HPCC-35859 Document index default compression options

[ghalliday]

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• This change alters the query API (existing queries will have to be recompiled)

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Testing:

[Copilot]

Pull request overview

This PR documents new configuration options for default index compression settings introduced in version 9.14.x of the platform. The documentation covers three configuration options (defaultIndexCompression, defaultInplaceCompression, and overrideIndexCompression) and provides examples for both containerized and bare-metal deployments.

Changes:

• Added documentation section explaining default index compression configuration options
• Included configuration examples for both containerized (Helm) and bare-metal deployments
• Noted differences between version 9.14.x and 10.0.x configuration syntax

[github-actions]

Jira Issue: https://hpccsystems.atlassian.net//browse/HPCC-35859

Jirabot Action Result:
Assigning user: gavin.halliday@lexisnexisrisk.com
Workflow Transition To: Merge Pending
Updated PR

[JamesDeFabia]

Good from my POV

[github-actions]

Jirabot Action Result:
Added fix version: 10.4.0
Workflow Transition: 'Resolve issue'