feat: harden portfolio and add SEO foundations

lib/portfolio-data.test.ts

@@ -1,8 +1,8 @@
-import { getLiveFeaturedProjects } from "./portfolio-data";
+import { getFeaturedProjects, portfolio } from "./portfolio-data";
 import type { ProjectHealthSnapshot } from "./project-health";
 
-describe("getLiveFeaturedProjects", () => {
-  it("returns only featured projects validated in the current snapshot", () => {
+describe("getFeaturedProjects", () => {
+  it("keeps every featured project and classifies demo availability", () => {
     const snapshot: ProjectHealthSnapshot = {
       checkedAt: "2026-07-10T12:00:00.000Z",
       projects: {
@@ -14,11 +14,76 @@ describe("getLiveFeaturedProjects", () => {
       },
     };
 
+    const result = getFeaturedProjects(snapshot);
+
+    expect(result.map(({ id }) => id)).toEqual(
+      portfolio.projects
+        .filter(({ featured }) => featured !== false)
+        .map(({ id }) => id),
+    );
     expect(
-      getLiveFeaturedProjects(
-        snapshot,
-        new Date("2026-07-10T12:01:00.000Z"),
-      ).map((project) => project.id),
-    ).toEqual(["sev-modaintima"]);
+      result.find(({ id }) => id === "sev-modaintima")?.demoAvailability,
+    ).toBe("available");
+    expect(
+      result.find(({ id }) => id === "sev-modaintima")?.demoCheckedAt,
+    ).toBe("2026-07-10T12:00:00.000Z");
+    expect(result.find(({ id }) => id === "twins-lab")?.demoAvailability).toBe(
+      "unknown",
+    );
+    expect(
+      result.find(({ id }) => id === "twins-lab")?.demoCheckedAt,
+    ).toBeNull();
+  });
+
+  it("excludes an isolated featured false fixture and restores the portfolio", () => {
+    const originalLength = portfolio.projects.length;
+    const hiddenProject = {
+      ...portfolio.projects[0],
+      id: "hidden-test-fixture",
+      featured: false,
+    };
+    portfolio.projects.push(hiddenProject);
+
+    try {
+      expect(
+        getFeaturedProjects(null).some(
+          ({ id }) => id === "hidden-test-fixture",
+        ),
+      ).toBe(false);
+    } finally {
+      portfolio.projects.length = originalLength;
+    }
+
+    expect(portfolio.projects).toHaveLength(originalLength);
+  });
+});
+
+describe("factual portfolio records", () => {
+  function serializeProject(id: string) {
+    const project = portfolio.projects.find((item) => item.id === id);
+    expect(project).toBeDefined();
+    if (!project) throw new Error(`Missing project ${id}`);
+    return JSON.stringify(project);
+  }
+
+  it("keeps every public field of the three cases within verified claims", () => {
+    const nutriscan = serializeProject("nutriscan");
+    const twins = serializeProject("twins-lab");
+    const asServicos = serializeProject("as-servicos");
+
+    expect(nutriscan).toContain("Open Food Facts");
+    expect(nutriscan).not.toMatch(
+      /Next\.js\s*\d|PWA|Service Worker|MongoDB|históric|scanner|offline|NutriScore|produç|24\/7|2M\+|disponibilidade|volume de produtos|resultado de saúde/i,
+    );
+
+    expect(twins).toContain("SSE");
+    expect(twins).not.toMatch(
+      /WebSockets?|OpenRouter|sub[- ]segundo|produç|preditiv|ROI|precisão|equipamento real/i,
+    );
+
+    expect(asServicos).toContain("Three.js");
+    expect(asServicos).not.toMatch(
+      /produç|clientes?|leads?|ranking|performance|resultado comercial|anime\.js|shadcn/i,
+    );
   });
 });