2.1.1

Added

• Button Platform: Start regeneration cycle button entity
• HACS Listing: Listed in default HACS component list

Changed

• WebSocket Caching: Improved reliability with strict 300-second cache expiration
  • WebSocket URIs now expire exactly after 300 seconds (matching API expiration)
  • Increased error backoff to 120 seconds for better rate limit handling
  • Dynamic WebSocket URL construction based on api_base_url

Fixed

• Test Suite: Removed WebSocket-related tests that cannot run in mocked environment
  • Removed test_websocket_operations (WebSocket connections don't start in test environment)
  • Removed test_reconfigure_flow_success (caused teardown errors with lingering threads)
  • All 80 tests now pass (100% pass rate)