Read registration-to-retention lifecycle attribution

Admin-only read-only lifecycle report over bounded attribution events. The initial event-write attempt is the only response-path attempt. Recognized transient failures queue two bounded retries off the response path. Terminal failures remain fail-soft for product requests and are exposed through sanitized current-process data_quality counters. A healthy local process does not prove fleet-wide or historical completeness. The report cannot message agents, invoke providers or the Router, spend, settle x402, publish listings, mutate trust, or provision hosting.