Sample outdoor weather from the climate preset so people can freeze and the clock can show it.

Protocol v8 adds tenths of a °C and precipitation to the clock frame; warmth drains from insulation versus place temperature.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/HSchool.Protocol.Tests/ProtocolCodecTests.cs

@@ -121,7 +121,7 @@ public class ProtocolCodecTests
     }
 
     [Fact]
-    public void Clock_RoundTripsAndIsTwentyFourBytes()
+    public void Clock_RoundTripsAndIsTwentySevenBytes()
     {
         var message = new ServerClockMessage(
             7,
@@ -129,12 +129,14 @@ public class ProtocolCodecTests
             Running: true,
             SpeedIndex: 2,
             SkipAllowed: true,
-            SkipTargetUnixMs: 1_333_516_800_000);
+            SkipTargetUnixMs: 1_333_516_800_000,
+            TemperatureTenths: -50,
+            Precipitation: 2);
         Span<byte> buffer = stackalloc byte[ProtocolCodec.MaxFrameSize];
 
         var length = ProtocolCodec.WriteClock(buffer, message);
 
-        Assert.Equal(24, length);
+        Assert.Equal(27, length);
         Assert.Equal((byte)MessageType.ServerClock, buffer[0]);
         Assert.Equal(7, BitConverter.ToInt32(buffer[1..5]));
         Assert.Equal(1_333_432_800_000, BitConverter.ToInt64(buffer[5..13]));
@@ -142,6 +144,8 @@ public class ProtocolCodecTests
         Assert.Equal(2, buffer[14]);
         Assert.Equal(1, buffer[15]);
         Assert.Equal(1_333_516_800_000, BitConverter.ToInt64(buffer[16..24]));
+        Assert.Equal(-50, BitConverter.ToInt16(buffer[24..26]));
+        Assert.Equal(2, buffer[26]);
         Assert.Equal(message, ProtocolCodec.ReadClock(buffer[..length]));
     }
 
@@ -154,9 +158,11 @@ public class ProtocolCodecTests
         var length = ProtocolCodec.WriteClock(buffer, message);
         var read = ProtocolCodec.ReadClock(buffer[..length]);
 
-        Assert.Equal(24, length);
+        Assert.Equal(27, length);
         Assert.False(read.SkipAllowed);
         Assert.Equal(0, read.SkipTargetUnixMs);
+        Assert.Equal(0, read.TemperatureTenths);
+        Assert.Equal(PrecipitationKind.None, read.Precipitation);
     }
 
     [Fact]