refactor: build/runtime/client configs

app/config/build.ts

@@ -0,0 +1,27 @@
+const COMMIT_ID: string = (() => {
+  try {
+    const childProcess = require("child_process");
+    return (
+      childProcess
+        // .execSync("git describe --tags --abbrev=0")
+        .execSync("git rev-parse --short HEAD")
+        .toString()
+        .trim()
+    );
+  } catch (e) {
+    console.error("[Build Config] No git or not from git repo.");
+    return "unknown";
+  }
+})();
+
+export const getBuildConfig = () => {
+  if (typeof process === "undefined") {
+    throw Error(
+      "[Server Config] you are importing a nodejs-only module outside of nodejs",
+    );
+  }
+
+  return {
+    commitId: COMMIT_ID,
+  };
+};