feat: add support for Pushover notification provider

- Updated the list of supported notification provider types to include 'pushover'.
- Enhanced the notifications API tests to validate Pushover integration.
- Modified the notifications form to include fields specific to Pushover, such as API Token and User Key.
- Implemented CRUD operations for Pushover providers in the settings.
- Added end-to-end tests for Pushover provider functionality, including form rendering, payload validation, and security checks.
- Updated translations to include Pushover-specific labels and placeholders.

frontend/src/api/__tests__/notifications.test.ts

@@ -53,7 +53,7 @@ describe('notifications api', () => {
     await testProvider({ id: '2', name: 'test', type: 'discord' })
     expect(client.post).toHaveBeenCalledWith('/notifications/providers/test', { id: '2', name: 'test', type: 'discord' })
 
-    await expect(createProvider({ name: 'x', type: 'pushover' })).rejects.toThrow('Unsupported notification provider type: pushover')
+    await expect(createProvider({ name: 'x', type: 'pagerduty' })).rejects.toThrow('Unsupported notification provider type: pagerduty')
     await expect(updateProvider('2', { name: 'updated', type: 'generic' })).rejects.toThrow('Unsupported notification provider type: generic')
     await testProvider({ id: '2', name: 'test', type: 'telegram' })
     expect(client.post).toHaveBeenCalledWith('/notifications/providers/test', { id: '2', name: 'test', type: 'telegram' })

frontend/src/api/notifications.test.ts

@@ -16,6 +16,7 @@ import {
   previewExternalTemplate,
   getSecurityNotificationSettings,
   updateSecurityNotificationSettings,
+  SUPPORTED_NOTIFICATION_PROVIDER_TYPES,
 } from './notifications'
 
 vi.mock('./client', () => ({
@@ -118,7 +119,7 @@ describe('notifications api', () => {
       type: 'gotify',
     })
 
-    await expect(createProvider({ name: 'Bad', type: 'pushover' })).rejects.toThrow('Unsupported notification provider type: pushover')
+    await expect(createProvider({ name: 'Bad', type: 'sms' })).rejects.toThrow('Unsupported notification provider type: sms')
     await expect(updateProvider('bad', { type: 'generic' })).rejects.toThrow('Unsupported notification provider type: generic')
   })
 
@@ -228,4 +229,28 @@ describe('notifications api', () => {
     expect(mockedClient.put).toHaveBeenCalledWith('/notifications/settings/security', { enabled: false, min_log_level: 'error' })
     expect(updated.enabled).toBe(false)
   })
+
+  it('pushover is in SUPPORTED_NOTIFICATION_PROVIDER_TYPES', () => {
+    expect(SUPPORTED_NOTIFICATION_PROVIDER_TYPES).toContain('pushover')
+  })
+
+  it('sanitizeProviderForWriteAction preserves token for pushover type', async () => {
+    mockedClient.post.mockResolvedValue({ data: { id: 'po1' } })
+    mockedClient.put.mockResolvedValue({ data: { id: 'po1' } })
+
+    await createProvider({ name: 'Pushover', type: 'pushover', gotify_token: 'app-api-token', url: 'uQiRzpo4DXghDmr9QzzfQu27cmVRsG' })
+    expect(mockedClient.post).toHaveBeenCalledWith('/notifications/providers', {
+      name: 'Pushover',
+      type: 'pushover',
+      token: 'app-api-token',
+      url: 'uQiRzpo4DXghDmr9QzzfQu27cmVRsG',
+    })
+
+    await updateProvider('po1', { type: 'pushover', url: 'uQiRzpo4DXghDmr9QzzfQu27cmVRsG', gotify_token: 'new-token' })
+    expect(mockedClient.put).toHaveBeenCalledWith('/notifications/providers/po1', {
+      type: 'pushover',
+      url: 'uQiRzpo4DXghDmr9QzzfQu27cmVRsG',
+      token: 'new-token',
+    })
+  })
 })

frontend/src/api/notifications.ts

@@ -1,6 +1,6 @@
 import client from './client';
 
-export const SUPPORTED_NOTIFICATION_PROVIDER_TYPES = ['discord', 'gotify', 'webhook', 'email', 'telegram', 'slack'] as const;
+export const SUPPORTED_NOTIFICATION_PROVIDER_TYPES = ['discord', 'gotify', 'webhook', 'email', 'telegram', 'slack', 'pushover'] as const;
 export type SupportedNotificationProviderType = (typeof SUPPORTED_NOTIFICATION_PROVIDER_TYPES)[number];
 const DEFAULT_PROVIDER_TYPE: SupportedNotificationProviderType = 'discord';
 
@@ -59,7 +59,7 @@ const sanitizeProviderForWriteAction = (data: Partial<NotificationProvider>): Pa
 
   delete payload.gotify_token;
 
-  if (type !== 'gotify' && type !== 'telegram' && type !== 'slack') {
+  if (type !== 'gotify' && type !== 'telegram' && type !== 'slack' && type !== 'pushover') {
     delete payload.token;
     return payload;
   }