Implemented core > invoke and convert_file_src.

src/core.js

@@ -0,0 +1,12 @@
+// tauri/tooling/api/src/core.ts
+async function invoke(cmd, args = {}) {
+	// NB: `options` ignored as not used here.
+	return window.__TAURI_INTERNALS__.invoke(cmd, args)
+}
+function convertFileSrc(filePath, protocol = 'asset') {
+	return window.__TAURI_INTERNALS__.convertFileSrc(filePath, protocol)
+}
+export {
+	invoke,
+	convertFileSrc
+}