App 2.13.0: tyre pressures in bar; 5-minute average power

Tyre pressures show in bar by default; Settings → Display offers kPa
and psi as well. Display only: the car reports kPa and the server keeps
storing kPa.

A "Power, 5-min average" card under Power: the time-weighted mean
battery power over the last five minutes, standing included, from the
same samples as the 5-minute range.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QLJfZQZeAKAwSqViTmLzki

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

@@ -0,0 +1,40 @@
+package com.evsuite.abrp;
+
+import java.util.Locale;
+
+/**
+ * The unit tyre pressures are shown in. The car reports kPa; this only changes the display.
+ * Android-free, unit-tested.
+ */
+enum PressureUnit {
+    BAR("bar", "%.1f bar", 0.01),
+    KPA("kPa", "%.0f kPa", 1.0),
+    PSI("psi", "%.1f psi", 0.145038);
+
+    static final String PREF_KEY = "tire_pressure_unit";
+    static final PressureUnit DEFAULT = BAR;
+
+    final String label;
+    private final String pattern;
+    private final double perKpa;
+
+    PressureUnit(String label, String pattern, double perKpa) {
+        this.label = label;
+        this.pattern = pattern;
+        this.perKpa = perKpa;
+    }
+
+    /** A reading in this unit, or a dash for none. */
+    String format(Float kpa) {
+        if (kpa == null || kpa.isNaN() || kpa.isInfinite()) return "—";
+        return String.format(Locale.US, pattern, kpa * perKpa);
+    }
+
+    /** The stored choice; anything unknown falls back to bar. */
+    static PressureUnit fromPref(String name) {
+        for (PressureUnit u : values()) {
+            if (u.name().equals(name)) return u;
+        }
+        return DEFAULT;
+    }
+}