[OMEGA-491] Allow to setting an embedding provider via the launcher

[paul-v-snet]

Description

Introduces a new -e parameter to start launcher command which allows to set an embedding provider when starting Omega.
The default embedding provider Local for the ASICloud provider was kept as before to ensure this won't break existing users vector stores after the update.

The parameter accepts only Local, OpenAI, and ASICloud; these are the complete set of currently supported embedding providers. The parameter is also case-sensitive since the value is compared with Local in src/memory.metta, and using local could lead to crashes:

Omega/src/memory.metta

Line 46 in 5bdd895

(if (== (embeddingprovider) Local)

The final embedding provider is selected in the following order:

1. -e <provider>
2. EMBEDDING_PROVIDER if -e is not passed
3. The default provider (Local for ASICloud) if neither of the above is provided

How Has This Been Tested?

• Ran via start with the -e parameter and different providers: all passed
• Ran mock tests: all green

Checklist

• PR contains autogenerated code
• Self-review completed
• Test scenarios above are passed with the version of the code from PR

[timur-ashkenov]

@paul-v-snet And if you choose different providers for the LLM and embeddings—for example, -p Anthropic -e OpenAI—how does the OpenAI key get into the container? Right now, it seems only the LLM provider's key is passed through. Is a separate key required for embeddings?

[paul-v-snet]

@timur-ashkenov, right, my bad, thanks for catching that. I'll fix it.

[paul-v-snet]

@timur-ashkenov, fixed in ca3d3b5