v2.1.0-alpha.529

Changes

fix: resolve lint errors in composed endpoint tests and cover formatting (f63bd492)
test: add composed endpoint and server-mode vacuum device tests (d16993e8)
refactor: deduplicate PowerSourceServer battery callback into DefaultPowerSourceServer (ddc0020c)
fix: guard DiagnosticService against undefined aggregator in server-mode bridges (fa9b11ea)

⚠️ This is an alpha release - use at your own risk!