fix(barrier): broadcast actor info to newly added node

[wenym1]

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What's changed and what's your intention?

Root cause of #19536.
Resolve #19884

Previously for newly added node, we won't broadcast the existing actor info to the node. When actors that are spawned later on this node try to get the actor info in other nodes, it will get the actor id not found error.

In this PR, we fix this by including all the existing actor infos in the initial request for the newly add node.

By the way, we also change the way to broadcast inflight subscription infos in recovery. Previously in recovery, we include the existing subscription infos in the initial request to CN. It works in global recovery, but in per-database recovery, we will not send this initial request, and then the existing subscriptions will be missed in the recovered database. In this PR, we change to broadcast the existing subscription infos in the initial inject barrier request. In this way, we can also broadcast the existing subscriptions in per-database recovery.

Checklist

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Release note