kin: BATON-BIZ-002 Убрать hardcoded VAPID key из meta-тега, читать с /api/push/public-key

frontend/index.html

@@ -36,7 +36,9 @@
 
   <!-- Onboarding screen: shown on first visit (no UUID registered yet) -->
   <div id="screen-onboarding" class="screen" role="main" hidden>
-    <div class="screen-content">
+
+    <!-- View: name entry (existing onboarding) -->
+    <div class="screen-content" id="view-login">
       <input
         type="text"
         id="name-input"
@@ -52,7 +54,53 @@
       <button type="button" id="btn-confirm" class="btn-confirm" disabled>
         Confirm
       </button>
+      <button type="button" id="btn-switch-to-register" class="btn-link">
+        Зарегистрироваться
+      </button>
     </div>
+
+    <!-- View: account registration -->
+    <div class="screen-content" id="view-register" hidden>
+      <input
+        type="email"
+        id="reg-email"
+        class="name-input"
+        placeholder="Email"
+        autocomplete="email"
+        autocorrect="off"
+        autocapitalize="none"
+        spellcheck="false"
+        aria-label="Email"
+      >
+      <input
+        type="text"
+        id="reg-login"
+        class="name-input"
+        placeholder="Логин"
+        maxlength="64"
+        autocomplete="username"
+        autocorrect="off"
+        autocapitalize="none"
+        spellcheck="false"
+        aria-label="Логин"
+      >
+      <input
+        type="password"
+        id="reg-password"
+        class="name-input"
+        placeholder="Пароль"
+        autocomplete="new-password"
+        aria-label="Пароль"
+      >
+      <button type="button" id="btn-register" class="btn-confirm">
+        Зарегистрироваться
+      </button>
+      <button type="button" id="btn-switch-to-login" class="btn-link">
+        ← Назад
+      </button>
+      <div id="reg-status" class="reg-status" hidden></div>
+    </div>
+
   </div>
 
   <!-- Main screen: SOS button -->