Separate share transfers from Files storage and add folder upload to New transfer.

Transfers lists only intentional shares while Files shows all storage, and New transfer accepts folder picks with flattened file uploads.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Models/Transfer.php

@@ -166,6 +166,23 @@ class Transfer extends Model
         return $query->where('is_folder', true);
     }
 
+    public function scopeStorageContainers(Builder $query): Builder
+    {
+        return $query->where(function (Builder $inner) {
+            $inner->where('is_folder', true)->orWhere('is_root_storage', true);
+        });
+    }
+
+    public function scopeShareTransfers(Builder $query): Builder
+    {
+        return $query->where('is_folder', false)->where('is_root_storage', false);
+    }
+
+    public function isShareTransfer(): bool
+    {
+        return ! $this->is_folder && ! $this->is_root_storage;
+    }
+
     public function isStorageContainer(): bool
     {
         return $this->is_folder || $this->is_root_storage;