Review follow-up (Opus + /simplify) on the previous commit:
- power_energy_kwh/energy_saved_kwh/energy_last_month_kwh/
energy_this_month_kwh used a plain `field in rep` exists_fn, unlike their
siblings power_watts/energy_kwh in the same capability. Per
entity._is_included, an explicit exists_fn bypasses the stub carve-out
entirely -- an empty {} rep at platform setup (device/0 returned a
not-yet-fetched stub) would permanently drop these entities for the
session instead of picking them up once a sub-poll populates the
resource. Restore the same `not rep or ...` guard used above.
- fridge._flex_zone_current/_flex_zone_write independently rebuilt the same
supportedOptions set; factor into _flex_zone_supported.
- note in a comment that the flex-zone match assumes at most one
modes/supportedOptions overlap (true on every dump seen); add the
missing negative assertion that dry_level self-gates off on a plain
washer (was only positively asserted on the combo fixture).
Marc Billow
43542b146f