Remove obsolete file manager organize options (#12)

Remove UI options for features that no longer exist:
- qB download auto-organize
- downloader smart classification
- seeding (keep seeding)

Also remove related warning banners and simplify move transfer labels.

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: truewhile <truewhile@users.noreply.github.com>

web/src/pages/useAutoOrganizeSettings.ts

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useMemo, useState } from 'react'
+import { useCallback, useEffect, useState } from 'react'
 import toast from 'react-hot-toast'
 
 import { adminAPI } from '../api/admin'
@@ -79,11 +79,6 @@ export function useAutoOrganizeSettings({ onScrapeAfterChange }: UseAutoOrganize
     }
   }, [dirty, save])
 
-  const moveKeepsSeeding = useMemo(
-    () => config.transferMode === 'move' && settingOn(config.keepSeeding),
-    [config.keepSeeding, config.transferMode],
-  )
-
   return {
     config,
     dirty,
@@ -91,7 +86,6 @@ export function useAutoOrganizeSettings({ onScrapeAfterChange }: UseAutoOrganize
     running,
     loading,
     activeTab,
-    moveKeepsSeeding,
     refresh,
     save,
     runNow,