improve direct connector (#685)

* support ipv6 stun
* show interface and public ip in cli node info
* direct conn should keep trying unless already direct connected
* peer should use conn with smallest latency
* deprecate ipv6_listener, use -l instead

Cargo.lock

@@ -817,6 +817,15 @@ dependencies = [
  "syn 2.0.87",
 ]
 
+[[package]]
+name = "bounded_join_set"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae18fd8f4a623bcf416b5bc8f1e0905534d9911597ed17cc57ab9b6eed65454d"
+dependencies = [
+ "tokio",
+]
+
 [[package]]
 name = "brotli"
 version = "7.0.0"
@@ -1881,6 +1890,7 @@ dependencies = [
  "base64 0.22.1",
  "bitflags 2.8.0",
  "boringtun-easytier",
+ "bounded_join_set",
  "bytecodec",
  "byteorder",
  "bytes",
@@ -8135,9 +8145,9 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.39.2"
+version = "1.44.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "daa4fb1bc778bd6f04cbfc4bb2d06a7396a8f299dc33ea1900cedaa316f467b1"
+checksum = "f382da615b842244d4b8738c82ed1275e6c5dd90c459a30941cd07080b06c91a"
 dependencies = [
  "backtrace",
  "bytes",
@@ -8153,9 +8163,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-macros"
-version = "2.4.0"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
+checksum = "6e06d43f1345a3bcd39f6a56dbb7dcab2ba47e68e8ac134855e7e2bdbaf8cab8"
 dependencies = [
  "proc-macro2",
  "quote",