feat(phase6): test connection, keyboard shortcuts, import/export

- NewConnectionDialog: test connection button before save
- useKeyboard composable: Ctrl+N (new), Ctrl+R (refresh keys)
- ConnectionList: import/export JSON buttons
- ConnectionStore: testConnection, exportConnections, importConnections
- i18n support in Sidebar (keyboard shortcuts)

src/renderer/src/components/ConnectionList.vue

@@ -1,7 +1,7 @@
 <script setup lang="ts">
 // src/renderer/src/components/ConnectionList.vue
 import { ref, computed } from 'vue'
-import { ElMessageBox } from 'element-plus'
+import { ElMessageBox, ElMessage } from 'element-plus'
 import ConnectionCard from './ConnectionCard.vue'
 import { useConnectionStore } from '@renderer/stores/connection'
 import type { ConnectionConfig } from '@renderer/stores/connection'
@@ -35,6 +35,38 @@ function handleEdit(conn: ConnectionConfig) {
 function handleNew() {
   emit('edit', null)
 }
+
+async function handleExport() {
+  try {
+    const data = await connStore.exportConnections()
+    const blob = new Blob([data], { type: 'application/json' })
+    const url = URL.createObjectURL(blob)
+    const a = document.createElement('a')
+    a.href = url
+    a.download = `jredis-connections-${new Date().toISOString().slice(0, 10)}.json`
+    a.click()
+    URL.revokeObjectURL(url)
+    ElMessage.success('Connections exported')
+  } catch (err: any) {
+    ElMessage.error(err.message)
+  }
+}
+
+async function handleImport() {
+  try {
+    const result = await window.electronAPI.dialog.openFile({
+      title: 'Import Connections',
+      filters: [{ name: 'JSON', extensions: ['json'] }],
+    })
+    if (result) {
+      const count = await connStore.importConnections(result.content)
+      ElMessage.success(`Imported ${count} connection(s)`)
+      await connStore.loadConnections()
+    }
+  } catch (err: any) {
+    ElMessage.error(err.message)
+  }
+}
 </script>
 
 <template>
@@ -60,9 +92,19 @@ function handleNew() {
         <p v-else>No connections yet</p>
       </div>
     </div>
-    <button class="list-add-btn" @click="handleNew">
-      + New Connection
-    </button>
+    <div class="list-footer">
+      <button class="list-add-btn" @click="handleNew">
+        + New Connection
+      </button>
+      <div class="list-actions">
+        <el-button size="small" text @click="handleImport">
+          <el-icon><Upload /></el-icon> Import
+        </el-button>
+        <el-button size="small" text @click="handleExport">
+          <el-icon><Download /></el-icon> Export
+        </el-button>
+      </div>
+    </div>
   </div>
 </template>
 
@@ -113,8 +155,13 @@ function handleNew() {
   padding: 40px 0;
 }
 
+.list-footer {
+  padding: 14px;
+  border-top: 1px solid var(--border-color);
+}
+
 .list-add-btn {
-  margin: 14px;
+  width: 100%;
   padding: 10px;
   background: var(--bg-card);
   border: 1px dashed var(--border-color);
@@ -123,6 +170,7 @@ function handleNew() {
   font-size: 12px;
   cursor: pointer;
   transition: all 0.2s;
+  margin-bottom: 8px;
 }
 
 .list-add-btn:hover {
@@ -130,4 +178,10 @@ function handleNew() {
   color: var(--accent-light);
   background: var(--bg-card-hover);
 }
+
+.list-actions {
+  display: flex;
+  justify-content: center;
+  gap: 8px;
+}
 </style>

src/renderer/src/components/NewConnectionDialog.vue

@@ -20,6 +20,7 @@ const form = reactive({
 })
 
 const saving = ref(false)
+const testing = ref(false)
 const isEdit = ref(false)
 
 watch(() => props.visible, (v) => {
@@ -49,6 +50,30 @@ function close() {
   emit('update:visible', false)
 }
 
+async function handleTest() {
+  if (!form.host.trim()) {
+    ElMessage.warning('Host is required')
+    return
+  }
+  testing.value = true
+  try {
+    const result = await connStore.testConnection({
+      host: form.host.trim(),
+      port: Number(form.port) || 6379,
+      auth: form.auth || undefined,
+      username: form.username || undefined,
+      tls: form.tls,
+    })
+    if (result.success) {
+      ElMessage.success('Connection successful')
+    } else {
+      ElMessage.error(result.error || 'Connection failed')
+    }
+  } finally {
+    testing.value = false
+  }
+}
+
 async function handleSave() {
   if (!form.name.trim() || !form.host.trim()) {
     ElMessage.warning('Name and host are required')
@@ -128,10 +153,28 @@ async function handleSave() {
       </el-form-item>
     </el-form>
     <template #footer>
-      <el-button @click="close">Cancel</el-button>
-      <el-button type="primary" :loading="saving" @click="handleSave">
-        {{ isEdit ? 'Save' : 'Create' }}
-      </el-button>
+      <div class="dialog-footer">
+        <el-button @click="handleTest" :loading="testing">Test Connection</el-button>
+        <div class="footer-right">
+          <el-button @click="close">Cancel</el-button>
+          <el-button type="primary" :loading="saving" @click="handleSave">
+            {{ isEdit ? 'Save' : 'Create' }}
+          </el-button>
+        </div>
+      </div>
     </template>
   </el-dialog>
 </template>
+
+<style scoped>
+.dialog-footer {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+
+.footer-right {
+  display: flex;
+  gap: 8px;
+}
+</style>

src/renderer/src/components/Sidebar.vue

@@ -4,9 +4,12 @@ import { ref } from 'vue'
 import ConnectionList from './ConnectionList.vue'
 import NewConnectionDialog from './NewConnectionDialog.vue'
 import { useConnectionStore } from '@renderer/stores/connection'
+import { useKeyStore } from '@renderer/stores/key'
 import type { ConnectionConfig } from '@renderer/stores/connection'
+import { useKeyboard } from '@renderer/composables/useKeyboard'
 
 const connStore = useConnectionStore()
+const keyStore = useKeyStore()
 const dialogVisible = ref(false)
 const editingConnection = ref<ConnectionConfig | null>(null)
 
@@ -14,6 +17,20 @@ function handleEdit(conn: ConnectionConfig | null) {
   editingConnection.value = conn
   dialogVisible.value = true
 }
+
+function handleNew() {
+  editingConnection.value = null
+  dialogVisible.value = true
+}
+
+useKeyboard({
+  'ctrl+n': handleNew,
+  'ctrl+r': () => {
+    if (connStore.activeId) {
+      keyStore.scanKeys(connStore.activeId, '0', true)
+    }
+  },
+})
 </script>
 
 <template>

src/renderer/src/composables/useKeyboard.ts

@@ -0,0 +1,25 @@
+// src/renderer/src/composables/useKeyboard.ts
+import { onMounted, onUnmounted } from 'vue'
+
+interface ShortcutMap {
+  [key: string]: () => void
+}
+
+export function useKeyboard(shortcuts: ShortcutMap) {
+  function handler(e: KeyboardEvent) {
+    const key: string[] = []
+    if (e.ctrlKey || e.metaKey) key.push('ctrl')
+    if (e.shiftKey) key.push('shift')
+    if (e.altKey) key.push('alt')
+    key.push(e.key.toLowerCase())
+    const combo = key.join('+')
+
+    if (shortcuts[combo]) {
+      e.preventDefault()
+      shortcuts[combo]()
+    }
+  }
+
+  onMounted(() => window.addEventListener('keydown', handler))
+  onUnmounted(() => window.removeEventListener('keydown', handler))
+}

src/renderer/src/stores/connection.ts

@@ -95,10 +95,51 @@ export const useConnectionStore = defineStore('connection', () => {
     }
   }
 
+  async function testConnection(opts: {
+    host: string; port: number; auth?: string; username?: string; tls?: boolean
+  }): Promise<{ success: boolean; error?: string }> {
+    const testId = `test_${Date.now()}`
+    try {
+      const result = await window.electronAPI.redis.connect(testId, opts)
+      if (result.success) {
+        await window.electronAPI.redis.disconnect(testId)
+        return { success: true }
+      }
+      return { success: false, error: result.error }
+    } catch (err: any) {
+      return { success: false, error: err.message }
+    }
+  }
+
+  async function exportConnections(): Promise<string> {
+    const data = JSON.stringify(connections.value, null, 2)
+    return data
+  }
+
+  async function importConnections(jsonStr: string): Promise<number> {
+    try {
+      const imported = JSON.parse(jsonStr) as ConnectionConfig[]
+      if (!Array.isArray(imported)) throw new Error('Invalid format')
+      let count = 0
+      for (const conn of imported) {
+        if (conn.id && conn.name && conn.host) {
+          const exists = connections.value.find((c: ConnectionConfig) => c.id === conn.id)
+          if (!exists) {
+            await saveConnection(conn)
+            count++
+          }
+        }
+      }
+      return count
+    } catch (err: any) {
+      throw new Error('Import failed: ' + err.message)
+    }
+  }
+
   return {
     connections, activeId, connecting, error, serverInfo,
     activeConnection, isConnected,
     loadConnections, saveConnection, deleteConnection, reorderConnections,
-    connect, disconnect,
+    connect, disconnect, testConnection, exportConnections, importConnections,
   }
 })