feat(FN-3446): expand dashboard guide view sections and add regression test

Merged two commits completing the FN-3446 dashboard guide feature: the documentation was expanded with new view sections, and a regression test suite was added for the dashboard guide to prevent future regressions.

Fusion-Task-Id: FN-3446

packages/dashboard/src/__tests__/dashboard-guide.test.ts

@@ -0,0 +1,55 @@
+// @vitest-environment node
+
+import { describe, it, expect } from "vitest";
+import { readFileSync } from "node:fs";
+import path from "node:path";
+
+const repoRoot = path.resolve(__dirname, "../../../../");
+
+function readDashboardGuide(): string {
+  return readFileSync(path.join(repoRoot, "docs/dashboard-guide.md"), "utf8");
+}
+
+function getSectionBody(doc: string, heading: string): string {
+  const escaped = heading.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
+  const match = doc.match(new RegExp(`## ${escaped}\\n([\\s\\S]*?)(?=\\n## |$)`));
+  return match?.[1]?.trim() ?? "";
+}
+
+describe("dashboard guide coverage for lazy-loaded views", () => {
+  const requiredSections = [
+    "Dev Server View",
+    "Agents View",
+    "Roadmaps View",
+    "Insights View",
+    "Plugin Manager",
+    "Pi Extensions Manager",
+  ] as const;
+
+  it("includes all required section headings", () => {
+    const guide = readDashboardGuide();
+
+    for (const section of requiredSections) {
+      expect(guide).toContain(`## ${section}`);
+    }
+  });
+
+  it("documents non-empty section bodies with guide-style structure markers", () => {
+    const guide = readDashboardGuide();
+
+    for (const section of requiredSections) {
+      const body = getSectionBody(guide, section);
+      expect(body.length).toBeGreaterThan(0);
+      expect(body).toMatch(/(?:^|\n)(?:- |> |\|\s|!\[)/m);
+    }
+  });
+
+  it("includes key navigation/settings terms for plugin surfaces", () => {
+    const guide = readDashboardGuide();
+    const pluginBody = getSectionBody(guide, "Plugin Manager");
+    const piBody = getSectionBody(guide, "Pi Extensions Manager");
+
+    expect(pluginBody).toContain("Settings → Plugins → Fusion Plugins");
+    expect(piBody).toContain("Settings → Plugins → Pi Extensions");
+  });
+});