add client data cache for ip and username

Cargo.lock

@@ -298,6 +298,9 @@ name = "bitflags"
 version = "2.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "812e12b5285cc515a9c72a5c1d3b6d46a19dac5acfef5265968c166106e31dd3"
+dependencies = [
+ "serde_core",
+]
 
 [[package]]
 name = "bitstream-io"
@@ -1949,6 +1952,7 @@ dependencies = [
  "pollster",
  "quinn",
  "rcgen",
+ "ron",
  "tokio",
  "tracing",
  "wgpu",
@@ -2557,6 +2561,20 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "ron"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd490c5b18261893f14449cbd28cb9c0b637aebf161cd77900bfdedaff21ec32"
+dependencies = [
+ "bitflags 2.10.0",
+ "once_cell",
+ "serde",
+ "serde_derive",
+ "typeid",
+ "unicode-ident",
+]
+
 [[package]]
 name = "roxmltree"
 version = "0.20.0"
@@ -3262,6 +3280,12 @@ dependencies = [
  "core_maths",
 ]
 
+[[package]]
+name = "typeid"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc7d623258602320d5c55d1bc22793b57daff0ec7efc270ea7d55ce1d5f5471c"
+
 [[package]]
 name = "unicode-bidi"
 version = "0.3.18"