Added:

- `sharedlib` build kind (shared library output)
- ASM projects (`build.language = "asm"`)
- NASM and GAS backends
- `build.platform` architecture hint for `-march` / `/arch`
- Basic CLI integration tests

src/platform/macos.rs

@@ -11,3 +11,10 @@ pub fn lib_path(profile: &str, name: &str, target_dir: Option<&str>) -> String {
         None => format!("./target/{profile}/lib{name}.a"),
     }
 }
+
+pub fn shared_lib_path(profile: &str, name: &str, target_dir: Option<&str>) -> String {
+    match target_dir {
+        Some(dir) => format!("{}/lib{}.dylib", dir.trim_end_matches('/'), name),
+        None => format!("./target/{profile}/lib{name}.dylib"),
+    }
+}