fix(FN-5188): complete Step 5 — restore green verification

Fusion-Task-Id: FN-5188
Fusion-Task-Lineage: 6d238ff1-2d69-44e7-8694-ec19e412f8ef

packages/cli/src/commands/__tests__/dashboard.test.ts

@@ -306,8 +306,15 @@ const mockListen = vi.fn((port: number) => {
 
 vi.mock("@fusion/dashboard", () => ({
   createServer: vi.fn((_store: unknown, opts: Record<string, any> = {}) => {
-    if (opts.engine && !opts.onMerge) {
-      opts.onMerge = (taskId: string) => opts.engine.onMerge(taskId);
+    if (!opts.onMerge) {
+      if (opts.engine) {
+        opts.onMerge = (taskId: string) => opts.engine.onMerge(taskId);
+      } else if (opts.engineManager?.ensureEngine) {
+        opts.onMerge = async (taskId: string) => {
+          const engine = await opts.engineManager.ensureEngine("project-1");
+          return engine?.onMerge(taskId);
+        };
+      }
     }
     opts.onProjectFirstAccessed?.("project-1");
     return { listen: mockListen };
@@ -1249,7 +1256,9 @@ describe("runDashboard — WorktreePool wiring", () => {
 
     await managerInstance.getEngine("project-1").onMerge("FN-TEST");
 
-    expect(aiMergeTask).toHaveBeenCalled();
+    await waitForAsyncExpectation(() => {
+      expect(aiMergeTask).toHaveBeenCalled();
+    });
     const mergeCallOpts = (aiMergeTask as ReturnType<typeof vi.fn>).mock.calls[0][3];
     expect(mergeCallOpts.pool).toBeInstanceOf(WorktreePool);
   });
@@ -1267,6 +1276,11 @@ describe("runDashboard — WorktreePool wiring", () => {
 
     await managerInstance.getEngine("project-1").onMerge("FN-TEST");
 
+    await waitForAsyncExpectation(() => {
+      expect(capturedExecutorOpts).toBeDefined();
+      expect((aiMergeTask as ReturnType<typeof vi.fn>).mock.calls[0]?.[3]?.pool).toBeDefined();
+    });
+
     const executorPool = capturedExecutorOpts!.pool;
     const mergerPool = (aiMergeTask as ReturnType<typeof vi.fn>).mock.calls[0][3].pool;
 
@@ -2524,7 +2538,7 @@ describe("runDashboard — PR feedback follow-up wiring", () => {
     await capturedOnClosedPrFeedback("FN-001", mockPrInfo, mockComments);
 
     // The PrCommentHandler mock should have been called
-    const handlerInstance = (PrCommentHandler as unknown as ReturnType<typeof vi.fn>).mock.results[0].value;
+    const handlerInstance = (PrCommentHandler as unknown as ReturnType<typeof vi.fn>).mock.results.at(-1)?.value;
     expect(handlerInstance.createFollowUpTask).toHaveBeenCalledWith("FN-001", mockPrInfo, mockComments);
   });
 

packages/core/src/__tests__/db.test.ts

@@ -316,7 +316,7 @@ describe("Database", () => {
       expect(bootstrappedAt).toBeGreaterThan(0);
       expect(bootstrappedAt).toBeLessThanOrEqual(Date.now());
 
-      const reopened = new Database(tempDir);
+      const reopened = new Database(fusionDir);
       reopened.init();
       try {
         expect(reopened.getBootstrappedAt()).toBe(bootstrappedAt);

packages/engine/src/__tests__/reliability-interactions/branch-recovery-orphan-rescue.test.ts

@@ -14,6 +14,7 @@ function createStore(): TaskStore & EventEmitter {
   (emitter as any).moveTask = vi.fn().mockResolvedValue(undefined);
   (emitter as any).logEntry = vi.fn().mockResolvedValue(undefined);
   (emitter as any).recordRunAuditEvent = vi.fn().mockResolvedValue(undefined);
+  (emitter as any).getBootstrappedAt = vi.fn(() => null);
   (emitter as any).createTask = vi.fn();
   (emitter as any).clearStaleExecutionStartBranchReferences = vi.fn().mockReturnValue([]);
   return emitter;

packages/engine/src/__tests__/self-healing.test.ts

@@ -159,6 +159,7 @@ function createMockStore(overrides: Record<string, unknown> = {}): TaskStore & E
     listTasks: vi.fn().mockResolvedValue([]),
     createTask: vi.fn().mockResolvedValue({ id: "FN-RESCUE", lineageId: "lin-rescue" }),
     recordRunAuditEvent: vi.fn().mockResolvedValue(undefined),
+    getBootstrappedAt: vi.fn().mockReturnValue(null),
     getRootDir: vi.fn().mockReturnValue("/tmp/test-project"),
     clearStaleExecutionStartBranchReferences: vi.fn().mockReturnValue([]),
     ...overrides,