feat: xserial-client with session management, mlua integration, and 238 tests

- Session: background I/O task with SessionHandle for send/read/close/reconfigure
- SessionManager: multi-session collection with aggregated event broadcast
- Config: serializable SessionConfig/PipelineConfig/FramerConfig/DecoderConfig
- Lua: xserial global (open/list_ports/sleep/log) + session userdata API
- RingBuffer: bounded history buffer with pipeline filtering
- Core: added Serialize/Deserialize+Default to Endian/TextEncoding/PlotFormat
- Core: added Send bound to Framer trait for tokio task compatibility
- 238 tests (193 core + 10 config + 7 Lua + 9 session + 18 pipeline + 1 doctest)

Cargo.lock

@@ -569,6 +569,16 @@ dependencies = [
  "piper",
 ]
 
+[[package]]
+name = "bstr"
+version = "1.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63044e1ae8e69f3b5a92c736ca6269b8d12fa7efe39bf34ddb06d102cf0e2cab"
+dependencies = [
+ "memchr",
+ "serde",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.20.3"
@@ -1323,6 +1333,17 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
+[[package]]
+name = "erased-serde"
+version = "0.4.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2add8a07dd6a8d93ff627029c51de145e12686fbc36ecb298ac22e74cf02dec"
+dependencies = [
+ "serde",
+ "serde_core",
+ "typeid",
+]
+
 [[package]]
 name = "errno"
 version = "0.3.14"
@@ -2291,6 +2312,25 @@ dependencies = [
  "hashbrown 0.16.1",
 ]
 
+[[package]]
+name = "lua-src"
+version = "550.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e836dc8ae16806c9bdcf42003a88da27d163433e3f9684c52f0301258004a4fb"
+dependencies = [
+ "cc",
+]
+
+[[package]]
+name = "luajit-src"
+version = "210.6.6+707c12b"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a86cc925d4053d0526ae7f5bc765dbd0d7a5d1a63d43974f4966cb349ca63295"
+dependencies = [
+ "cc",
+ "which",
+]
+
 [[package]]
 name = "mac_address"
 version = "1.1.8"
@@ -2390,6 +2430,56 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "mlua"
+version = "0.11.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ccd36acfa49ce6ee56d1307a061dd302c564eee757e6e4cd67eb4f7204846fab"
+dependencies = [
+ "bstr",
+ "either",
+ "erased-serde",
+ "futures-util",
+ "libc",
+ "mlua-sys",
+ "mlua_derive",
+ "num-traits",
+ "parking_lot",
+ "rustc-hash 2.1.2",
+ "rustversion",
+ "serde",
+ "serde-value",
+]
+
+[[package]]
+name = "mlua-sys"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f1c3a7fc7580227ece249fd90aa2fa3b39eb2b49d3aec5e103b3e85f2c3dfc8"
+dependencies = [
+ "cc",
+ "cfg-if",
+ "libc",
+ "lua-src",
+ "luajit-src",
+ "pkg-config",
+]
+
+[[package]]
+name = "mlua_derive"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "465bddde514c4eb3b50b543250e97c1d4b284fa3ef7dc0ba2992c77545dbceb2"
+dependencies = [
+ "itertools",
+ "once_cell",
+ "proc-macro-error2",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "moxcms"
 version = "0.8.1"
@@ -2903,6 +2993,15 @@ dependencies = [
  "libredox",
 ]
 
+[[package]]
+name = "ordered-float"
+version = "2.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68f19d67e5a2795c94e73e0bb1cc1a7edeb2e28efd39e2e1c9b7a40c1108b11c"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "ordered-float"
 version = "4.6.0"
@@ -3272,6 +3371,28 @@ dependencies = [
  "toml_edit",
 ]
 
+[[package]]
+name = "proc-macro-error-attr2"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96de42df36bb9bba5542fe9f1a054b8cc87e172759a1868aa05c1f3acc89dfc5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+]
+
+[[package]]
+name = "proc-macro-error2"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11ec05c52be0a07b08061f7dd003e7d7092e0472bc731b4af7bb1ef876109802"
+dependencies = [
+ "proc-macro-error-attr2",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.106"
@@ -3641,6 +3762,16 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-value"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3a1a3341211875ef120e117ea7fd5228530ae7e7036a779fdc9117be6b3282c"
+dependencies = [
+ "ordered-float 2.10.1",
+ "serde",
+]
+
 [[package]]
 name = "serde_core"
 version = "1.0.228"
@@ -4373,6 +4504,12 @@ dependencies = [
  "rustc-hash 2.1.2",
 ]
 
+[[package]]
+name = "typeid"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc7d623258602320d5c55d1bc22793b57daff0ec7efc270ea7d55ce1d5f5471c"
+
 [[package]]
 name = "typenum"
 version = "1.20.1"
@@ -5074,6 +5211,15 @@ dependencies = [
  "web-sys",
 ]
 
+[[package]]
+name = "which"
+version = "8.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "81995fafaaaf6ae47a7d0cc83c67caf92aeb7e5331650ae6ff856f7c0c60c459"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -5608,8 +5754,13 @@ checksum = "3ae8337f8a065cfc972643663ea4279e04e7256de865aa66fe25cec5fb912d3f"
 name = "xserial-client"
 version = "0.1.0"
 dependencies = [
+ "mlua",
+ "serde",
+ "serde_json",
+ "thiserror 2.0.18",
  "tokio",
  "tracing",
+ "tracing-subscriber",
  "xserial-core",
 ]