refactor: clean separation between lib and CLI

Cargo.toml

@@ -1,5 +1,12 @@
-[package]
-name = "raust"
+[workspace]
+members = ["raust-cli", "raust-engine"]
+resolver = "3"
+
+[profile.release]
+lto = true
+codegen-units = 1
+
+[workspace.package]
 version = "0.1.0"
 edition = "2024"
 authors = ["Lucien Cartier-Tilet <lucien@phundrak.com>"]
@@ -7,18 +14,28 @@ license = "GPL-3.0-or-later"
 homepage = "https://labs.phundrak.com/phundrak/raust"
 repository = "https://labs.phundrak.com/phundrak/raust"
 
-[lib]
-path = "src/lib.rs"
-
-[[bin]]
-path = "src/main.rs"
-name = "raust"
-
-[dependencies]
+[workspace.dependencies]
 anyhow = "1.0.104"
 cpal = { version = "0.18.2", features = ["realtime"] }
+raust-engine = { version = "=0.1.0", path = "raust-engine" }
 
-[features]
-default = []
+[workspace.lints.rust]
+unsafe_code = "forbid"
 
-pipewire = ["cpal/pipewire"]
+[workspace.lints.clippy]
+pedantic = { level = "deny", priority = -1 }
+nursery = { level = "deny", priority = -1 }
+unwrap_used = "deny"
+expect_used = "deny"
+indexing_slicing = "deny"
+arithmetic_side_effects = "deny"
+unreachable = "deny"
+unimplemented = "deny"
+unchecked_time_subtraction = "deny"
+todo = "deny"
+string_slice = "deny"
+panic_in_result_fn = "deny"
+panic = "deny"
+exit = "deny"
+as_conversions = "deny"
+many_single_char_names = "allow"