Can't attach power conversion mod to e-ink tablet PC

### Describe the bug

I'm trying to attach bionic pcm to my e-ink tablet, but receive the following:
```
You can't unload a !
You cancel unloading the tool.
```

### Attach save file

[Nairn-trimmed.tar.gz](https://github.com/user-attachments/files/17177129/Nairn-trimmed.tar.gz)

### Steps to reproduce

1. 'a'ttach tool to a charged device

### Expected behavior

Able to attach mods to tools

### Screenshots


### Versions and configuration

- OS: Linux
- OS Version: LSB Version: n/a; Distributor ID: Gentoo; Description: Gentoo Linux; Release: 2.15; Codename: n/a;
- Game Version: cdda-experimental-2024-09-28-2040 5213009 [64-bit]
- Graphics Version: Tiles
- Game Language: System language []
- Mods loaded: [
Dark Days Ahead [dda],
Disable NPC Needs [no_npc_food],
Portal Storms Ignore NPCs [personal_portal_storms],
Slowdown Fungal Growth [no_fungal_growth],
Mind Over Matter [mindovermatter],
Stats Through Kills [stats_through_kills],
SpeedyDex [speedydex]
]

### Additional context

_No response_

Load the attached Nairn-trimmed.tar.gz save in Cataclysm-DDA and reproduce the failure by attaching bionic pcm to the charged e-ink tablet. Trace the tool-attachment path from that action and compare the unload error with the expected behavior; done means the mod attaches successfully without the cancellation message.

Written by the indexing model from the issue text.