10x10 Sports Squares - Pool

This architecture release moves to platform-only GraphQL with one WebSocket for faster loading, fixes live scores, improves account and friends reliability, and resolves Host Pro billing issues. It includes guarded sign-in restoration and account-isolated Host state. - Render approved NFL helmet third-color bold stripes from optional GraphQL palette tertiary colors, retaining two-color payload compatibility and football outlines (#1071). - Fix Host Center rejecting valid read-only/locked responses after Host Pro access expires; keep writes denied without effective access and preserve malformed-grant rejection. - Add Contact-only encrypted support-log export using the pinned RSA-OAEP-256/A256GCM public key, encrypted with iOS CryptoKit/Security and Android JCA APIs. - Keep exported diagnostics bounded and allowlisted; record safe lifecycle/session and Host GraphQL stage outcomes without exporting identities, payloads, or raw errors. - Remove raw Talker/debug log export and sanitize Crashlytics classifications. - Fence retained Host workspaces, capability results, and cached profiles by the active account/session; preserve runtime credentials on profile fallback. - Keep local detailed debug logs in a bounded in-memory ring only; delete legacy persisted detailed-log boxes and keys, and clear the ring when accounts change, on sign-out, or on opt-out.