Populate the client website template with catalog feature flags.

Extract always-on public/portal/UTM plus optional email_sms, directmail, blog, payments, social, and social_ai so new client sites can be bootstrapped from this seed.

Refs #1
Refs #2

Co-authored-by: Cursor <cursoragent@cursor.com>

site/client_site/static/css/address-autocomplete.css

@@ -0,0 +1,35 @@
+/* Address autocomplete dropdown (public + portal). */
+.address-ac-wrap {
+  position: relative;
+}
+
+.address-ac-list {
+  position: absolute;
+  z-index: 40;
+  left: 0;
+  right: 0;
+  top: calc(100% + 2px);
+  margin: 0;
+  padding: 4px 0;
+  list-style: none;
+  max-height: 240px;
+  overflow-y: auto;
+  background: #fff;
+  border: 1px solid #d1d5db;
+  border-radius: 6px;
+  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
+}
+
+.address-ac-item {
+  padding: 8px 12px;
+  font-size: 13px;
+  line-height: 1.35;
+  color: #111827;
+  cursor: pointer;
+}
+
+.address-ac-item:hover,
+.address-ac-item:focus {
+  background: #f3f4f6;
+  outline: none;
+}