feat(ui): import_media command in the typed api

src/lib/api.ts

@@ -431,6 +431,12 @@ export const api = {
   // already had rather than resetting it to auto.
   reprocessTranscript: (meetingId: MeetingId, model: string, language?: string) =>
     invoke<void>("reprocess_transcript", { meetingId, model, language }),
+  // Manually add a meeting from an existing recording — a local audio/video
+  // file path or a URL (YouTube/streaming page or direct media URL). Requires
+  // ffmpeg (and yt-dlp for URLs) on PATH; neither is bundled. Returns the new
+  // meeting's id once transcription + diarization have finished.
+  importMedia: (source: string, title?: string) =>
+    invoke<MeetingId>("import_media", { source, title }),
   resumeTranscription: (meetingId: MeetingId) =>
     invoke<void>("resume_transcription", { meetingId }),
   listMeetings: (filter?: MeetingFilter) =>