Let explicit runtime kwargs override stale globals and drive the
blocking adapter through PyQt6's `QApplication.exec()`. Exercise
registry selection and normal/error completion with real runtimes.
Thread an explicit paper execution mode through chart startup and
subsequent symbol loads to EMS, retaining the live CLI default.
Reject invalid modes before initialization and await provider search
registration before publishing application readiness.
Also, correct the credential-free Kraken `Client(config={})` call.
The public-data run progressed past this constructor failure but
still exposed display readiness, Qt paint, and daemon teardown
defects. This is a prerequisite fix, not live-chart qualification;
the failing opt-in reproducer remains outside this boundary.
Retain the combined session provenance, including failed live-run
evidence. Its orphan report predates the later human-authorized
SIGINT cleanup, which stopped the exact remaining paper actor.
Prompt-IO: ai/prompt-io/opencode/20260908T215045Z_1a2d4893_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-6-astra` (`openai`))
Factor nonblocking `start_qtractor()` from the blocking Qt-loop
adapter and expose guest readiness, completion, outcome, and owned
cancellation through `QtractorSession`.
Replace `MainWindow.closeEvent()` process-wide `SIGINT` with the
session shutdown callback. Publish readiness after `_async_main()`
enters all startup scopes, then restore shared Qt state and globals
after guest completion.
Add a headless regression which starts and closes two real Tractor
runtimes under one pytest-owned `QApplication`.
Prompt-IO: ai/prompt-io/opencode/20260903T205404Z_aadfd1cf_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
Gud Boi