Rename crate to escpos-vfd and add tokio support

Rename crate to escpos-vfd and add tokio support

Introduce a configurable crate-ready API with presets, typed errors,
optional Tokio async support, and expanded documentation.

Cargo.toml

@@ -1,9 +1,37 @@
 [package]
-name = "m"
-version = "0.1.0"
+name = "escpos-vfd"
+version = "0.2.0"
 edition = "2024"
+rust-version = "1.85"
+description = "ESC/POS-compatible VFD customer display driver with sync and optional Tokio APIs"
+license = "MIT OR Apache-2.0"
+readme = "README.md"
+repository = "https://git.belvedersky.ru/belvedersky/vfd.git"
+documentation = "https://docs.rs/escpos-vfd"
+categories = ["hardware-support", "api-bindings"]
+keywords = ["vfd", "escpos", "serial", "customer-display", "tokio"]
+publish = ["crates-io"]
+exclude = [
+    "/docs/*.pdf",
+    "/taskfile.yml",
+]
 
 [dependencies]
 serialport = "4"
-anyhow = "1"
 encoding_rs = "0.8"
+tokio = { version = "1", optional = true, default-features = false, features = ["io-util", "macros", "rt", "sync", "time"] }
+tokio-serial = { version = "5.5.0", optional = true, default-features = false }
+
+[dev-dependencies]
+tokio = { version = "1", default-features = false, features = ["io-util", "macros", "rt", "sync", "test-util", "time"] }
+
+[features]
+default = []
+tokio = ["dep:tokio", "dep:tokio-serial"]
+
+[[example]]
+name = "tokio_worker"
+required-features = ["tokio"]
+
+[package.metadata.docs.rs]
+all-features = true