feat(integrations): add @mem0/eve memory provider

Give Eve agents a first-class Mem0 recall/capture provider so they can use Mem0 in the agent loop instead of MCP.

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

integrations/eve/tests/capture.test.ts

@@ -0,0 +1,45 @@
+import { describe, expect, it } from "vitest";
+import { captureCompletedTurn } from "../src/capture.js";
+import { createFakeStore } from "./helpers.js";
+
+describe("captureCompletedTurn", () => {
+  it("adds the current turn under the locked scope", async () => {
+    const store = createFakeStore();
+    const captured = await captureCompletedTurn({
+      store,
+      scopeKey: "scope_abc",
+      infer: true,
+      metadata: { source: "eve" },
+      turnInput: [{ role: "user", content: "I am vegetarian" }],
+      messages: [
+        { role: "user", content: "I am vegetarian" },
+        { role: "assistant", content: "Got it." },
+      ],
+    });
+
+    expect(captured).toBe(true);
+    expect(store.added).toEqual([
+      {
+        userId: "scope_abc",
+        messages: [
+          { role: "user", content: "I am vegetarian" },
+          { role: "assistant", content: "Got it." },
+        ],
+      },
+    ]);
+  });
+
+  it("does not write when the turn has no user text", async () => {
+    const store = createFakeStore();
+    const captured = await captureCompletedTurn({
+      store,
+      scopeKey: "scope_abc",
+      infer: true,
+      metadata: {},
+      turnInput: [],
+      messages: [],
+    });
+    expect(captured).toBe(false);
+    expect(store.added).toEqual([]);
+  });
+});