Fix TradingViewChart test mocks (timeScale) and add UI test for executionPlan rendering in StockDetail

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

app/components/__tests__/TradingViewChart.test.tsx

@@ -25,6 +25,7 @@ describe("TradingViewChart", () => {
     // Update the mock's setData to track calls
     const mockSeries = { setData: mockSetData };
     mockCreateChart.mockReturnValue({
+      timeScale: () => ({ applyOptions: vi.fn(), fitContent: vi.fn() }),
       addSeries: vi.fn(() => mockSeries),
       remove: vi.fn(),
     });

app/routes/__tests__/analyze.ticker.ui.test.tsx

@@ -0,0 +1,49 @@
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import { render, screen, fireEvent, waitFor } from "@testing-library/react";
+import StockDetail from "../analyze.ticker";
+
+vi.mock("react-router", async () => {
+  const actual = await vi.importActual("react-router");
+  return {
+    ...actual,
+    useLoaderData: () => ({
+      ticker: "AAPL",
+      position: null,
+      orders: [],
+      bars: [],
+      timeframe: "1D",
+      range: "1M",
+    }),
+    useNavigate: () => () => {},
+    useLocation: () => ({ pathname: `/analyze/AAPL`, search: "" }),
+  };
+});
+
+describe("StockDetail UI - executionPlan", () => {
+  beforeEach(() => {
+    vi.stubGlobal("fetch", vi.fn((url: string, opts?: any) => {
+      if (url === "/api/analyze") {
+        return Promise.resolve({ ok: true, json: async () => ({
+          action: "sell",
+          confidence: 0.9,
+          reasoning: "Exit position",
+          executionPlan: { amount: 25, riskManagement: { maxLossPercent: 2 }, takeProfit: 150 }
+        }) });
+      }
+      return Promise.resolve({ ok: true, json: async () => ({}) });
+    }));
+  });
+
+  it("displays executionPlan when sell decision returned", async () => {
+    render(<StockDetail />);
+
+    const runButton = screen.getByRole("button", { name: /Run Trading Graph Analysis/i });
+    fireEvent.click(runButton);
+
+    await waitFor(() => expect(screen.getByText(/Execution Plan/i)).toBeInTheDocument());
+    expect(screen.getByText(/Amount:/i)).toBeInTheDocument();
+    expect(screen.getByText(/25 shares/i)).toBeInTheDocument();
+    expect(screen.getByText(/Take profit:/i)).toBeInTheDocument();
+    expect(screen.getByText(/\$150/)).toBeInTheDocument();
+  });
+});