feat(home): prova no topo, contato sem atrito e conversão medida

Home mais curta (hero, vitrine de clientes, sobre, serviços, IA resumida, depoimentos e contato), faixa de clientes e telas reais no hero, sem números do GitHub. Barra de cookies fina, WhatsApp fixo no celular, formulário com e-mail opcional e alternativa por e-mail, página /ia, eventos de e-mail, redes e currículo e conversão do Ads opcional por variável. Rodapé em 3 colunas. Remove componentes órfãos (LighthouseMetrics, Skills, Experience, contagem do GitHub).

lib/analytics.test.ts

@@ -0,0 +1,166 @@
+import {
+  GA_DISABLE_KEY,
+  OPEN_COOKIE_PREFERENCES_EVENT,
+  openCookiePreferences,
+  trackCvDownload,
+  trackEmailClick,
+  trackSocialClick,
+  trackWhatsAppOpen,
+} from "./analytics";
+
+const CONSENT_KEY = "evandro.analytics-consent.v1";
+const ADS_LABEL = "NEXT_PUBLIC_GOOGLE_ADS_CONVERSION_LABEL";
+
+const common = {
+  send_to: "G-QTT9QT0T3S",
+  page_path: "/",
+  page_location: "https://evandro.dev.br/",
+  page_referrer: "",
+};
+
+beforeEach(() => {
+  jest.replaceProperty(process.env, "NODE_ENV", "production");
+  localStorage.setItem(CONSENT_KEY, "granted");
+  delete window[GA_DISABLE_KEY];
+  window.gtag = jest.fn();
+  window.history.replaceState({}, "", "/");
+});
+
+afterEach(() => {
+  jest.restoreAllMocks();
+  localStorage.clear();
+  delete window.gtag;
+  delete process.env[ADS_LABEL];
+});
+
+describe("events", () => {
+  it("sends email_click, social_click and cv_download with static labels only", () => {
+    trackEmailClick({ placement: "footer" });
+    trackSocialClick({ network: "linkedin" });
+    trackCvDownload({ placement: "curriculo" });
+
+    expect(window.gtag).toHaveBeenNthCalledWith(1, "event", "email_click", {
+      ...common,
+      placement: "footer",
+    });
+    expect(window.gtag).toHaveBeenNthCalledWith(2, "event", "social_click", {
+      ...common,
+      network: "linkedin",
+    });
+    expect(window.gtag).toHaveBeenNthCalledWith(3, "event", "cv_download", {
+      ...common,
+      placement: "curriculo",
+    });
+    expect(window.gtag).toHaveBeenCalledTimes(3);
+  });
+
+  it("reports the floating button as a whatsapp_open placement", () => {
+    trackWhatsAppOpen({ service: "Contato", placement: "floating" });
+
+    expect(window.gtag).toHaveBeenCalledWith("event", "whatsapp_open", {
+      ...common,
+      service: "Contato",
+      placement: "floating",
+    });
+  });
+
+  it("knows the /ia page instead of lumping it into /other", () => {
+    window.history.replaceState({}, "", "/ia?x=1#y");
+    trackEmailClick({ placement: "ia" });
+
+    expect(window.gtag).toHaveBeenCalledWith(
+      "event",
+      "email_click",
+      expect.objectContaining({
+        page_path: "/ia",
+        page_location: "https://evandro.dev.br/ia",
+      }),
+    );
+  });
+
+  it.each([
+    ["without consent", () => localStorage.removeItem(CONSENT_KEY)],
+    ["after refusal", () => localStorage.setItem(CONSENT_KEY, "denied")],
+    [
+      "when GA is disabled",
+      () => Object.assign(window, { [GA_DISABLE_KEY]: true }),
+    ],
+    ["when gtag is missing", () => delete window.gtag],
+  ])("sends nothing %s", (_label, arrange) => {
+    process.env[ADS_LABEL] = "abc123";
+    const gtag = window.gtag as jest.Mock;
+    arrange();
+
+    trackWhatsAppOpen({ service: "Contato", placement: "floating" });
+    trackEmailClick({ placement: "footer" });
+    trackSocialClick({ network: "linkedin" });
+    trackCvDownload({ placement: "curriculo" });
+
+    expect(gtag).not.toHaveBeenCalled();
+  });
+
+  it("sends nothing outside production", () => {
+    jest.replaceProperty(process.env, "NODE_ENV", "development");
+    trackEmailClick({ placement: "footer" });
+    expect(window.gtag).not.toHaveBeenCalled();
+  });
+
+  it("never throws when gtag fails", () => {
+    window.gtag = jest.fn(() => {
+      throw new Error("blocked");
+    });
+    expect(() => trackEmailClick({ placement: "footer" })).not.toThrow();
+  });
+});
+
+describe("Google Ads conversion", () => {
+  it("is not sent without the conversion label", () => {
+    trackWhatsAppOpen({ service: "Contato", placement: "floating" });
+    trackEmailClick({ placement: "footer" });
+
+    expect(window.gtag).toHaveBeenCalledTimes(2);
+    for (const [, name] of (window.gtag as jest.Mock).mock.calls) {
+      expect(name).not.toBe("conversion");
+    }
+  });
+
+  it("goes out next to whatsapp_open and email_click when the label exists", () => {
+    process.env[ADS_LABEL] = "abc123";
+
+    trackWhatsAppOpen({ service: "Contato", placement: "floating" });
+    trackEmailClick({ placement: "footer" });
+
+    const calls = (window.gtag as jest.Mock).mock.calls;
+    expect(calls.map(([, name]) => name)).toEqual([
+      "whatsapp_open",
+      "conversion",
+      "email_click",
+      "conversion",
+    ]);
+    expect(calls[1]).toEqual([
+      "event",
+      "conversion",
+      { send_to: "AW-18432694647/abc123" },
+    ]);
+  });
+
+  it("does not turn social clicks or CV downloads into Ads conversions", () => {
+    process.env[ADS_LABEL] = "abc123";
+
+    trackSocialClick({ network: "linkedin" });
+    trackCvDownload({ placement: "curriculo" });
+
+    expect(window.gtag).toHaveBeenCalledTimes(2);
+  });
+});
+
+describe("cookie preferences", () => {
+  it("asks the consent bar to reopen through a window event", () => {
+    const listener = jest.fn();
+    window.addEventListener(OPEN_COOKIE_PREFERENCES_EVENT, listener);
+    openCookiePreferences();
+    window.removeEventListener(OPEN_COOKIE_PREFERENCES_EVENT, listener);
+
+    expect(listener).toHaveBeenCalledTimes(1);
+  });
+});