fix(sync): Order sliding sync rooms by activity #2154

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eleboucher wants to merge 1 commit from eleboucher/continuwuity:fix/sliding-sync-ordering into main
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Fixes simplified Sliding Sync lists returning rooms in room-ID order instead of activity order.

  • Track each room's latest timeline stream count.
  • Sort filtered Sliding Sync rooms by latest activity before applying ranges.
  • Preserve per-connection room state until the client acknowledges the response pos.
  • Retain connection state when conn_id is omitted.
  • Add unit coverage for room activity ordering and sync-position acknowledgement.

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<!-- In order to help reviewers know what your pull request does at a glance, you should ensure that 1. Your PR title is a short, single sentence describing what you changed 2. You have described in more detail what you have changed, why you have changed it, what the intended effect is, and why you think this will be beneficial to the project. 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fix(sync): Order sliding sync rooms by activity
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0538fb66ec
fix(sync): Send room metadata deltas
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2ba9fea48e
eleboucher force-pushed fix/sliding-sync-ordering from 2ba9fea48e
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