refactor: rename llm worker crate to engine

crates/llm-engine/Cargo.toml

@@ -0,0 +1,29 @@
+[package]
+name = "llm-engine"
+description = "A library for building autonomous LLM-powered systems"
+version = "0.2.1"
+edition.workspace = true
+license.workspace = true
+
+[dependencies]
+serde = { workspace = true, features = ["derive"] }
+serde_json = { workspace = true }
+thiserror = { workspace = true }
+tracing = { workspace = true }
+async-trait = { workspace = true }
+futures = { workspace = true }
+tokio = { workspace = true, features = ["macros", "rt-multi-thread", "time"] }
+tokio-util = "0.7"
+reqwest = { version = "0.13", default-features = false, features = ["stream", "json", "native-tls", "http2"] }
+eventsource-stream = "0.2"
+zstd = "0.13"
+llm-engine-macros = { workspace = true }
+
+[dev-dependencies]
+clap = { version = "4.5", features = ["derive", "env"] }
+schemars = { workspace = true }
+tempfile = { workspace = true }
+dotenv = "0.15"
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+trybuild = "1.0.116"
+wiremock = "0.6.5"