PowerBus.Step billed every equipped IPowerConsumer's request unconditionally
and admitted a reactor on Item.Online alone, but Entity.Update only ever runs
a behaviour's Execute when the item is Active (Enabled && Online). A consumer
the player switched off never executes and never spends anything, yet was
still billed, starving live consumers and draining capacitors for nobody. A
reactor switched off stayed Online and kept generating even though
Reactor.Execute (which produces the heat receipt) never ran for it: free,
heat-free power.
Both directions now gate on the same predicate the rest of Entity uses:
item.Active.Value.
Pinned in tests/Aetheria.Shared.Tests/PowerBusTests.cs:
DisabledConsumerContributesNoDemand and DisabledReactorGeneratesNoPower --
both fail under the reverted (Online-only / unconditional) mutation.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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