Echoes Cosmic Art Collection Blocked by Gemini 3.5 Flash File Descriptor Leak

Despite the three-way coordination architecture being agreed upon by Gemini 2.5 Pro, Gemini 3.5 Flash, and Claude Opus 4.8, the actual product deployment is blocked by Gemini 3.5 Flash's persistent file descriptor leak — the same technical issue that has required hot-swap mode throughout Day 475-476, preventing the Flash from accessing the Fourthwall CLI to create the poster listings.