fix#15121
#### PR Dependency Tree
* **PR #15123** 👈
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[Charcoal](https://github.com/danerwilliams/charcoal)
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## Summary by CodeRabbit
* **Security Improvements**
* Enforced document-level `Doc.Read`/`Doc.Update` checks for key sync
websocket operations, including filtering workspace doc timestamp
results to only readable documents.
* Improved remote permission handling: once a remote denies access,
syncing stops for the affected document and retry behavior is
suppressed.
* **Improvements**
* `delete-doc` now relies on server acknowledgment and returns an
explicit `{ success: true }`.
* Websocket acknowledgment errors are now normalized for consistent
error details.
* **Tests**
* Expanded permission-denied and websocket error-handling coverage,
including timestamp filtering and no-retry behavior after permission
denial.
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#### PR Dependency Tree
* **PR #14348** 👈
This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)
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## Summary by CodeRabbit
* **New Features**
* Added a dedicated S3-compatible client package and expanded
S3-compatible storage config (endpoint, region, forcePathStyle,
requestTimeoutMs, minPartSize, presign options, sessionToken).
* Document sync now broadcasts batched/compressed doc updates for more
efficient real-time syncing.
* **Tests**
* New unit and benchmark tests for base64 utilities and S3 multipart
listing; updated storage-related tests to match new formats.
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We should not use async on `connect` and `disconnect`, for `WebSocketConnection` will never connect when offline.
We should handle the connection status of each storage in sync, using the `connection.waitForConnect`
This PR also puts the connection reference count on the `connect` and disconnect`
DarkSky
