[add]

檀家のクラス定義を作成

src/app/models/danka.ts

@@ -0,0 +1,13 @@
+export interface Phone {
+  tel: string;
+  note: string;
+}
+
+export interface Danka {
+  id: string;
+  householdName: string;
+  householder: string;
+  postalCode: string;
+  address: string;
+  phones: Phone[];
+}