has each entry's config reference and web page

internal/listing/listing_test.go

@@ -87,6 +87,11 @@ func TestListLoadsAndCaches(t *testing.T) {
 			t.Errorf("provider %q", e.Provider)
 		}
 	}
+	for _, e := range got {
+		if e.Kind == "secret" && e.Provider == "azure" && (!strings.HasPrefix(e.Reference, "@Microsoft.KeyVault(") || e.URL == "") {
+			t.Errorf("%s: reference %q, url %q", e.Link, e.Reference, e.URL)
+		}
+	}
 	if len(f.Sources) != 1 || len(f.Containers) == 0 || len(f.Objects) == 0 {
 		t.Errorf("not cached: %d sources, %d containers, %d objects", len(f.Sources), len(f.Containers), len(f.Objects))
 	}