Fix file sharing load speed and move error; misc updates

- Remove recursive directory size calculations (single Seafile API call per list)
- Remove 'Used in this location' usage display
- Fix move using v2 per-type endpoints instead of broken batch endpoint
- Send entry type from frontend for correct move routing

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

supabase/migrations/20260423150000_add_meeting_notes.sql

@@ -0,0 +1,15 @@
+create table public.meeting_notes (
+  id uuid default gen_random_uuid() primary key,
+  meeting_at timestamptz default now() not null,
+  title text not null,
+  attendees text default '',
+  notes text not null default '',
+  created_by uuid references public.profiles(id) on delete set null,
+  created_at timestamptz default now() not null,
+  updated_at timestamptz default now() not null
+);
+
+alter table public.meeting_notes enable row level security;
+
+create policy "Team all meeting_notes" on public.meeting_notes
+  for all using (get_my_role() = 'team') with check (get_my_role() = 'team');