- Added no-op setters to process.stdout properties in test geometry stubs.
- Prevented potential errors when code under test attempts to reassign stdout dimensions.
- Sanitized newlines from agent hub display text to ensure single-line output.
- Enforced line clamping during render to prevent terminal wrapping.
- Added test coverage to verify output truncation and newline removal.
- Added a helper that renders hub output and extracts ordered agent IDs.
- Replaced positional string assertions with explicit row-order expectations.
- Awaited asynchronous theme initialization in test setup.
- Captured each row's initial position in AgentHubOverlayComponent on first refresh and reused it on later refreshes.
- Changed subsequent sorting to prioritize status then prior row position, so activity updates no longer reordered visible rows.
- Added a regression test that verifies row ordering stays stable when activity changes and new agents append at the end.
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