fix: load .env before imports and improve dev startup

Co-authored-by: Cursor <cursoragent@cursor.com>

server/load-env.ts

@@ -0,0 +1,13 @@
+import dotenv from "dotenv";
+import fs from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const serverDir = path.dirname(fileURLToPath(import.meta.url));
+const rootEnv = path.resolve(serverDir, "../.env");
+
+if (fs.existsSync(rootEnv)) {
+  dotenv.config({ path: rootEnv });
+} else {
+  dotenv.config();
+}