#3400 [GUI] GUI 0.2.0 beta app overwrites JSON config file and does not respect edits done in Expert Mode

Description

## Strata Version
0.2.0-beta

## Description
After installing and configuring the new Windows GUI, Strata 0.2.0 cannot start Coder IQ_1 as it throws an OOM. The same model starts perfectly if launched from the old START-HERE.bat profile.

This is caused by Strata GUI overwriting some values in the JSON configuration file that are crucial for memory allocation:

- --kv reverts to int8 (was manually set to q4_0)
- --mmap-experts reverts to --resident-experts

The overwrite is observed by monitoring the JSON file, which changes when clicking Retry or Load Mode in the GUI. 

- The GUI SHALL NOT overwrite values that have been manually set in the JSON editor
- The GUI SHALL update its own values after the JSON file has been edited, internally or externally, so they are honored and maintained.

The two files are attached for comparison.

[strata-coder-iq1_m.LEGACY.json](https://github.com/user-attachments/files/33708929/strata-coder-iq1_m.LEGACY.json)
[strata-coder-iq1_m.GUI.json](https://github.com/user-attachments/files/33708928/strata-coder-iq1_m.GUI.json)



## System Configuration
CPU: intel Core i7-9750H
RAM: 32 GB 
GPUs: RTX 2070 8GB
OS: Windows 11
CUDA: Tested on CUDA 12 

## Additional Information
Legacy Strata (the old Python install still present on the same machine) starts correctly with the unmodified JSON file configuration.