Migrate updater LAN and devkit features from old repo

src-tauri/build.rs

@@ -1,3 +1,11 @@
 fn main() {
+    if std::env::var("CARGO_FEATURE_DEVKIT").is_ok() {
+        let protoc = protoc_bin_vendored::protoc_bin_path()
+            .unwrap_or_else(|error| panic!("Failed to resolve bundled protoc: {error}"));
+        std::env::set_var("PROTOC", protoc);
+        tonic_build::compile_protos("proto/sensor_stream.proto")
+            .unwrap_or_else(|error| panic!("Failed to compile devkit proto: {error}"));
+    }
+
     tauri_build::build()
 }