Remove unused imports from UnifiedDatabaseNode and UnifiedDatabaseService for cleaner code

src/components/nodes/UnifiedDatabaseNode.tsx

@@ -1,5 +1,4 @@
 import React from "react";
-import { BaseNode } from "./BaseNode";
 import { NodeData } from "../../types";
 import { DatabaseOperation } from "../../types/database";
 import {
@@ -10,7 +9,6 @@ import {
   Search,
   Plus,
   Edit,
-  Trash2,
   BarChart3,
   GitBranch,
 } from "lucide-react";

src/services/database/UnifiedDatabaseService.ts

@@ -5,7 +5,6 @@ import {
   DatabaseResponse,
   DatabaseOperation,
 } from "../../types/database";
-import { CommandExecutionResult } from "../processors/commands/DatabaseCommand";
 
 export class UnifiedDatabaseService {
   /**