feat: 功能2 - 绑定/解绑 Agent (v0.9.7)

- 添加 BotSettingsModal.vue 机器人设置模态框
- 显示在线 Agent 列表
- 实现 Agent 绑定功能
- 实现 Agent 解绑功能
- HomeView 添加设置按钮（hover 显示）
- Store 添加 bindBotAgent 方法
- 显示机器人绑定状态

frontend/src/components/chat/BotSettingsModal.vue

@@ -0,0 +1,410 @@
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import type { Bot, Agent } from '@/stores/chat'
+
+const props = defineProps<{
+  bot: Bot
+}>()
+
+const emit = defineEmits<{
+  close: []
+  updated: [bot: Bot]
+}>()
+
+const agents = ref<Agent[]>([])
+const selectedAgentId = ref<string | null>(null)
+const loading = ref(false)
+const error = ref('')
+
+onMounted(async () => {
+  await fetchAgents()
+  selectedAgentId.value = props.bot.agent_id || null
+})
+
+async function fetchAgents() {
+  try {
+    const response = await fetch('/api/agents/available', {
+      headers: {
+        'Authorization': `Bearer ${localStorage.getItem('access_token')}`
+      }
+    })
+    const data = await response.json()
+    agents.value = data.agents || []
+  } catch (e) {
+    console.error('Fetch agents failed:', e)
+  }
+}
+
+async function handleBind() {
+  if (!selectedAgentId.value) {
+    error.value = '请选择一个 Agent'
+    return
+  }
+  
+  loading.value = true
+  error.value = ''
+  
+  try {
+    const response = await fetch(`/api/bots/${props.bot.id}/bind`, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'Authorization': `Bearer ${localStorage.getItem('access_token')}`
+      },
+      body: JSON.stringify({ agent_id: selectedAgentId.value })
+    })
+    
+    if (!response.ok) {
+      const data = await response.json()
+      throw new Error(data.error || '绑定失败')
+    }
+    
+    const data = await response.json()
+    emit('updated', data.bot)
+    emit('close')
+  } catch (e: any) {
+    error.value = e.message || '绑定失败'
+  } finally {
+    loading.value = false
+  }
+}
+
+async function handleUnbind() {
+  loading.value = true
+  error.value = ''
+  
+  try {
+    const response = await fetch(`/api/bots/${props.bot.id}/unbind`, {
+      method: 'POST',
+      headers: {
+        'Authorization': `Bearer ${localStorage.getItem('access_token')}`
+      }
+    })
+    
+    if (!response.ok) {
+      const data = await response.json()
+      throw new Error(data.error || '解绑失败')
+    }
+    
+    const data = await response.json()
+    selectedAgentId.value = null
+    emit('updated', data.bot)
+  } catch (e: any) {
+    error.value = e.message || '解绑失败'
+  } finally {
+    loading.value = false
+  }
+}
+</script>
+
+<template>
+  <div class="modal-overlay" @click.self="emit('close')">
+    <div class="modal">
+      <div class="modal-header">
+        <h3>机器人设置</h3>
+        <button class="close-btn" @click="emit('close')">×</button>
+      </div>
+      
+      <div class="modal-body">
+        <!-- Bot Info -->
+        <div class="bot-info">
+          <div class="bot-avatar">{{ bot.avatar || '🤖' }}</div>
+          <div class="bot-details">
+            <h4>{{ bot.display_name || bot.name }}</h4>
+            <p class="bot-status" :class="bot.status">
+              {{ bot.status === 'online' ? '🟢 在线' : '⚪ 离线' }}
+            </p>
+          </div>
+        </div>
+        
+        <!-- Agent Selection -->
+        <div class="form-group">
+          <label>绑定 Agent</label>
+          <p class="hint">选择一个在线的 Agent 来启用此机器人</p>
+          
+          <div class="agent-list" v-if="agents.length > 0">
+            <label
+              v-for="agent in agents"
+              :key="agent.id"
+              class="agent-item"
+              :class="{ selected: selectedAgentId === agent.id }"
+            >
+              <input
+                type="radio"
+                :value="agent.id"
+                v-model="selectedAgentId"
+              />
+              <div class="agent-avatar">🤖</div>
+              <div class="agent-info">
+                <span class="agent-name">{{ agent.display_name || agent.name }}</span>
+                <span class="agent-status" :class="agent.status">
+                  {{ agent.status === 'online' ? '在线' : '离线' }}
+                </span>
+              </div>
+            </label>
+          </div>
+          
+          <div class="empty" v-else>
+            <p>暂无可用 Agent</p>
+            <p class="hint">请确保至少有一个 Agent 在线</p>
+          </div>
+        </div>
+        
+        <!-- Error -->
+        <div v-if="error" class="error-message">
+          {{ error }}
+        </div>
+        
+        <!-- Actions -->
+        <div class="modal-actions">
+          <button
+            v-if="bot.agent_id"
+            type="button"
+            class="btn-unbind"
+            @click="handleUnbind"
+            :disabled="loading"
+          >
+            解绑
+          </button>
+          <button
+            type="button"
+            class="btn-bind"
+            @click="handleBind"
+            :disabled="loading || !selectedAgentId"
+          >
+            {{ loading ? '处理中...' : '绑定' }}
+          </button>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.modal-overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.5);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 100;
+}
+
+.modal {
+  background: var(--bg-primary);
+  border-radius: var(--border-radius-lg);
+  width: 100%;
+  max-width: 480px;
+  overflow: hidden;
+}
+
+.modal-header {
+  padding: var(--spacing-md) var(--spacing-lg);
+  border-bottom: 1px solid var(--border-color);
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+
+.modal-header h3 {
+  font-size: var(--font-size-lg);
+  font-weight: 600;
+}
+
+.close-btn {
+  width: 32px;
+  height: 32px;
+  border: none;
+  background: transparent;
+  font-size: 24px;
+  color: var(--text-secondary);
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 50%;
+}
+
+.close-btn:hover {
+  background: var(--bg-secondary);
+}
+
+.modal-body {
+  padding: var(--spacing-lg);
+  display: flex;
+  flex-direction: column;
+  gap: var(--spacing-md);
+}
+
+.bot-info {
+  display: flex;
+  align-items: center;
+  gap: var(--spacing-md);
+  padding: var(--spacing-md);
+  background: var(--bg-secondary);
+  border-radius: var(--border-radius);
+}
+
+.bot-avatar {
+  width: 48px;
+  height: 48px;
+  border-radius: 50%;
+  background: var(--bg-tertiary);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 24px;
+}
+
+.bot-details h4 {
+  font-size: var(--font-size-md);
+  font-weight: 600;
+  margin-bottom: var(--spacing-xs);
+}
+
+.bot-status {
+  font-size: var(--font-size-sm);
+  color: var(--text-secondary);
+}
+
+.bot-status.online {
+  color: var(--success-color);
+}
+
+.form-group {
+  display: flex;
+  flex-direction: column;
+  gap: var(--spacing-xs);
+}
+
+.form-group label {
+  font-size: var(--font-size-sm);
+  font-weight: 500;
+}
+
+.hint {
+  font-size: var(--font-size-xs);
+  color: var(--text-tertiary);
+}
+
+.agent-list {
+  display: flex;
+  flex-direction: column;
+  gap: var(--spacing-sm);
+  max-height: 240px;
+  overflow-y: auto;
+}
+
+.agent-item {
+  display: flex;
+  align-items: center;
+  gap: var(--spacing-sm);
+  padding: var(--spacing-sm) var(--spacing-md);
+  border: 1px solid var(--border-color);
+  border-radius: var(--border-radius);
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.agent-item:hover {
+  background: var(--bg-secondary);
+}
+
+.agent-item.selected {
+  border-color: var(--primary-color);
+  background: rgba(99, 102, 241, 0.1);
+}
+
+.agent-item input {
+  display: none;
+}
+
+.agent-avatar {
+  width: 32px;
+  height: 32px;
+  border-radius: 50%;
+  background: var(--bg-tertiary);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 16px;
+}
+
+.agent-info {
+  flex: 1;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+
+.agent-name {
+  font-size: var(--font-size-sm);
+  font-weight: 500;
+}
+
+.agent-status {
+  font-size: var(--font-size-xs);
+  color: var(--text-tertiary);
+}
+
+.agent-status.online {
+  color: var(--success-color);
+}
+
+.empty {
+  text-align: center;
+  padding: var(--spacing-lg);
+  color: var(--text-tertiary);
+}
+
+.error-message {
+  color: var(--error-color);
+  font-size: var(--font-size-sm);
+  padding: var(--spacing-sm);
+  background: rgba(239, 68, 68, 0.1);
+  border-radius: var(--border-radius);
+}
+
+.modal-actions {
+  display: flex;
+  gap: var(--spacing-sm);
+}
+
+.btn-unbind,
+.btn-bind {
+  flex: 1;
+  padding: var(--spacing-sm) var(--spacing-md);
+  border-radius: var(--border-radius);
+  font-size: var(--font-size-md);
+  font-weight: 500;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.btn-unbind {
+  background: transparent;
+  border: 1px solid var(--error-color);
+  color: var(--error-color);
+}
+
+.btn-unbind:hover:not(:disabled) {
+  background: rgba(239, 68, 68, 0.1);
+}
+
+.btn-bind {
+  background: var(--primary-color);
+  border: none;
+  color: white;
+}
+
+.btn-bind:hover:not(:disabled) {
+  background: var(--primary-dark);
+}
+
+.btn-unbind:disabled,
+.btn-bind:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+</style>

frontend/src/views/HomeView.vue

@@ -2,14 +2,17 @@
 import { ref, onMounted } from 'vue'
 import { useRouter } from 'vue-router'
 import { useAuthStore } from '@/stores/auth'
-import { useChatStore } from '@/stores/chat'
+import { useChatStore, type Bot } from '@/stores/chat'
 import CreateBotModal from '@/components/chat/CreateBotModal.vue'
+import BotSettingsModal from '@/components/chat/BotSettingsModal.vue'
 
 const router = useRouter()
 const authStore = useAuthStore()
 const chatStore = useChatStore()
 
 const showCreateBot = ref(false)
+const showBotSettings = ref(false)
+const selectedBot = ref<Bot | null>(null)
 
 onMounted(async () => {
   await chatStore.fetchBots()
@@ -28,9 +31,23 @@ function resumeChat(sessionId: string) {
   router.push({ name: 'chat', params: { sessionId } })
 }
 
-function handleBotCreated(bot: any) {
+function handleBotCreated(bot: Bot) {
   chatStore.bots.push(bot)
 }
+
+function openBotSettings(bot: Bot, event: Event) {
+  event.stopPropagation()
+  selectedBot.value = bot
+  showBotSettings.value = true
+}
+
+function handleBotUpdated(bot: Bot) {
+  const index = chatStore.bots.findIndex(b => b.id === bot.id)
+  if (index !== -1) {
+    chatStore.bots[index] = bot
+  }
+  selectedBot.value = bot
+}
 </script>
 
 <template>
@@ -53,7 +70,10 @@ function handleBotCreated(bot: any) {
     <main class="main-content">
       <!-- Bot List -->
       <section class="section">
-        <h2 class="section-title">选择机器人开始聊天</h2>
+        <div class="section-header">
+          <h2 class="section-title">选择机器人开始聊天</h2>
+          <span class="bot-count">{{ chatStore.bots.length }} 个机器人</span>
+        </div>
         <div class="bot-grid">
           <div
             v-for="bot in chatStore.bots"
@@ -70,6 +90,12 @@ function handleBotCreated(bot: any) {
                 {{ bot.status === 'online' ? '🟢 在线' : '⚪ 离线' }}
               </p>
             </div>
+            <button
+              class="settings-btn"
+              @click="openBotSettings(bot, $event)"
+            >
+              ⚙️
+            </button>
           </div>
         </div>
       </section>
@@ -110,6 +136,13 @@ function handleBotCreated(bot: any) {
       @close="showCreateBot = false"
       @created="handleBotCreated"
     />
+
+    <BotSettingsModal
+      v-if="showBotSettings && selectedBot"
+      :bot="selectedBot"
+      @close="showBotSettings = false"
+      @updated="handleBotUpdated"
+    />
   </div>
 </template>
 
@@ -192,11 +225,22 @@ function handleBotCreated(bot: any) {
   margin-bottom: var(--spacing-xl);
 }
 
+.section-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: var(--spacing-md);
+}
+
 .section-title {
   font-size: var(--font-size-md);
   font-weight: 600;
   color: var(--text-primary);
-  margin-bottom: var(--spacing-md);
+}
+
+.bot-count {
+  font-size: var(--font-size-sm);
+  color: var(--text-tertiary);
 }
 
 .bot-grid {
@@ -214,6 +258,7 @@ function handleBotCreated(bot: any) {
   gap: var(--spacing-md);
   cursor: pointer;
   transition: transform 0.2s, box-shadow 0.2s;
+  position: relative;
 }
 
 .bot-card:hover {
@@ -221,6 +266,32 @@ function handleBotCreated(bot: any) {
   box-shadow: var(--shadow-md);
 }
 
+.settings-btn {
+  position: absolute;
+  top: 8px;
+  right: 8px;
+  width: 28px;
+  height: 28px;
+  border: none;
+  background: var(--bg-tertiary);
+  border-radius: 50%;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 12px;
+  opacity: 0;
+  transition: opacity 0.2s;
+}
+
+.bot-card:hover .settings-btn {
+  opacity: 1;
+}
+
+.settings-btn:hover {
+  background: var(--bg-primary);
+}
+
 .bot-avatar {
   width: 48px;
   height: 48px;