refactor(api): extract insights procedures

packages/api/src/__tests__/insights-router.test.ts

@@ -195,4 +195,29 @@ describe("insights router", () => {
       vi.useRealTimers();
     }
   });
+
+  it("returns the cached narrative through the controller router", async () => {
+    const projectFindUnique = vi.fn().mockResolvedValue({
+      dynamicFields: {
+        aiNarrative: "Cached summary",
+        aiNarrativeGeneratedAt: "2026-03-30T08:00:00.000Z",
+      },
+    });
+
+    const caller = createControllerCaller({
+      project: {
+        findUnique: projectFindUnique,
+      },
+    });
+    const result = await caller.getCachedNarrative({ projectId: "project_1" });
+
+    expect(projectFindUnique).toHaveBeenCalledWith({
+      where: { id: "project_1" },
+      select: { dynamicFields: true },
+    });
+    expect(result).toEqual({
+      narrative: "Cached summary",
+      generatedAt: "2026-03-30T08:00:00.000Z",
+    });
+  });
 });