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b214d18f28
Cache the Home Assistant Core configuration (components list) when Core reaches RUNNING state in _block_till_run(), and clear it on stop or before restart. This avoids repeated API/WebSocket calls to fetch the config on every use. The cached config is used in two places: - Update verification: checks frontend component is loaded after update using cached config instead of a separate API call, with fallback to error state if cache is unavailable. - Hardware events: checks USB component availability using cached config instead of a WebSocket round-trip on every device event. Additionally, adds ensure_started() to HomeAssistantCore which validates API readiness and populates cached state when Core is already running. This is called on Supervisor restart to close a gap where Supervisor had no health validation of Core and hardware events were silently dropped because the config cache was never populated. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>