The script to generate dotenv does not handle quoted vars

[spwoodcock]

Is your feature request related to a problem? Please describe.

• Quoted env vars loaded into the FastAPI server I think are not an issue, as Pydantic appears to strip quotes automatically on the Settings class.
• However, using the gen-env.sh script and entering quoted variables can cause issues.
• The output of gen-env.sh should be inspected to see if variables are quoted or not: it's causing an issue somewhere, reported during setup of FMTM.

Describe the solution you'd like

• Investigate the issue around variable quoting and fix the scripts are necessary.

Describe alternatives you've considered

• If the issue is in fact in the Python / FastAPI server startup, then there is a nice package to handle this: https://github.com/DanielJDufour/shear