feat: add Pyramid home dashboard

frontend/tests/alpha-management.spec.ts

@@ -5,7 +5,7 @@ test("submission tabs, day selection, local correlation and reload", async ({
 }) => {
   const errors: string[] = [];
   page.on("pageerror", (error) => errors.push(error.message));
-  await page.goto("/");
+  await page.goto("/#alphas");
   await page.getByLabel("密码", { exact: true }).fill("browser-test-password");
   await page.getByRole("button", { name: "进入工作空间" }).click();
   await expect(

frontend/tests/sidebar.spec.ts

@@ -19,7 +19,7 @@ test("sidebar geometry, recent navigation, user menu and compact tools", async (
   await page.getByRole("button", { name: "配置", exact: true }).click();
   await expect(page.locator("#model-settings")).toBeInViewport();
   await expect(
-    nav.getByRole("button", { name: "Alpha 管理", exact: true }),
+    nav.getByRole("button", { name: "首页看板", exact: true }),
   ).toHaveAttribute("aria-current", "page");
   await page.locator(".settings-drawer .semi-sidesheet-close").click();
   await page.getByRole("button", { name: "用户菜单", exact: true }).click();

frontend/tests/workspace.spec.ts

@@ -175,7 +175,7 @@ test("account → scoped sync → research → resync → PnL → filtered expor
 test("batch tags, column visibility, server pagination and saved preferences", async ({
   page,
 }) => {
-  await page.goto("/");
+  await page.goto("/#alphas");
   await page.getByLabel("密码", { exact: true }).fill("browser-test-password");
   await page.getByRole("button", { name: "进入工作空间" }).click();
   await expect(