fix: add missing MCP error translation keys

src/i18n/locales/en/mcp.json

@@ -5,7 +5,10 @@
 		"invalid_settings_validation": "Invalid MCP settings format: {{errorMessages}}",
 		"create_json": "Failed to create or open .roo/mcp.json: {{error}}",
 		"failed_update_project": "Failed to update project MCP servers",
-		"invalidJsonArgument": "Roo tried to use {{toolName}} with an invalid JSON argument. Retrying..."
+		"invalidJsonArgument": "Roo tried to use {{toolName}} with an invalid JSON argument. Retrying...",
+		"refresh_after_disable": "Failed to refresh MCP connections after disabling",
+		"refresh_after_enable": "Failed to refresh MCP connections after enabling",
+		"disconnect_servers_partial": "Failed to disconnect {{count}} MCP server(s). Check the output for details."
 	},
 	"info": {
 		"server_restarting": "Restarting {{serverName}} MCP server...",

src/services/mcp/McpHub.ts

@@ -1775,8 +1775,7 @@ export class McpHub {
 					t("mcp:errors.disconnect_servers_partial", {
 						count: disconnectionErrors.length,
 						errors: errorSummary,
-					}) ||
-						`Failed to disconnect ${disconnectionErrors.length} MCP server(s). Check the output for details.`,
+					}),
 				)
 			}
 
@@ -1785,19 +1784,15 @@ export class McpHub {
 				await this.refreshAllConnections()
 			} catch (error) {
 				console.error(`Failed to refresh MCP connections after disabling: ${error}`)
-				vscode.window.showErrorMessage(
-					t("mcp:errors.refresh_after_disable") || "Failed to refresh MCP connections after disabling",
-				)
+				vscode.window.showErrorMessage(t("mcp:errors.refresh_after_disable"))
 			}
 		} else {
 			// If MCP is being enabled, reconnect all servers
 			try {
 				await this.refreshAllConnections()
 			} catch (error) {
 				console.error(`Failed to refresh MCP connections after enabling: ${error}`)
-				vscode.window.showErrorMessage(
-					t("mcp:errors.refresh_after_enable") || "Failed to refresh MCP connections after enabling",
-				)
+				vscode.window.showErrorMessage(t("mcp:errors.refresh_after_enable"))
 			}
 		}
 	}