feat: Use separate Literal project for API

[KevinJBoyer]

Ticket

https://navalabs.atlassian.net/browse/DST-666

Changes

• Set up new project in Literal
• Add new secret to AWS Parameter Store, LITERAL_API_KEY_FOR_API
• If this env variable is set, use it for the Literal client used by the API

Context for reviewers

• This better isolates usage of the API in preparation for a pilot

Testing

Setting the variable locally, a query via the API appears in the Literal dashboard:

Here is the variable set in the AWS parameter store:

[github-actions]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
2820	2518	89%	80%	🟢

New Files

No new covered files...

Modified Files

File	Coverage	Status
app/src/app_config.py	95%	🟢
app/src/chat_api.py	96%	🟢
TOTAL	95%	🟢

updated for commit: 013c12d by action🐍