fix: even more changes to accommodate older GraphQL schema

commands/storage.md

@@ -11,7 +11,6 @@ Execute the `unraid_storage` MCP tool with action: `$1`
 - `shares` - List all user shares with sizes and allocation
 - `disks` - List all disks in the array
 - `disk_details` - Get detailed info for a specific disk (requires disk identifier)
-- `unassigned` - List unassigned devices
 
 **Logs:**
 - `log_files` - List available system log files
@@ -23,7 +22,6 @@ Execute the `unraid_storage` MCP tool with action: `$1`
 /unraid-storage shares
 /unraid-storage disks
 /unraid-storage disk_details disk1
-/unraid-storage unassigned
 /unraid-storage log_files
 /unraid-storage logs /var/log/syslog
 ```