change to get method for listforecast

[ninyolittle]

No description provided.

[tituscarl]

@ninyolittle since you're going to modify this, can you also check the link below? this is for consistency across blueapi methods.
https://internal-docs-dev.alphaus.cloud/blue-api/#methods

[ninyolittle]

thanks, @tituscarl. I wasn’t aware that we already have a specific guidelines for defining endpoints. I’ll close this PR for now since it’s not a priority at the moment.
I changed this to GET because of RBAC. I’ve been mapping endpoints along with their HTTP methods to the corresponding permissions, and I noticed that this endpoint uses POST even though it behaves like a List operation.
I’ll take this into account and follow these guidelines for future API endpoint designs.