App 2.19.7: meter AC charging too, while the app runs

A session runs whenever power flows into the pack, AC or DC; gaps the
head unit slept through are dropped as before. Dashboard and server
texts no longer say DC only.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhzAVaUyqcw5PkGjz4mWW6

app/src/main/java/com/evsuite/abrp/ChargeSessionTracker.java

@@ -14,9 +14,10 @@ import java.util.List;
 import java.util.UUID;
 
 /**
- * Persistent DC charging session meter and offline upload queue.
+ * Persistent charging session meter (AC and DC) and offline upload queue.
  *
- * Only DC is metered — see {@link ChargingState#DC_MIN_KW}. Energy and duration are
+ * A session is metered while power flows in — see {@link ChargingState#isMeteredCharging} —
+ * and only while the app runs: gaps are dropped, not billed. Energy and duration are
  * integrated on {@link SystemClock#elapsedRealtime()} for the same reason
  * {@link ConsumptionTracker} is: the head unit's wall clock jumps when it picks up GPS or
  * NTP time, and one forward jump mid-charge used to invent both kWh and hours. Wall-clock
@@ -104,7 +105,7 @@ final class ChargeSessionTracker {
         long elapsed = SystemClock.elapsedRealtime();
         Float power = snapshot.getBatteryPowerKw();
         Float soc = snapshot.getSocPercent();
-        boolean charging = ChargingState.isDcCharging(snapshot.getChargingStatus(),
+        boolean charging = ChargingState.isMeteredCharging(snapshot.getChargingStatus(),
                 snapshot.getChargePortConnected(), power, snapshot.getSpeedKmh());
 
         if (charging) {
@@ -237,7 +238,7 @@ final class ChargeSessionTracker {
             }
             if (soc != null) lastSoc = soc;
             if (power != null) lastPower = power;
-            if (power != null && -power >= ChargingState.DC_MIN_KW &&
+            if (power != null && power < ChargingState.CHARGING_POWER_KW &&
                     (points.isEmpty() || nowMs - points.get(points.size() - 1).timestampMs >= curveIntervalMs)) {
                 points.add(new Point(nowMs, soc, Math.abs(power)));
                 decimateIfFull();