9: Support percentage expressions in alarm targets

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/AlarmConfigurationParser.tjava

@@ -53,7 +53,7 @@ public final class AlarmConfigurationParser {
                 cursor.nextToken("direction").toUpperCase(Locale.ROOT)
         );
 
-        BigDecimal target = new BigDecimal(cursor.nextToken("target"));
+        BigDecimal target = parseTarget(cursor.nextToken("target"));
 
         AlarmTrigger trigger = AlarmTrigger.valueOf(
                 cursor.nextToken("trigger").toUpperCase(Locale.ROOT)
@@ -83,6 +83,11 @@ public final class AlarmConfigurationParser {
         );
     }
 
+    private static BigDecimal parseTarget(String targetStr) {
+        BigDecimal t = new BigDecimal(targetStr);
+        return t;
+    }
+
     private static final class Cursor {
         private Cursor(String line) {
             this.line = line;