feat(net): #13 read OptionFlags + Options1 after enchantments

First step of the PD trailer walk. Wraps trailer reads in their own
try/catch so a malformed trailer does not null out the upstream
attribute/skill/spell/enchantment data we already extracted.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/AcDream.Core.Net.Tests/PlayerDescriptionParserTests.cs

@@ -334,4 +334,33 @@ public sealed class PlayerDescriptionParserTests
         Assert.Equal(2.0f, parsed.Value.Spells[1234u]);
         Assert.Equal(2.0f, parsed.Value.Spells[5678u]);
     }
+
+    [Fact]
+    public void TryParse_TrailerOptionFlagsAndOptions1_AreReadAfterEnchantments()
+    {
+        // ATTRIBUTE | ENCHANTMENT vector flag; empty enchantment mask (0).
+        // After mask, trailer adds u32 option_flags + u32 options1.
+        var sb = new MemoryStream();
+        using var writer = new BinaryWriter(sb);
+        writer.Write(0u);              // propertyFlags
+        writer.Write(0x52u);            // weenieType
+        writer.Write(0x201u);           // ATTRIBUTE | ENCHANTMENT
+        writer.Write(1u);               // has_health
+        writer.Write(0u);               // empty attribute_flags
+
+        writer.Write(0u);               // EnchantmentMask = empty
+
+        // Trailer header: option_flags + options1
+        writer.Write(0u);               // option_flags = None — no further sections
+        writer.Write(0xDEADBEEFu);      // options1 sentinel
+
+        // No more bytes — spellbook_filters is optional (defaults to 0).
+        var parsed = PlayerDescriptionParser.TryParse(sb.ToArray());
+
+        Assert.NotNull(parsed);
+        Assert.Equal(PlayerDescriptionParser.CharacterOptionDataFlag.None, parsed!.Value.OptionFlags);
+        Assert.Equal(0xDEADBEEFu, parsed.Value.Options1);
+        Assert.Empty(parsed.Value.Shortcuts);
+        Assert.Empty(parsed.Value.Inventory);
+    }
 }