Migrate email catcher to Mailpit

docs/openapi/visione.openapi.yaml

@@ -897,7 +897,7 @@
         "additionalProperties": false,
         "properties": {
           "delivery": {
-            "example": "mailhog",
+            "example": "mailpit",
             "type": "string"
           },
           "expires_in_minutes": {
@@ -2209,7 +2209,7 @@
     },
     "/api/v1/auth/otp/request": {
       "post": {
-        "description": "Sends a one-time code by email through MailHog locally.",
+        "description": "Sends a one-time code by email through Mailpit locally.",
         "operationId": "AuthController.requestOtp",
         "parameters": [],
         "requestBody": {