feat(notif): add ntfy agent

[deecewan]

Description

adds support for ntfy notifications

heavily inspired by #2196

Screenshot (if UI-related)

To-Dos

• Successful build yarn build
• Translation keys yarn i18n:extract
• Database migration (if required)

[Copilot]

Pull Request Overview

Adds support for ntfy notifications by introducing a new settings page, integrating ntfy into the backend, and updating documentation.

• Introduce a Next.js page and form component for configuring ntfy notifications
• Register ntfy in server settings, routes, and as a notification agent
• Add ntfy docs and update the notifications navigation

Reviewed Changes

Copilot reviewed 10 out of 12 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/pages/settings/notifications/ntfy.tsx	New page component for ntfy notification settings
src/components/Settings/SettingsNotifications.tsx	Include ntfy in the notifications navigation tabs
src/components/Settings/Notifications/NotificationsNtfy/index.tsx	New form component with validation and test button
server/routes/settings/notifications.ts	Added GET/POST/test endpoints for ntfy settings
server/lib/settings.ts	Defined NotificationAgentNtfy and default settings
server/lib/notifications/agents/ntfy.ts	Implemented NtfyAgent with payload construction
server/index.ts	Registered NtfyAgent on application startup
docs/using-overseerr/notifications/ntfy.md	Documentation for ntfy configuration
docs/using-overseerr/notifications/README.md	Added ntfy to the list of supported agents

Files not reviewed (2)

• overseerr-api.yml: Language not supported
• src/i18n/locale/en.json: Language not supported

Comments suppressed due to low confidence (2)

src/components/Settings/Notifications/NotificationsNtfy/index.tsx:29

• New component NotificationsNtfy lacks unit or integration tests; consider adding tests for form validation, API calls, and the test-notification flow.

const NotificationsNtfy = () => {

server/routes/settings/notifications.ts:417

• New ntfy API routes are not covered by any tests; consider adding route tests to verify GET, POST, and test endpoints.

notificationRoutes.get('/ntfy', (_req, res) => {