The sign-in fields say nothing until you type

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Web App/web/src/views/Login.vue

@@ -41,13 +41,13 @@ async function submit() {
         <p v-if="error" class="rounded-control bg-danger-soft px-3 py-2 text-sm font-medium text-danger">{{ error }}</p>
         <div>
           <label class="dh-label">{{ t("login.email") }}</label>
-          <input v-model="email" type="email" required autocomplete="username" class="dh-input" />
+          <input v-model="email" type="email" required autocomplete="username" class="dh-input" placeholder="you@example.com" />
         </div>
         <div>
           <label class="dh-label">{{ t("login.password") }}</label>
           <div class="relative">
             <input v-model="password" :type="showPassword ? 'text' : 'password'" required autocomplete="current-password"
-              class="dh-input pr-10" />
+              class="dh-input pr-10" placeholder="••••••••" />
             <button type="button" @click="showPassword = !showPassword"
               :aria-label="showPassword ? t('login.hidePassword') : t('login.showPassword')"
               class="absolute inset-y-0 right-0 flex items-center px-3 text-muted transition-colors hover:text-strong">