Add projects

backend/internal/pluginhost/loader_unsupported.go

@@ -0,0 +1,15 @@
+//go:build !cgo && !windows
+
+package pluginhost
+
+import "fmt"
+
+type unsupportedLoader struct{}
+
+func (unsupportedLoader) Open(file pluginFile, host *Host) (pluginClient, error) {
+	return nil, fmt.Errorf("standard dynamic library plugin loading requires cgo on this platform: %s", file.Path)
+}
+
+func defaultPluginLoader() pluginLoader {
+	return unsupportedLoader{}
+}