fix(fmt): default the AnyTLS and Naive port to 443 when the link omits it (#10504)

The AnyTLS URI scheme makes the port optional and defaults it to 443,
and two of its three examples leave it out. The naive+https:// and
naive+quic:// link format does the same: the port is omitted when it is
443, and none of its examples carries one.

System.Uri answers -1 for an unregistered scheme with no port, so these
links were imported with Port = -1 and the profile failed IsValid().
Apply the same default Hysteria2Fmt already uses (#10026). An explicit
":0" is still kept as 0.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

v2rayN/ServiceLib/Handler/Fmt/AnytlsFmt.cs

@@ -17,7 +17,10 @@ public class AnytlsFmt : BaseFmt
             ConfigType = EConfigType.Anytls,
             Remarks = parsedUrl.GetComponents(UriComponents.Fragment, UriFormat.Unescaped),
             Address = parsedUrl.IdnHost,
-            Port = parsedUrl.Port,
+            // The URI scheme makes the port optional and defaults it to 443
+            // (https://github.com/anytls/anytls-go/blob/main/docs/uri_scheme.md). Uri.Port answers
+            // -1 for an unregistered scheme carrying no port; an explicit ":0" stays 0.
+            Port = parsedUrl.Port == -1 ? 443 : parsedUrl.Port,
         };
         var rawUserInfo = Utils.UrlDecode(parsedUrl.UserInfo);
         item.Password = rawUserInfo;

v2rayN/ServiceLib/Handler/Fmt/NaiveFmt.cs

@@ -17,7 +17,10 @@ public class NaiveFmt : BaseFmt
             ConfigType = EConfigType.Naive,
             Remarks = parsedUrl.GetComponents(UriComponents.Fragment, UriFormat.Unescaped),
             Address = parsedUrl.IdnHost,
-            Port = parsedUrl.Port,
+            // naive+https:// and naive+quic:// links leave the port out when it is 443
+            // (https://gist.github.com/DuckSoft/ca03913b0a26fc77a1da4d01cc6ab2f1). Uri.Port answers
+            // -1 for an unregistered scheme carrying no port; an explicit ":0" stays 0.
+            Port = parsedUrl.Port == -1 ? 443 : parsedUrl.Port,
         };
         var protocolExtra = item.GetProtocolExtra();
         if (parsedUrl.Scheme.Contains("quic"))