fix(cooling): show per-group pressures in miners C1 supply/return tables

[paragmore]

The Cooling → Miners Circuit 1 page (moria-app-ui CircuitMiner) builds three tables per line:

• SUPPLY ← line.supply.sensors[]
• RETURN ← line.return.sensors[]
• ΔP ← line.differential_pressure[]

buildMinersCircuit1View only put [temp, flow] in supply.sensors and [return temp] in return.sensors, so the per-group PT-… · Pressure · Group N rows never appeared in the SUPPLY/RETURN tables — the PTs existed only under differential_pressure, which the FE uses solely for the ΔP table.

This:

• appends each group's supply/return PT to supply.sensors / return.sensors (type: "Pressure · Group N", reading = supply/return pressure), after the temp/flow rows.
• numbers groups absolutely (line 1 → Groups 1-8, line 2 → Groups 9-16), since the FE prints entry.group directly on the ΔP rows.
• keeps the unit on per-group readings even when a PT is unreadable ({ value: null, unit }), consistent with the units-everywhere contract.