Add prisma seed tests and refactor seed script

__tests__/seed.test.ts

@@ -0,0 +1,49 @@
+import { mock } from "bun:test";
+
+const mockPrisma = {
+    user: {
+        upsert: mock(async () => ({ id: "user-1", email: "admin@example.com" })),
+    },
+    apiKey: {
+        upsert: mock(async () => ({ id: "key-1" })),
+    },
+    webHook: {
+        findFirst: mock(async () => null as any),
+        create: mock(async () => ({ id: "webhook-1" })),
+    },
+    chatFlows: {
+        upsert: mock(async () => ({ id: "flow-1" })),
+    },
+    $disconnect: mock(async () => {}),
+};
+
+mock.module("@/server/lib/prisma", () => ({
+    prisma: mockPrisma,
+}));
+
+import { expect, test, describe } from "bun:test";
+import { seed } from "../prisma/seed";
+
+describe("Prisma Seed", () => {
+    test("seed function should populate default data", async () => {
+        const result = await seed();
+
+        expect(result.user.email).toBe("admin@example.com");
+        expect(mockPrisma.user.upsert).toHaveBeenCalled();
+        expect(mockPrisma.apiKey.upsert).toHaveBeenCalled();
+        expect(mockPrisma.webHook.findFirst).toHaveBeenCalled();
+        expect(mockPrisma.webHook.create).toHaveBeenCalled();
+        expect(mockPrisma.chatFlows.upsert).toHaveBeenCalled();
+    });
+
+    test("seed function should skip webhook creation if it already exists", async () => {
+        // Reset mocks
+        mockPrisma.webHook.create.mockClear();
+        mockPrisma.webHook.findFirst.mockResolvedValueOnce({ id: "existing-webhook" });
+
+        await seed();
+
+        expect(mockPrisma.webHook.findFirst).toHaveBeenCalled();
+        expect(mockPrisma.webHook.create).not.toHaveBeenCalled();
+    });
+});