OLS-1980: Add autodiscovery for indexID value

[syedriko]

Description

Make the Faiss index id for RAG databases optional as there's usually no need to specify it since there's only one index in a database anyway.

Type of change

• Refactor
• New feature
• Bug fix
• CVE fix
• Optimization
• Documentation Update
• Configuration Update
• Bump-up dependent library
• Bump-up library or tool used for development (does not change the final image)
• CI configuration change
• Konflux configuration change

Related Tickets & Documents

• Related Issue # https://issues.redhat.com/browse/OLS-1980
• Closes #

Checklist before requesting a review

• I have performed a self-review of my code.
• PR has passed all pre-merge test jobs.
• If it is a core feature, I have added thorough tests.

Testing

• Please provide detailed steps to perform tests related to this code change.
• How were the fix/results from this change verified? Please provide relevant screenshots or results.

[openshift-ci-robot]

@syedriko: This pull request references OLS-1980 which is a valid jira issue.

In response to this:

Description

Make the Faiss index id for RAG databases optional as there's usually no need to specify it since there's only one index in a database anyway.

Type of change

• Refactor
• New feature
• Bug fix
• CVE fix
• Optimization
• Documentation Update
• Configuration Update
• Bump-up dependent library
• Bump-up library or tool used for development (does not change the final image)
• CI configuration change
• Konflux configuration change

Related Tickets & Documents

• Related Issue # https://issues.redhat.com/browse/OLS-1980
• Closes #

Checklist before requesting a review

• I have performed a self-review of my code.
• PR has passed all pre-merge test jobs.
• If it is a core feature, I have added thorough tests.

Testing

• Please provide detailed steps to perform tests related to this code change.
• How were the fix/results from this change verified? Please provide relevant screenshots or results.

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[syedriko]

/retest

[syedriko]

/test e2e-ols-cluster

[syedriko]

/retest

[syedriko]

/retest

[openshift-ci]

@syedriko: all tests passed!

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