[BUG] Desktop randomly marks running turn as interrupted (AbortError: Aborted, no retry, no UI error)

Description

During normal Desktop usage on Windows, a running turn is randomly marked as "interrupted" even though I never pressed ESC or submitted anything. No error is shown in the UI — the turn just silently stops. Sending a new message right after works fine, and the session context is intact (no compaction/reset).

This matches the "Session Interrupted Without Retry" pattern described in #26180 (and #29589, which was deleted along with its author's account): a transient stream drop aborts the fiber, no retry happens, and the user sees a silently stopped turn.

Log evidence from ~/.local/share/opencode/log/opencode.log — two occurrences today on a live session, no user interrupt:

timestamp=2026-09-13T02:30:20.729Z level=ERROR run=312b5db8 message=process session.id=ses_f67e8f861ffet3LexvzrhZJB0V messageID=msg_09899f0f7001cZ4a7IFlBx4Fr0 error=Aborted stack="AbortError: Aborted
    at new DOMException (node:internal/per_context/domexception:76:18)
    at Array.<anonymous> (file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:489828:27)
    at ~effect/Effect/successCont (file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:7896:29)
    at ~effect/Effect/evaluate (file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:7909:25)
    at FiberImpl.runLoop (file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:7716:112)
    at FiberImpl.evaluate (file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:7686:26)
    at file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:7854:19
    at file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:6602:55
    at process.processTicksAndRejections (node:internal/process/task_queues:104:5)"

timestamp=2026-09-13T15:23:00.426Z level=ERROR run=6096202d message=process session.id=ses_f67e8f861ffet3LexvzrhZJB0V messageID=msg_09b5d2f96001cqCcVOTuegoCGR error=Aborted stack="AbortError: Aborted
    at new DOMException (node:internal/per_context/domexception:76:18)
    at Array.<anonymous> (file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:489828:27)
    at Generator.next (<anonymous>)
    at ~effect/Effect/successCont (file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:7896:29)
    at ~effect/Effect/evaluate (file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:7909:25)
    at FiberImpl.runLoop (file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:7716:112)
    at FiberImpl.evaluate (file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:7686:26)
    at file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:7854:19
    at file:///C:/Users/<redacted>/AppData/Local/Programs/@opencode-aidesktop/resources/app.asar/out/main/chunks/node-BIz0dqH1.js:6602:55
    at process.processTicksAndRejections (node:internal/process/task_queues:104:5)"

Expected: transient provider/network stream failures should be retried automatically, or at least surfaced as a visible recoverable error instead of a silent "interrupted" state.

Plugins

none

OpenCode version

1.18.30 (Desktop, Windows)

Steps to reproduce

1. Start a session in OpenCode Desktop and give the agent a task
2. Occasionally (randomly), the turn stops and shows as interrupted with no error in the UI
3. No ESC pressed, no message submitted at that moment
4. Sending a new message resumes work normally

Screenshot and/or share link

Operating System

Windows 11

Terminal

N/A - OpenCode Desktop