fix(HAI-073): add blockedBy to updateTask parameter type

- Add blockedBy field to the updateTask parameter type in store.ts
- Add tests for updateTask blockedBy functionality

packages/core/src/store.test.ts

@@ -385,4 +385,19 @@ describe("TaskStore", () => {
       expect(updated.dependencies).toEqual(["HAI-001"]);
     });
   });
+
+  describe("updateTask — blockedBy", () => {
+    it("sets blockedBy to a string value", async () => {
+      const task = await store.createTask({ title: "Blocked task", description: "A task" });
+      const updated = await store.updateTask(task.id, { blockedBy: "HAI-999" });
+      expect(updated.blockedBy).toBe("HAI-999");
+    });
+
+    it("clears blockedBy when set to null", async () => {
+      const task = await store.createTask({ title: "Blocked task", description: "A task" });
+      await store.updateTask(task.id, { blockedBy: "HAI-999" });
+      const updated = await store.updateTask(task.id, { blockedBy: null });
+      expect(updated.blockedBy).toBeUndefined();
+    });
+  });
 });

packages/core/src/store.ts

@@ -282,7 +282,7 @@ export class TaskStore extends EventEmitter<TaskStoreEvents> {
 
   async updateTask(
     id: string,
-    updates: { title?: string; description?: string; prompt?: string; worktree?: string; status?: string | null; dependencies?: string[] },
+    updates: { title?: string; description?: string; prompt?: string; worktree?: string; status?: string | null; dependencies?: string[]; blockedBy?: string | null },
   ): Promise<Task> {
     return this.withTaskLock(id, async () => {
       const dir = this.taskDir(id);