feat: add Go microservice, Dockerfile, docker-compose, and API submission endpoint

public/name.js

@@ -0,0 +1,76 @@
+// Namensauswahl: lädt Namen aus appsettings.json, Kartenauswahl + Abschluss
+
+(function () {
+  const nameList = document.getElementById("nameList");
+  const summary = document.getElementById("summary");
+  const continueBtn = document.getElementById("continueBtn");
+
+  const selectedActivity = localStorage.getItem("selectedActivity");
+  const selectedDate = localStorage.getItem("selectedDate");
+
+  // Ohne Aktivität und Datum ergibt diese Seite keinen Sinn.
+  if (!selectedActivity) {
+    window.location.href = "activity.html";
+    return;
+  }
+  if (!selectedDate) {
+    window.location.href = "datetime.html";
+    return;
+  }
+
+  const dateLabel = new Date(`${selectedDate}T00:00:00`).toLocaleDateString("de-DE", {
+    weekday: "long",
+    day: "numeric",
+    month: "long",
+    year: "numeric",
+  });
+  summary.textContent = `${selectedActivity} am ${dateLabel} – verrate mir, wer du bist.`;
+
+  let selectedName = null;
+
+  fetch("appsettings.json")
+    .then((response) => response.json())
+    .then((settings) => renderNames(settings.names || []))
+    .catch(() => {
+      nameList.textContent = "Namen konnten nicht geladen werden.";
+    });
+
+  function renderNames(names) {
+    const options = names.length > 0 ? names : ["Du weißt, wer ich bin"];
+
+    options.forEach((name) => {
+      const card = document.createElement("button");
+      card.type = "button";
+      card.className = "name-card";
+      card.dataset.name = name;
+
+      const icon = document.createElement("span");
+      icon.className = "icon";
+      icon.setAttribute("aria-hidden", "true");
+      icon.textContent = "💖";
+
+      const label = document.createElement("span");
+      label.className = "label";
+      label.textContent = name;
+
+      card.append(icon, label);
+      card.addEventListener("click", () => {
+        nameList.querySelectorAll(".name-card").forEach((c) => c.classList.remove("selected"));
+        card.classList.add("selected");
+        selectedName = name;
+        continueBtn.disabled = false;
+      });
+
+      nameList.appendChild(card);
+    });
+  }
+
+  continueBtn.addEventListener("click", () => {
+    if (!selectedName) {
+      return;
+    }
+    // Ablage für die spätere Anbindung an Datenbank/Storage
+    localStorage.setItem("selectedName", selectedName);
+    window.location.href = "checkout.html";
+  });
+})();