refactor: consolidate agent/editor plugins under integrations/ (#5491)

Co-authored-by: Claude <noreply@anthropic.com>

integrations/pi-agent-plugin/tests/dream.test.ts

@@ -0,0 +1,59 @@
+import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
+import * as fs from "node:fs";
+import { checkCheapGates, checkMemoryGate } from "../src/dream/index.ts";
+
+vi.mock("node:fs");
+
+const STATE_DIR = "/tmp/test-mem0-dream";
+
+describe("checkCheapGates", () => {
+  beforeEach(() => {
+    vi.mocked(fs.mkdirSync).mockReturnValue(undefined);
+  });
+
+  afterEach(() => {
+    vi.restoreAllMocks();
+  });
+
+  it("blocks when no state file exists (zero sessions)", () => {
+    vi.mocked(fs.readFileSync).mockImplementation(() => { throw new Error("ENOENT"); });
+    const result = checkCheapGates(STATE_DIR, {});
+    expect(result.proceed).toBe(false);
+    expect(result.reason).toContain("sessions");
+  });
+
+  it("blocks when consolidated recently", () => {
+    vi.mocked(fs.readFileSync).mockReturnValue(
+      JSON.stringify({ lastConsolidatedAt: Date.now() - 3_600_000, sessionsSince: 10, lastSessionId: null })
+    );
+    const result = checkCheapGates(STATE_DIR, {});
+    expect(result.proceed).toBe(false);
+    expect(result.reason).toContain("time");
+  });
+
+  it("blocks when not enough sessions", () => {
+    vi.mocked(fs.readFileSync).mockReturnValue(
+      JSON.stringify({ lastConsolidatedAt: Date.now() - 48 * 3_600_000, sessionsSince: 2, lastSessionId: null })
+    );
+    const result = checkCheapGates(STATE_DIR, {});
+    expect(result.proceed).toBe(false);
+    expect(result.reason).toContain("sessions");
+  });
+
+  it("proceeds when both gates pass", () => {
+    vi.mocked(fs.readFileSync).mockReturnValue(
+      JSON.stringify({ lastConsolidatedAt: Date.now() - 48 * 3_600_000, sessionsSince: 10, lastSessionId: null })
+    );
+    expect(checkCheapGates(STATE_DIR, {}).proceed).toBe(true);
+  });
+});
+
+describe("checkMemoryGate", () => {
+  it("blocks when too few memories", () => {
+    expect(checkMemoryGate(5, {}).pass).toBe(false);
+  });
+
+  it("passes when enough memories", () => {
+    expect(checkMemoryGate(25, {}).pass).toBe(true);
+  });
+});