[add]

性別の初期表示を追加

src/app/pages/family-edit/family-edit.ts

           relationship: this.family.relationship,
           birthDate: this.family.birthDate,
           note: this.family.note,
+          fatherId: this.family.fatherId,
+          motherId: this.family.motherId,
+          spouseId: this.family.spouseId,
+          gender: this.family.gender,
         });
       }
     }
     }
 
     if (!this.familyId && this.relationMode === 'child') {
-      this.familyForm.patchValue({
-        fatherId: this.baseFamilyId,
-      });
+      const baseFamily = this.familyService.getFamilyById(this.baseFamilyId);
+
+      if (baseFamily?.gender === 'male') {
+        this.familyForm.patchValue({
+          fatherId: this.baseFamilyId,
+        });
+      }
+
+      if (baseFamily?.gender === 'female') {
+        this.familyForm.patchValue({
+          motherId: this.baseFamilyId,
+        });
+      }
     }
   }