rdmbair15m5-changelog-20260915-2225-tyrell-tasksscreen-async-test-stabilization

One-line summary: Stabilized TasksScreenTests.testAdversarialDaemonRpcFailureHandling in apps/Tyrell by extending async polling window under parallel compilation load.

Scope

• Hosts: rdmbair15m5 (local test runner).
• Apps: apps/Tyrell.

Exact Files Touched

• apps/Tyrell/Tests/TyrellCoreTests/TasksScreenTests.swift

Rationale & Verification

• Under concurrent multi-core compile load across apps, the previous 400ms polling ceiling (20x20ms) was prone to timing out before the async error status message settled.
• Expanded polling window to 2.0s (100x20ms) with early break on completion.
• Eliminates flaky test failures on loaded machines while preserving rapid sub-50ms execution on idle runs.

How to Undo

• Revert change in apps/Tyrell/Tests/TyrellCoreTests/TasksScreenTests.swift.

Outstanding Owner Actions

• None. Continuous overnight test sweeps proceed autonomously.