Add retries, repeated runs, and flaky-test reporting

CHANGELOG.mdmodified+6-0

Changes to CHANGELOG.md

		⋯15 linesShow the 15 lines above this hunk@@ -16,6 +16,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
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17	17	## [Unreleased]
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	19	+### Added
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	21	+- Retry failed tests and discovered test files with complete attempt history.
	22	+- Repeat mode for stress-running selected tests.
	23	+- Flaky outcomes, optional fail-on-flaky exit behavior, and JSON/JUnit attempt data.
	24	+
19	25	### Planned Features
20	26
21	27	- Snapshot testing