fix(ai): fix infinite loop when no Os are found

[rickstaa]

What does this pull request do? Explain your changes. (required)

This pull request prevents the orchestrator selection routine from staying in an infinite loop when no Orchestrators can be found.

Specific updates (required)

• Moved the selection retry context in the ai_process up to prevent an infinite loop.

How did you test each of these updates (required)

I build the binaries and tested the orchestrator off-chain.

Does this pull request close any open issues?

Checklist:

• [x] Read the contribution guide
• [x] make runs successfully
• [ ] All tests in ./test.sh pass
• [x] README and other documentation updated
• [ ] Pending changelog updated