refact: remove virtual package

Cargo.toml

@@ -1,18 +1,40 @@
-[workspace]
-members = ["crates/*"]
-resolver = "2"
+[package]
+name = "pacdef"
+description = "multi-backend declarative package manager for Linux"
+version = "1.6.0"
 
-[workspace.package]
-edition = "2021"
+edition = "2024"
 license = "GPL-3.0-or-later"
 repository = "https://github.com/steven-omaha/pacdef"
 readme = "README.md"
 keywords = ["package-manager", "linux", "declarative", "cli"]
 categories = ["command-line-utilities"]
-rust-version = "1.74"
+rust-version = "1.85"
 
-[workspace.dependencies]
-pacdef = { path = "crates/pacdef" }
+[dependencies]
+anyhow = "1.0"
+clap = { version = "4.5", features = ["derive"] }
+const_format = { version = "0.2", default-features = false }
+path-absolutize = "3.1"
+regex = { version = "1.10", default-features = false, features = ["std"] }
+termios = "0.3"
+walkdir = "2.5"
+libc = "0.2"
+enum_dispatch = "0.3"
+log = { version = "0.4", features = ["std"] }
+
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+toml = "0.9"
+
+# backends
+alpm = { version = "4.0", optional = true }
+rust-apt = { version = "0.8", optional = true }
+
+[features]
+default = []
+arch = ["dep:alpm"]
+debian = ["dep:rust-apt"]
 
 [profile.release]
 lto = "off"