xRangerDEandClaude Opus 4.7 47862e7fbf feat: Discord webhook notifications for live + VOD events
For users who run the app on a dedicated archive box and aren't
watching the queue panel directly. Three optional event types post
to a Discord webhook:

- Live recording started: red embed with streamer + URL + output
  filename. Fires inside downloadLiveStream after chat-capture
  init, before streamlink launches, so a hung streamlink doesn't
  silently delay the alert.
- Live recording ended: green (ok) or purple (failed) embed with
  duration, file size, captured-chat-message count, output filename.
  Fires after streamlink exits — picks up cancellation, integrity
  failure, and clean stream-ended exits the same way.
- VOD download complete: green embed with file count + total bytes.
  Skipped for live items (those have their own end-of-recording
  embed; double-firing would be noisy).

Server:
- New isAcceptableDiscordWebhook(url) regex sanity-check —
  refuses URLs that aren't discord.com/api/webhooks/* so a
  pasted-by-mistake other URL doesn't leak data anywhere.
- sendDiscordWebhook(payload) is fire-and-forget: 8s timeout,
  errors logged via appendDebugLog but never surface to the user.
  Should NOT block the recording flow.
- DiscordEmbedColor enum maps live/success/info to known palette
  values (red / green / Twitch purple).
- Embed body slices fields to Discord's documented length limits
  (title 256, description 4096, field name 256, field value 1024,
  max 25 fields per embed) so a runaway long stream title can't
  produce a rejected webhook.

Renderer / settings:
- New Settings card "Discord-Webhook" between Backup and Updates.
  URL input + 3 toggles (live-start / live-end / vod-complete).
  All three default off, URL empty — totally inert until the user
  configures it.
- AppConfig type, autosave fingerprint, syncSettingsForm,
  applyLanguageToStaticUI, debounced-save IDs all updated. Webhook
  URL is debounced like other text inputs so each keystroke
  doesn't trigger a save.
- DE + EN locales for every label.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-10 20:50:58 +02:00
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