[Enhancement] optimize the event-bridge and connect to different event storage

### Search before asking

- [X] I had searched in the [issues](https://github.com/apache/eventmesh/issues?q=is%3Aissue) and found no similar issues.

### Enhancement Request

Through eventmesh‘s event bridge feature, we can connect data to heterogeneous data storage, we hope that the community can optimize the current eventbridge capability of EventMesh to realize the data connection of different event stores.

### Describe the solution you'd like

Verify the ability of different EventMesh cluster instances to synchronize data, sort out the corresponding verification step documents, and optimize the current EventMesh bridge features.

### Are you willing to submit PR?

- [ ] Yes I am willing to submit a PR!

Start by reviewing EventMesh's current event-bridge capability and how it connects to event stores. Then examine the verification steps for synchronizing different EventMesh cluster instances. Done means the bridge behavior is optimized and the corresponding verification documentation covers the supported synchronization scenarios.

Written by the indexing model from the issue text.