feat: some refactoring and /v1/api/provider/nex_token/@me

Cargo.lock

@@ -1507,6 +1507,15 @@ version = "2.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "469fb0b9cefa57e3ef31275ee7cacb78f2fdca44e4765491884a2b119d4eb130"
 
+[[package]]
+name = "ipnetwork"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf466541e9d546596ee94f9f69590f89473455f88372423e0008fc1a7daf100e"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "is-terminal"
 version = "0.4.15"
@@ -2760,6 +2769,7 @@ dependencies = [
  "hashbrown 0.15.2",
  "hashlink",
  "indexmap 2.7.1",
+ "ipnetwork",
  "log",
  "memchr",
  "native-tls",
@@ -2879,6 +2889,7 @@ dependencies = [
  "hkdf",
  "hmac",
  "home",
+ "ipnetwork",
  "itoa",
  "log",
  "md-5",