Pass E — Light desk restyle to 2a two-clocks panel; energy ‘not a bill’ line

LANDED 2026-09-07 on feat/dashboard-v2 (uncommitted, not hotpatched): LightPage restyled — eyebrow/headline/tags, mission-line banners, tone-bordered tent Panels topped by the 2a clock block (STATE DARK/LIT · ON IN, 24h rail, lamp + ‘not a bill’ energy line), all existing controls kept, chips → square tags. New: FIXTURES panel from /spaces (nameplate watts, duty source) and PPFD AT CANOPY from the SF1000 calibration steps (honest slot when uncalibrated). Recipe library / spectrum / PPFD map stay gated (no hardware). Verify on the Pi + phone.