* fix(remote): unthrottle host renderer while serving a paired client
A paired desktop host left in the background could not open or close
agent sessions for its remote/relay client: the action stalled and
eventually failed with the host-side "Timed out waiting for terminal
surface after creation" (10s) error, while an already-live terminal's
keystrokes stayed fast.
Root cause: creating/closing a session routes through the host
renderer's setTimeout-coalesced graph sync to publish the terminal
surface, but the host window runs with Electron background throttling
(the hidden-window default, reaffirmed on macOS). When the window is
backgrounded/occluded, those renderer timers are throttled to a crawl
and the surface publication misses the 10s deadline. Live keystrokes are
unaffected because PTY I/O flows through the main process, never the
renderer.
Keep the authoritative renderer unthrottled while at least one remote
client is connected and restore the throttled power-saving default once
the last one disconnects. Connect/disconnect are driven from the shared
MobileSocketWiring onReady/onClose, so both direct-WS and cloud-relay
clients are covered; headless serve has no window and is a safe no-op.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* refactor(remote): tidy renderer-throttle comment and test per review
Address automated review nits on #11581:
- Trim the module-level rationale comment to the non-obvious contract,
matching the repo's concise-comment guideline.
- Drop the dead `detachedThrottle` variable from the reapply test; the
detached-target scenario is already covered by the lazy-resolution
test, so the case now asserts only what it exercises.
No behavior change.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
* fix(remote): scope paired terminal publication throttling
Keep headed paired terminal creation and close renderer-owned so host inventory, input routing, ACK recovery, and cleanup retain the established lifecycle. Hold a reference-counted background-throttle lease only while the renderer publishes a paired operation, and epoch-fence async resolution so renderer reloads reject before any request or PTY spawn. Preserve headless main ownership and prevent paired clients from falling back to a local terminal.
* test(e2e): verify minimized host terminal repaint
* fix(remote): preserve paired terminal inventory through graph gaps
---------
Co-authored-by: fanyunqian.1 <fanyunqian.1@bytedance.com>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-authored-by: OrcaWin <293788423+OrcaWin@users.noreply.github.com>
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