Enhance vitest setup: improve .env file loading with ES modules path resolution

scripts/populate.ts

@@ -24,6 +24,7 @@ import { generateSearchTokens } from "../src/lib/utils/searchTokens.ts";
 import { ReviewStatus } from "../src/lib/types/Review.ts";
 import fs from "fs";
 import path from "path";
+import { fileURLToPath } from "url";
 import { MessageUpdateType } from "../src/lib/types/MessageUpdate.ts";
 import { MessageReasoningUpdateType } from "../src/lib/types/MessageUpdate.ts";
 
@@ -38,6 +39,8 @@ rl.on("close", function () {
 	process.exit(0);
 });
 
+// Fix __dirname usage for ES modules
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const samples = fs.readFileSync(path.join(__dirname, "samples.txt"), "utf8").split("\n---\n");
 
 const possibleFlags = ["reset", "all", "users", "settings", "assistants", "conversations", "tools"];

scripts/setups/vitest-setup-server.ts

@@ -1,11 +1,13 @@
 import { vi, afterAll } from "vitest";
 import dotenv from "dotenv";
-import { resolve } from "path";
+import { resolve, dirname } from "path";
+import { fileURLToPath } from "url";
 import fs from "fs";
 import { MongoMemoryServer } from "mongodb-memory-server";
 
 let mongoServer: MongoMemoryServer;
-// Load the .env file
+// Load the .env file using ES modules path resolution
+const __dirname = dirname(fileURLToPath(import.meta.url));
 const envPath = resolve(__dirname, "../../.env");
 dotenv.config({ path: envPath });