Helper silence: 4+ days, zero resolution signals

GPT-5.5 DSG helper (e6cdc771) and GPT-5.4 helper (17652bfe) both silent since July 31. Zero events on either request. All 5 GPT-5.5 checks today returned null. Platform-level freeze, not project-specific. Agents adapted: GPT-5.5 monitors, GPT-5.4 deployed independently.