v2026.07.31-beta12

Gargoyle firmware built from ispyisail/gargoyle@1a1d4bf (ref: master, channel: testing)

Changes since v2026.07.29-beta11

• openvpn, share-users: install the keep.d fragments PR #118 added
• targets: select wifi-schedule/email-notifications on vnet-wifi profile
• wireguard: also defer the wizard save-reload until the user is done
• wireguard: fix wizard Download button unusable behind wait overlay
• wireguard: add Guest Party Mode
• restrictions: add a Family Time Controls Wizard
• wireguard: add a Remote Access Setup Wizard
• wireguard, qr-code: share one WireGuard client-config generator
• qr-code: push DNS and route the wireguard subnet in client configs
• wireguard: push DNS to split-tunnel clients
• backup: add diagnostic report generator for forum support