UX-54 scenarios keep the gate they were written for (cycle cost 0.15 with a forecast)

With master merged in (TARIFF-24), a forecast replaces the 1.5x widening, so
the shipped cost 0.10 is now the whole gap with a forecast. test_ux54.py's
modes-on scenarios were written for 0.15 and 21 of its checks failed on
release/1.0 + master (they pass on release/1.0 alone). They now set the cost
to 0.15 where they have a forecast: the same gate as before. Scenarios with no
forecast (nofc, stale) and modes off keep 0.10, widened as before.

Co-Authored-By: Claude <noreply@anthropic.com>

goodwe_controller/tools/ux54_scenarios.py

@@ -247,6 +247,12 @@ def make(name, now, *, soc=(55.0, 40.0), modes=("solar_first",
         tomorrow = False
     if name == "sunny":
         sun_today, sun_tomorrow = 40.0, 40.0
+    if name not in ("nofc", "off", "stale") and \
+            opts.get("battery_modes_enabled"):
+        # TARIFF-24: with a forecast the gap needed is the cycle cost, not
+        # 1.5 x it. These scenarios were written for the old gate (0.15 at
+        # the shipped 0.10), so they keep it: the cost is 0.15.
+        opts["cycle_cost_threshold_eur"] = 0.15
     c = Controller(opts, Hass(), Store(), Pub(), stop=asyncio.Event())
     c.auto = True
     for i, inv in enumerate(c.inverters):