feat(notifications): add a Gotify payload format to the webhook

Gotify's POST /message types priority as an integer, so the generic body, which sends the word, was refused with a 400 before the token was ever the question. The webhook card now offers a payload format: generic, which stays byte for byte what it was, and gotify, which sends title, message, an integer priority and extras.

Priorities follow the Gotify Android client's channel thresholds: 5 for routine events (audible), 8 for medication reminders (the lowest heads-up value), 10 for urgent events. The extras declare plain text and carry the event name, masked to reminder in discreet mode as the generic body does.

The choice lives in the encrypted channel config, so no migration: an absent format is generic, only gotify is written, and a save that omits the field keeps the stored choice. GET returns the resolved value. The sender comment no longer suggests an Authorization Bearer header for Gotify, which takes X-Gotify-Key or a token query parameter.

Refs #947

messages/de.json

@@ -5590,6 +5590,10 @@
     "webhookUrlHint": "Die vollständige URL für den POST. Muss öffentlich erreichbar sein.",
     "webhookHeaderName": "Header-Name (optional)",
     "webhookHeaderValue": "Header-Wert (optional)",
+    "webhookFormat": "Nachrichtenformat",
+    "webhookFormatGeneric": "Generisches JSON",
+    "webhookFormatGotify": "Gotify",
+    "webhookFormatGotifyHint": "Nutze die URL, die auf /message endet, und trage das App-Token als Header X-Gotify-Key ein.",
     "email": "E-Mail",
     "emailDescription": "Warnungen und Erinnerungen per E-Mail empfangen.",
     "emailEnable": "E-Mail aktivieren",

messages/en.json

@@ -5590,6 +5590,10 @@
     "webhookUrlHint": "The full URL to POST to. Must be publicly reachable.",
     "webhookHeaderName": "Header name (optional)",
     "webhookHeaderValue": "Header value (optional)",
+    "webhookFormat": "Payload format",
+    "webhookFormatGeneric": "Generic JSON",
+    "webhookFormatGotify": "Gotify",
+    "webhookFormatGotifyHint": "Use the URL ending in /message and put the application token in the header X-Gotify-Key.",
     "email": "Email",
     "emailDescription": "Receive alerts and reminders by email.",
     "emailEnable": "Enable email",

messages/es.json

@@ -5590,6 +5590,10 @@
     "webhookUrlHint": "La URL completa para el POST. Debe ser accesible públicamente.",
     "webhookHeaderName": "Nombre de cabecera (opcional)",
     "webhookHeaderValue": "Valor de cabecera (opcional)",
+    "webhookFormat": "Formato del mensaje",
+    "webhookFormatGeneric": "JSON genérico",
+    "webhookFormatGotify": "Gotify",
+    "webhookFormatGotifyHint": "Usa la URL que termina en /message y pon el token de la aplicación en la cabecera X-Gotify-Key.",
     "email": "Correo electrónico",
     "emailDescription": "Recibe alertas y recordatorios por correo electrónico.",
     "emailEnable": "Activar correo electrónico",

messages/fr.json

@@ -5590,6 +5590,10 @@
     "webhookUrlHint": "L’URL complète pour le POST. Doit être accessible publiquement.",
     "webhookHeaderName": "Nom d’en-tête (facultatif)",
     "webhookHeaderValue": "Valeur d’en-tête (facultatif)",
+    "webhookFormat": "Format du message",
+    "webhookFormatGeneric": "JSON générique",
+    "webhookFormatGotify": "Gotify",
+    "webhookFormatGotifyHint": "Utilisez l’URL se terminant par /message et placez le jeton de l’application dans l’en-tête X-Gotify-Key.",
     "email": "E-mail",
     "emailDescription": "Recevoir les alertes et les rappels par e-mail.",
     "emailEnable": "Activer l’e-mail",

messages/it.json

@@ -5590,6 +5590,10 @@
     "webhookUrlHint": "L’URL completo per il POST. Deve essere raggiungibile pubblicamente.",
     "webhookHeaderName": "Nome intestazione (opzionale)",
     "webhookHeaderValue": "Valore intestazione (opzionale)",
+    "webhookFormat": "Formato del messaggio",
+    "webhookFormatGeneric": "JSON generico",
+    "webhookFormatGotify": "Gotify",
+    "webhookFormatGotifyHint": "Usa l’URL che termina con /message e inserisci il token dell’applicazione nell’intestazione X-Gotify-Key.",
     "email": "Email",
     "emailDescription": "Ricevi avvisi e promemoria via email.",
     "emailEnable": "Attiva email",

messages/ko.json

@@ -5590,6 +5590,10 @@
     "webhookUrlHint": "POST를 보낼 전체 URL이에요. 외부에서 접근할 수 있어야 해요.",
     "webhookHeaderName": "헤더 이름 (선택)",
     "webhookHeaderValue": "헤더 값 (선택)",
+    "webhookFormat": "메시지 형식",
+    "webhookFormatGeneric": "일반 JSON",
+    "webhookFormatGotify": "Gotify",
+    "webhookFormatGotifyHint": "/message로 끝나는 URL을 쓰고, 앱 토큰은 X-Gotify-Key 헤더에 넣어 주세요.",
     "email": "이메일",
     "emailDescription": "경고와 알림을 이메일로 받아요.",
     "emailEnable": "이메일 켜기",

messages/pl.json

@@ -5590,6 +5590,10 @@
     "webhookUrlHint": "Pełny adres URL dla żądania POST. Musi być publicznie dostępny.",
     "webhookHeaderName": "Nazwa nagłówka (opcjonalnie)",
     "webhookHeaderValue": "Wartość nagłówka (opcjonalnie)",
+    "webhookFormat": "Format wiadomości",
+    "webhookFormatGeneric": "Ogólny JSON",
+    "webhookFormatGotify": "Gotify",
+    "webhookFormatGotifyHint": "Użyj adresu URL kończącego się na /message, a token aplikacji wpisz w nagłówku X-Gotify-Key.",
     "email": "E-mail",
     "emailDescription": "Otrzymuj alerty i przypomnienia e-mailem.",
     "emailEnable": "Włącz e-mail",