feat: implement OS bridge and enhance app launcher functionality

crates/plugins/plugin-apps/Cargo.toml

@@ -7,15 +7,12 @@ edition = "2024"
 name = "plugin_apps"
 path = "src/lib.rs"
 
-[[bin]]
-name = "plugin-apps"
-path = "src/main.rs"
-
 [dependencies]
 async-trait = { workspace = true }
 k-launcher-kernel = { path = "../../k-launcher-kernel" }
-libc = "0.2"
 serde = { workspace = true }
 serde_json = "1.0"
 tokio = { workspace = true }
+
+[target.'cfg(target_os = "linux")'.dependencies]
 xdg = "2"