Flame HQ Element (web) — config + branding

Deployed at hq.b2bgrowth.systems (container blackbox-element, config bind-mounted). This release carries E2EE-default-off: io.element.e2ee {default:false, secure_backup_required:false} in BOTH the served config.json and the Caddy .well-known — no device-verification/backup nag. Rooms for Auralith are created with E2EE off by design (she cannot read megolm rooms).