feat: replace LiteDB with Sqlite

- Replace LiteDB database engine with Sqlite
  Note: old databases will not be deleted
- Message duplication detection improvements
- Tolerate parse errors in release builds, log them

ChatTwo/Code/ChatCode.cs

@@ -1,5 +1,3 @@
-using LiteDB;
-
 namespace ChatTwo.Code;
 
 internal class ChatCode
@@ -21,15 +19,6 @@ internal class ChatCode
         Target = SourceFrom(7);
     }
 
-    [BsonCtor]
-    public ChatCode(ushort raw, ChatType type, ChatSource source, ChatSource target)
-    {
-        Raw = raw;
-        Type = type;
-        Source = source;
-        Target = target;
-    }
-
     internal ChatType Parent() => Type switch
     {
         ChatType.Say => ChatType.Say,

ChatTwo/Code/ChatType.cs

@@ -1,7 +1,7 @@
 namespace ChatTwo.Code;
 
 [System.Diagnostics.CodeAnalysis.SuppressMessage("Design", "CA1028:Enum Storage should be Int32")]
-internal enum ChatType : ushort
+public enum ChatType : ushort
 {
     Debug = 1,
     Urgent = 2,