fix: update integration tests for v3 API responses

- crud.test.ts: add() returns {event_id, status} not an array
- search.test.ts: use snake_case user_id in filters for v3 compatibility

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

mem0-ts/src/client/tests/integration/crud.test.ts

@@ -53,15 +53,9 @@ describeIntegration("MemoryClient Integration — CRUD", () => {
 
       const result = await client.add(messages, { userId: TEST_USER_ID });
 
-      // API processes memories asynchronously — returns PENDING
-      expect(Array.isArray(result)).toBe(true);
-      expect(result.length).toBeGreaterThan(0);
-
-      // Validate response shape
-      for (const item of result) {
-        expect(item).toHaveProperty("status");
-        expect(item).toHaveProperty("eventId");
-      }
+      // v3 API processes memories asynchronously — returns PENDING
+      expect(result).toHaveProperty("event_id");
+      expect(result).toHaveProperty("status");
     });
 
     test("adds a second batch of messages", async () => {
@@ -77,7 +71,7 @@ describeIntegration("MemoryClient Integration — CRUD", () => {
       ];
 
       const result = await client.add(messages, { userId: TEST_USER_ID });
-      expect(Array.isArray(result)).toBe(true);
+      expect(result).toHaveProperty("event_id");
     });
 
     test("memories become available after async processing", async () => {
@@ -196,8 +190,7 @@ describeIntegration("MemoryClient Integration — CRUD", () => {
         },
       );
 
-      expect(Array.isArray(result)).toBe(true);
-      expect(result.length).toBeGreaterThan(0);
+      expect(result).toHaveProperty("event_id");
     });
 
     test("getAll for non-existent user returns empty array", async () => {

mem0-ts/src/client/tests/integration/search.test.ts

@@ -109,7 +109,7 @@ describeIntegration("MemoryClient Integration — Search & History", () => {
   describe("edge cases", () => {
     test("search for non-existent user returns empty results", async () => {
       const response = await client.search("anything", {
-        filters: { userId: `nonexistent-user-${randomUUID()}` },
+        filters: { user_id: `nonexistent-user-${randomUUID()}` },
       });
 
       expect(response).toHaveProperty("results");