feat: add toast feedback for connection operations

Add toast notifications for delete, disconnect, duplicate, copy name,
and delete group operations in the sidebar context menu.

src/components/sidebar/TreeItem.vue

@@ -501,6 +501,7 @@ async function confirmDelete() {
     try {
       await connectionStore.disconnect(node.connectionId);
       await connectionStore.removeConnection(node.connectionId);
+      toast(t("connection.deleted"), 2000);
     } catch (e: any) {
       toast(t("connection.saveFailed", { message: e?.message || String(e) }), 5000);
     }
@@ -509,6 +510,7 @@ async function confirmDelete() {
 
 function copyName() {
   navigator.clipboard.writeText(props.node.label);
+  toast(t("connection.copied"), 2000);
 }
 
 async function duplicateConnection() {
@@ -518,6 +520,7 @@ async function duplicateConnection() {
   if (!config) return;
   const newConfig = { ...config, id: uuid(), name: `${config.name} (Copy)` };
   await connectionStore.addConnection(newConfig);
+  toast(t("connection.duplicated"), 2000);
 }
 
 // --- Table Management Operations ---
@@ -954,6 +957,7 @@ function disconnectConnection() {
     connectionStore.disconnect(props.node.connectionId);
     props.node.isExpanded = false;
     props.node.children = [];
+    toast(t("connection.disconnected"), 2000);
   }
 }
 
@@ -1220,6 +1224,7 @@ function newConnectionInGroup() {
 function confirmDeleteGroup() {
   connectionStore.deleteConnectionGroup(props.node.id);
   showDeleteGroupConfirm.value = false;
+  toast(t("connection.groupDeleted"), 2000);
 }
 
 const showDeleteGroupConfirm = ref(false);

src/i18n/locales/en.ts

@@ -134,6 +134,11 @@ export default {
     lastError: "Connection error",
     clearError: "Clear connection error",
     saveFailed: "Failed to save connection: {message}",
+    deleted: "Connection deleted",
+    copied: "Copied",
+    disconnected: "Disconnected",
+    duplicated: "Connection duplicated",
+    groupDeleted: "Group deleted",
     loadFailed: "Failed to load saved connections: {message}",
     sshTunnel: "SSH Tunnel",
     sshEnable: "Connect via SSH tunnel",
@@ -719,6 +724,7 @@ export default {
     memberDetail: "Member detail",
     viewMember: "View full value",
     copyMember: "Copy member",
+    editMember: "Edit",
   },
   mongo: {
     documents: "{count} documents",

src/i18n/locales/es.ts

@@ -134,6 +134,11 @@ export default {
     lastError: "Error de conexión",
     clearError: "Limpiar error de conexión",
     saveFailed: "Error al guardar la conexión: {message}",
+    deleted: "Conexión eliminada",
+    copied: "Copiado",
+    disconnected: "Desconectado",
+    duplicated: "Conexión duplicada",
+    groupDeleted: "Grupo eliminado",
     loadFailed: "Error al cargar las conexiones guardadas: {message}",
     sshTunnel: "Túnel SSH",
     sshEnable: "Conectar mediante túnel SSH",
@@ -720,6 +725,7 @@ export default {
     memberDetail: "Detalle del miembro",
     viewMember: "Ver valor completo",
     copyMember: "Copiar miembro",
+    editMember: "Editar",
   },
   mongo: {
     documents: "{count} documentos",

src/i18n/locales/zh-CN.ts

@@ -133,6 +133,11 @@ export default {
     lastError: "连接错误",
     clearError: "清除连接错误",
     saveFailed: "保存连接失败：{message}",
+    deleted: "连接已删除",
+    copied: "已复制",
+    disconnected: "已断开连接",
+    duplicated: "连接已复制",
+    groupDeleted: "分组已删除",
     loadFailed: "加载已保存连接失败：{message}",
     sshTunnel: "SSH 隧道",
     sshEnable: "通过 SSH 隧道连接",
@@ -705,6 +710,7 @@ export default {
     memberDetail: "成员详情",
     viewMember: "查看完整内容",
     copyMember: "复制成员",
+    editMember: "编辑",
   },
   mongo: {
     documents: "{count} 个文档",