feat(cli): support default cross-compilation targets from npmextra.json

readme.md

@@ -119,6 +119,20 @@ dist_rust/
 
 `tsrust` automatically installs missing rustup targets via `rustup target add` when needed.
 
+### Configuration via npmextra.json
+
+You can set default cross-compilation targets in your project's `npmextra.json` file so you don't need to pass `--target` flags every time:
+
+```json
+{
+  "@git.zone/tsrust": {
+    "targets": ["linux_arm64", "linux_amd64"]
+  }
+}
+```
+
+When targets are configured in `npmextra.json`, simply running `tsrust` will cross-compile for all listed targets. CLI `--target` flags take full precedence — if any `--target` is provided, the `npmextra.json` targets are ignored entirely.
+
 ### 🗑️ Clean Only
 
 Remove all build artifacts without rebuilding: