MB-68541 Change ejection policy for ephemeral buckets

[ggray-cb]

This PR is an update to PR DOC-13339 change bucket eviction w/o restart (#3864) to cover the feature of being able to change ephemeral buckets ejection policies. This PR merges into that branch, so all you'll see here is the delta against the other PR's changes.

Preview URL:
https://preview.docs-test.couchbase.com/docs-server-MB-68541_Change_eviction_on_Ephemeral_buckets

You will need the Docs Team credentials on Confluence.

A list of the changes changes, with links to the preview:

• What's New entry for this feature.
• Change a Bucket’s Ejection Policy now explains how to change the ephemeral bucket's ejection policy. The instructions on changing the setting via the Web GUI also covers ephemeral buckets.
• Creating and Editing Buckets updated to explicitly mention ephemeral buckets when chaging the eviction policy (in the past this section just discussed changing it for buckets, withut differentiating Couchbase and ephemeral).
• Memory removed statement that you cannot chnage the ejection policy of ephemeral buckets.

[Copilot]

Pull Request Overview

This PR updates documentation to support the new feature allowing ephemeral bucket ejection policy changes without requiring a bucket restart. The changes expand on the previous PR to include ephemeral bucket capabilities.

• Added documentation for changing ephemeral bucket ejection policies via Web Console and REST API
• Updated existing pages to clarify that ephemeral buckets can now have their ejection policies changed
• Added new What's New entry for the ephemeral bucket ejection policy feature

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
preview/MB-68541_Change_eviction_on_Ephemeral_buckets.yml	Commented out cb-swagger source configuration
modules/rest-api/pages/rest-bucket-create.adoc	Updated to distinguish between ephemeral and Couchbase bucket ejection policy changes
modules/manage/pages/manage-buckets/change-ejection-policy.adoc	Major update adding ephemeral bucket sections and clarifying procedures
modules/manage/examples/change-ejection-policy.sh	Added REST API examples for ephemeral bucket ejection policy changes
modules/learn/pages/buckets-memory-and-storage/storage-settings.adoc	Updated to reflect that ejection policies can be changed after bucket creation
modules/learn/pages/buckets-memory-and-storage/memory.adoc	Removed restriction on changing ephemeral bucket ejection policies
modules/introduction/partials/new-features-80.adoc	Added What's New entry for the ephemeral bucket ejection policy feature

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