feat(api): implement DELETE endpoint for removing specific items by URL

src/app/api/urls/[encodedUrl]/items/[itemId]/route.ts

@@ -0,0 +1,44 @@
+//Handles DELETE requests for specific items
+import { NextRequest, NextResponse } from 'next/server';
+import { deleteItemByUrl } from '@/lib/database';
+
+// DELETE /api/urls/[encodedUrl]/items/[itemId] - Delete a specific item
+export async function DELETE(
+  request: NextRequest,
+  { params }: { params: { encodedUrl: string; itemId: string } }
+) {
+  const url = decodeURIComponent(params.encodedUrl);
+  const itemId = params.itemId;
+  
+  console.log('[API] Deleting item', itemId, 'from URL', url);
+
+  try {
+    if (!itemId) {
+      return NextResponse.json(
+        { error: 'Item ID is required' },
+        { status: 400 }
+      );
+    }
+
+    await deleteItemByUrl(url, itemId);
+    
+    console.log('[API] Successfully deleted item:', itemId);
+    
+    return NextResponse.json(
+      { message: 'Item deleted', itemId: itemId },
+      { status: 200 }
+    );
+  } catch (error) {
+    console.log('[API] Delete error:', error);
+    
+    return NextResponse.json(
+      { 
+        error: 'Failed to delete item',
+        details: error instanceof Error ? error.message : 'Unknown error',
+        itemId: itemId,
+        url: url
+      },
+      { status: 500 }
+    );
+  }
+}