Kept observing a status-line usage fetch after the startup timeout so late successful reports still refresh the quota segment instead of being hidden behind the timeout backoff.\n\nFixes #3057
Deferred the status-line quota refresh off the render path and raced it against a short startup timeout so slow Anthropic usage lookups cannot pin interactive startup. Added regression coverage for non-synchronous refresh startup and timeout backoff.\n\nFixes #3057