Stay in battery mode even when charging

Hi,

First of all thank you for your auto-cpufreq tool.
I have a problem getting it to work.
When my computer is charging, the battery configuration is always applied.
I placed the configuration file in /etc but nothing changes.
My laptop is a CLEVO NS50MU.

Thank you for your help.

### Error output:
```text
No error output
```
---

### System information:

Add/paste output of:

```
auto-cpufreq --debug

Using settings defined in /etc/auto-cpufreq.conf file

-------------------------------------------------------------------------------

Linux distro: Fedora Linux 42 Workstation Edition
Linux kernel: 6.14.6-300.fc42.x86_64
Processor: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
Cores: 8
Architecture: x86_64
Driver: intel_pstate

------------------------------ Current CPU stats ------------------------------

CPU max frequency: 2800 MHz
CPU min frequency: 400 MHz

Core Usage Temperature Frequency
CPU0 4.0% 40 °C 768 MHz
CPU1 4.9% 42 °C 542 MHz
CPU2 4.0% 38 °C 1300 MHz
CPU3 0.0% 39 °C 400 MHz
CPU4 3.9% 40 °C 400 MHz
CPU5 0.0% 42 °C 400 MHz
CPU6 1.0% 38 °C 1300 MHz
CPU7 5.9% 39 °C 1300 MHz

auto-cpufreq version: 2.6.0

Python: 3.13.3
psutil package: 7.0.0
platform package: 1.0.8
click package: 8.2.0
distro package: 1.9.0

Computer type: Notebook
Battery is: charging

auto-cpufreq system resource consumption:
cpu usage: 0.0 %
memory use: 0.07 %

Total CPU usage: 1.4 %
Total system load: 0.34
Average temp. of all cores: 39.00 °C

Currently using: powersave governor
Currently turbo boost is: off

```

Also please be descriptive about the issue you're reporting, i.e: what you tried & what's the expected behaviour.

---

Start by reproducing the behavior with the reported CLEVO NS50MU setup, Fedora 42, and the /etc/auto-cpufreq.conf file, then inspect the output of auto-cpufreq --debug while charging. Done means the charging configuration is applied while the laptop is charging instead of the battery configuration.

Vom Indexierungsmodell aus dem Issue-Text verfasst.