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/20260407180500_add_server_status_overrides.sql

@@ -0,0 +1,22 @@
+create table if not exists public.server_status_overrides (
+  id boolean primary key default true,
+  supabase_egress_bytes bigint,
+  vercel_fast_data_transfer_bytes bigint,
+  vercel_edge_requests bigint,
+  vercel_function_invocations bigint,
+  vercel_active_cpu_hours numeric(10,4),
+  updated_at timestamptz not null default now()
+);
+
+alter table public.server_status_overrides enable row level security;
+
+drop policy if exists "Team all server_status_overrides" on public.server_status_overrides;
+create policy "Team all server_status_overrides"
+  on public.server_status_overrides
+  for all
+  using (get_my_role() = 'team')
+  with check (get_my_role() = 'team');
+
+insert into public.server_status_overrides (id)
+values (true)
+on conflict (id) do nothing;