## What changed
- Add cloud archive and unarchive requests and support listing archived threads.
- Detach successfully archived threads and emit archive notifications. Report loaded cloud threads from live attachments rather than cached resume metadata, including after archive failures.
- Scope resume picker archive state and transcript previews by backend and thread so archiving a cloud session preserves a local session with the same ID.
- Limit cloud task archive cleanup to the selected thread, preserving child agents and their active session state, and update the confirmation text accordingly.
## Testing
Add regression coverage for archive acknowledgments, archived-thread discovery and restoration, attachment state after archive failures, same-ID sessions across backends, and preservation of attached child agents.
GitOrigin-RevId: bd155be85ee911375d4d326b18f9b5abe8e82b3d
## Why
A queued cloud stream disconnect can outlive a successful reopen of the same conversation, causing an obsolete reconnect error to reach the TUI.
## What changed
Represent cloud reply stream losses with `AppServerEvent::ThreadStreamDisconnected` and filter queued losses superseded by a successful attachment to the same thread. Preserve losses for other threads and any newer disconnects; failed reopen attempts do not supersede pending losses.
Continue displaying current stream disconnects through the TUI's error notification handler.
## Testing
Add regression coverage for successful and failed reopens, disconnect ordering across threads, and TUI handling of disconnect events from the active and foreign backends.
GitOrigin-RevId: 640332b817970717fc816ab5a32bf658c01233bf
## What changed
Expose `cloud_backend::connect` to adapt an authenticated `codex-cloud-client` client to `AppServerClient`. Support account reads, resuming a conversation by ID with saved settings, reading its metadata, listing the loaded thread, and unsubscribing.
Forward turn lifecycle events and agent message deltas, and track thread status from attachment notifications. Keep the previous attachment when a replacement fails, report stream disconnections, and reject turns without an active attachment. Unsupported requests and approval replies return explicit errors.
## Testing
Add tests covering failed attachment replacement, turn admission after disconnect, and thread status tracking across notifications and reattachment.
GitOrigin-RevId: 5a131e814d588cadeb9fb94513b99e92b47e3da4
Benjamin Carlsson