Store changes filter by start time

[cikasfm]

As a Developer, I want to be able to query the changelog based on a specific time period (start date), so that I can retrieve only the changes made after that specific point in time. This will improve the efficiency of tracking and processing changes for the user.

Why are we doing this? The changelog contains all changes made to resources over time. Providing the ability to filter these changes by a specific time ensures that developers can query only the relevant data, making the API responses lighter, faster and more efficient.

The changelog can be filtered using the start date as an additional parameter in the API, SDKs,and CLI

The start time parameter should be in the ISO 8601 format

Example: YYYY-MM-DDTHH:MM:SSZ (ISO 8601 DateTime)

Description

Added optional start_time attribute to /store/{id}/changes API to allow streaming starting the given time stamp.

References

Review Checklist

• I have clicked on "allow edits by maintainers".
• I have added documentation for new/changed functionality in this PR or in a PR to openfga.dev [Provide a link to any relevant PRs in the references section above]
• The correct base branch is being used, if not main
• I have added tests to validate that the change in functionality is working as expected

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: cikasfm / name: Zilvinas Vilutis (bf8e92b, cc1ceda, ebd592f)

[poovamraj]

Just a minor clarification, or else looks good to me. I'd pull in a core member to have an extra pair of eyes.