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

public/name.css

@@ -0,0 +1,65 @@
+/* ==========================================================================
+   Page: Namensauswahl (name.html)
+   ========================================================================== */
+
+.page-name .container {
+  position: relative;
+  z-index: 1;
+}
+
+.page-name .intro {
+  text-align: center;
+  margin-bottom: 1.5em;
+}
+
+.page-name .intro p {
+  color: var(--color-text-light);
+}
+
+.name-list {
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+}
+
+.name-card {
+  display: flex;
+  align-items: center;
+  gap: 14px;
+  width: 100%;
+  min-height: 64px;
+  padding: 14px 20px;
+  background: var(--color-white);
+  border: 2px solid transparent;
+  border-radius: var(--radius-md);
+  box-shadow: var(--shadow-soft);
+  cursor: pointer;
+  touch-action: manipulation;
+  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
+}
+
+.name-card:active {
+  transform: scale(0.98);
+}
+
+.name-card .icon {
+  font-size: 1.6rem;
+  line-height: 1;
+}
+
+.name-card .label {
+  font-family: var(--font-heading);
+  font-weight: 700;
+  font-size: 1.1rem;
+  color: var(--color-text);
+}
+
+.name-card.selected {
+  border-color: var(--color-rose);
+  background: linear-gradient(135deg, var(--color-rose-light) 0%, var(--color-white) 100%);
+  box-shadow: var(--shadow-strong);
+}
+
+.name-card.selected .label {
+  color: var(--color-rose-dark);
+}