v2.1.0-alpha.529

Changes

• fix: resolve lint errors in composed endpoint tests and cover formatting (f63bd49)
• test: add composed endpoint and server-mode vacuum device tests (d16993e)
• refactor: deduplicate PowerSourceServer battery callback into DefaultPowerSourceServer (ddc0020)
• fix: guard DiagnosticService against undefined aggregator in server-mode bridges (fa9b11e)

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