test(coverage): bootstrap vitest unit infra and add tests at 90%+ per file (#1245) (#1269)

* test(coverage): bootstrap vitest unit infra and add tests at 90%+ per file (#1245)

Establishes the unit-test runtime AGENTS.md mandates: a vitest "unit"
project alongside the existing storybook project, RTL + jest-dom +
happy-dom, a Mantine-aware render helper, and a 90%-line per-file
coverage gate enforced by CI. Adds 66 test files covering all 62
components under elements/groups/screens/views, plus core/mcp and
clients/web/src/utils. Total: 577 tests, 98.7% line coverage globally.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* test(coverage): address PR #1269 review feedback

- AGENTS.md: correct coverage gate description (lines ≥ 90, statements ≥ 85,
  functions ≥ 80, branches ≥ 50) with rationale for the relaxed branch
  threshold
- InspectorView.test.tsx: document what the Math.random() mock values
  (0.1 / 0.99) control vs. STUB_SUCCESS_RATE in InspectorView.tsx
- vite.config.ts / tsconfig.test.json: drop unused `globals: true` and the
  `vitest/globals` type now that every test file imports describe/it/expect/vi
  explicitly; manual `afterEach(cleanup)` in setup.ts remains required because
  testing-library auto-cleanup relies on globalThis.afterEach

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

clients/web/src/components/groups/ElicitationFormPanel/ElicitationFormPanel.test.tsx

@@ -0,0 +1,82 @@
+import { describe, it, expect, vi } from "vitest";
+import userEvent from "@testing-library/user-event";
+import type { ElicitRequestFormParams } from "@modelcontextprotocol/sdk/types.js";
+import { renderWithMantine, screen } from "../../../test/renderWithMantine";
+import { ElicitationFormPanel } from "./ElicitationFormPanel";
+
+const dbRequest: ElicitRequestFormParams = {
+  message: "Please provide database connection details.",
+  requestedSchema: {
+    type: "object" as const,
+    properties: {
+      host: { type: "string" as const, title: "Host" },
+      port: { type: "string" as const, title: "Port" },
+    },
+  },
+};
+
+const baseProps = {
+  request: dbRequest,
+  serverName: "postgres-server",
+  values: {},
+  onChange: vi.fn(),
+  onSubmit: vi.fn(),
+  onCancel: vi.fn(),
+};
+
+describe("ElicitationFormPanel", () => {
+  it("renders the quoted request message", () => {
+    renderWithMantine(<ElicitationFormPanel {...baseProps} />);
+    expect(
+      screen.getByText(/Please provide database connection details\./),
+    ).toBeInTheDocument();
+  });
+
+  it("renders the warning with the server name", () => {
+    renderWithMantine(<ElicitationFormPanel {...baseProps} />);
+    expect(screen.getByText("Warning")).toBeInTheDocument();
+    expect(screen.getByText(/postgres-server/)).toBeInTheDocument();
+  });
+
+  it("renders schema fields from the requested schema", () => {
+    renderWithMantine(<ElicitationFormPanel {...baseProps} />);
+    expect(screen.getByLabelText("Host")).toBeInTheDocument();
+    expect(screen.getByLabelText("Port")).toBeInTheDocument();
+  });
+
+  it("renders Submit and Cancel buttons", () => {
+    renderWithMantine(<ElicitationFormPanel {...baseProps} />);
+    expect(screen.getByRole("button", { name: "Submit" })).toBeInTheDocument();
+    expect(screen.getByRole("button", { name: "Cancel" })).toBeInTheDocument();
+  });
+
+  it("invokes onSubmit when Submit is clicked", async () => {
+    const user = userEvent.setup();
+    const onSubmit = vi.fn();
+    renderWithMantine(
+      <ElicitationFormPanel {...baseProps} onSubmit={onSubmit} />,
+    );
+    await user.click(screen.getByRole("button", { name: "Submit" }));
+    expect(onSubmit).toHaveBeenCalledTimes(1);
+  });
+
+  it("invokes onCancel when Cancel is clicked", async () => {
+    const user = userEvent.setup();
+    const onCancel = vi.fn();
+    renderWithMantine(
+      <ElicitationFormPanel {...baseProps} onCancel={onCancel} />,
+    );
+    await user.click(screen.getByRole("button", { name: "Cancel" }));
+    expect(onCancel).toHaveBeenCalledTimes(1);
+  });
+
+  it("invokes onChange when a schema field is updated", async () => {
+    const user = userEvent.setup();
+    const onChange = vi.fn();
+    renderWithMantine(
+      <ElicitationFormPanel {...baseProps} onChange={onChange} />,
+    );
+    await user.type(screen.getByLabelText("Host"), "l");
+    expect(onChange).toHaveBeenCalledWith({ host: "l" });
+  });
+});