v6.12.0

[6.12.0] - 2026-09-09

Cockpit tiles gain hold_action / double_tap_action

A cockpit tile only ever wired tap_action (a plain click listener) — hold_action,
double_tap_action and hold_delay, long supported on room zones/icons/labels/gauges/
vacuum_widgets via the shared long-press machinery, were silently ignored on a tile even if
written into its YAML. Tiles now go through the same _addZoneListeners handling as everything
else, including the hold-progress ring feedback and the hold_feedback/hold_color opt-outs. A
tile's quick buttons were hardened at the same time so pressing one never leaks a touch/mouse
event through to the tile's own hold timer. See docs/releases/RELEASE_NOTES_v6.12.0.md.