Sync progress flushes#492

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tony wants to merge 7 commits intomasterfrom

sync-progress-flushes

Commits on Jun 20, 2025

tests(run) Add tests for newline behavior + streaming behavior (recreate broken state)
tony
committed
chore(run) Note subprocess issue with streaming
tony
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tests(run): Add comprehensive tests for output streaming and flushing behavior

tony
and
claude
committed
fix(run): Restore bytes mode to preserve carriage returns for in-place progress updates

tony
and
claude
committed
tests(run): Update tests to verify correct streaming behavior instead of broken fragmentation

tony
and
claude
committed
_internal/run(fix[type-safety]): Add type annotations and null checks

tony
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claude
committed
tests/_internal/test_run(fix[line-length]): Fix E501 line length violations

tony
and
claude
committed