fix: Fix Agreement return format + fixed date format issues

Resolves #21 (closed)

spec/openapi.yaml

@@ -118,7 +118,7 @@ paths:
           content:
             application/json:
               schema:
-                $ref: "#/components/schemas/EfUser"
+                $ref: "#/components/schemas/EfUsers"
         403:
           description: Invalid credentials
         500:
@@ -198,6 +198,11 @@ components:
             - type: "null"
           description: The URL
 
+    EfUsers:
+      type: array
+      items:
+        $ref: "#/components/schemas/EfUser"
+
     EfUser:
       type: object
       properties: