fix: User Information panel and login/logout flow

frontend/resources/vue/views/UserControlPanel.vue

@@ -0,0 +1,150 @@
+<template>
+  <Section title="User Information" class="small">
+    <div v-if="!isLoggedIn" class="user-not-logged-in">
+      <p>You are not currently logged in.</p>
+      <p>To access user settings and logout, please <router-link to="/login">log in</router-link>.</p>
+    </div>
+
+    <div v-else class="user-control-panel">
+      <dl class="user-info">
+        <dt>Username</dt>
+        <dd>{{ username }}</dd>
+        <dt v-if="userProvider !== 'system'">Provider</dt>
+        <dd v-if="userProvider !== 'system'">{{ userProvider }}</dd>
+        <dt v-if="usergroup">Group</dt>
+        <dd v-if="usergroup">{{ usergroup }}</dd>
+      </dl>
+
+      <div class="user-actions">
+        <div class="action-buttons">
+          <button @click="handleLogout" class="button bad" :disabled="loggingOut">
+            {{ loggingOut ? 'Logging out...' : 'Logout' }}
+          </button>
+        </div>
+      </div>
+    </div>
+  </Section>
+</template>
+
+<script setup>
+import { ref, onMounted, watch, onUnmounted } from 'vue'
+import { useRouter } from 'vue-router'
+import Section from 'picocrank/vue/components/Section.vue'
+
+const router = useRouter()
+
+const isLoggedIn = ref(false)
+const username = ref('guest')
+const userProvider = ref('system')
+const usergroup = ref('')
+const loggingOut = ref(false)
+
+function updateUserInfo() {
+  if (window.initResponse) {
+    isLoggedIn.value = window.initResponse.authenticatedUser !== '' && window.initResponse.authenticatedUser !== 'guest'
+    username.value = window.initResponse.authenticatedUser
+    userProvider.value = window.initResponse.authenticatedUserProvider || 'system'
+    usergroup.value = window.initResponse.effectivePolicy?.usergroup || ''
+  }
+}
+
+async function handleLogout() {
+  loggingOut.value = true
+  
+  try {
+    await window.client.logout({})
+    
+    // Re-initialize to get updated user context (should be guest)
+    try {
+      const initResponse = await window.client.init({})
+      window.initResponse = initResponse
+      window.initError = false
+      window.initErrorMessage = ''
+      window.initCompleted = true
+      
+      // Update the header with new user info
+      if (window.updateHeaderFromInit) {
+        window.updateHeaderFromInit()
+      }
+    } catch (initErr) {
+      console.error('Failed to reinitialize after logout:', initErr)
+    }
+    
+    // Redirect to home page
+    router.push('/')
+  } catch (err) {
+    console.error('Logout error:', err)
+  } finally {
+    loggingOut.value = false
+  }
+}
+
+let watchInterval = null
+
+onMounted(() => {
+  updateUserInfo()
+  
+  // Watch for changes to init response
+  watchInterval = setInterval(() => {
+    if (window.initResponse) {
+      updateUserInfo()
+    }
+  }, 1000)
+})
+
+onUnmounted(() => {
+  if (watchInterval) {
+    clearInterval(watchInterval)
+  }
+})
+</script>
+
+<style scoped>
+section {
+  margin: auto;
+}
+
+.user-not-logged-in {
+  padding: 2rem;
+  text-align: center;
+}
+
+.user-not-logged-in p {
+  margin: 1rem 0;
+}
+
+.user-control-panel {
+  display: grid;
+  grid-template-columns: 1fr;
+  gap: 2rem;
+}
+
+.action-buttons {
+  display: flex;
+  gap: 1rem;
+}
+
+.button {
+  padding: 0.75rem 1.5rem;
+  border-radius: 4px;
+  border: none;
+  cursor: pointer;
+  text-align: center;
+  font-weight: 500;
+  transition: background-color 0.2s;
+}
+
+.button.bad {
+  background-color: #dc3545;
+  color: white;
+}
+
+.button.bad:hover:not(:disabled) {
+  background-color: #c82333;
+}
+
+.button:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+</style>