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/20260409133000_add_fourge_passwords.sql

@@ -0,0 +1,18 @@
+create table if not exists public.fourge_passwords (
+  id uuid default gen_random_uuid() primary key,
+  service_name text not null,
+  service_url text default '',
+  username text not null default '',
+  encrypted_password text not null,
+  password_iv text not null,
+  notes text default '',
+  created_by uuid references public.profiles(id) on delete set null,
+  created_at timestamptz not null default now(),
+  updated_at timestamptz not null default now()
+);
+
+alter table public.fourge_passwords enable row level security;
+
+create policy "Team all fourge_passwords" on public.fourge_passwords
+  for all using (get_my_role() = 'team')
+  with check (get_my_role() = 'team');