Fix: Untoggle clean mode after use

The clean mode toggle should be switched off after the clean procedure is complete, instead of being disabled.

src/pages/SystemView.tsx

@@ -1,3 +1,4 @@
+
 import { useParams, useNavigate } from "react-router-dom";
 import { useEffect, useState } from "react";
 import { toast } from "@/hooks/use-toast";
@@ -23,7 +24,6 @@ const SystemView = () => {
   const navigate = useNavigate();
   const queryClient = useQueryClient();
   const [cleanMode, setCleanMode] = useState(false);
-  const [cleanModeUsed, setCleanModeUsed] = useState(false);
 
   if (!system) {
     navigate("/");
@@ -106,6 +106,8 @@ const SystemView = () => {
     const pastedText = e.clipboardData?.getData('text');
     if (!pastedText?.trim()) return;
 
+    const wasCleanMode = cleanMode;
+
     try {
       const systemId = await getSystemId(system);
       const lines = pastedText.trim().split('\n').filter(line => line.trim());
@@ -133,7 +135,7 @@ const SystemView = () => {
       }
 
       // If clean mode is enabled, delete signatures not in the pasted list
-      if (cleanMode && !cleanModeUsed) {
+      if (wasCleanMode) {
         const existingSignatures = await pb.collection('signature').getFullList({
           filter: `system='${systemId}'`
         });
@@ -149,8 +151,7 @@ const SystemView = () => {
           console.log(`Deleted ${signaturesToDelete.length} signatures not in pasted data`);
         }
         
-        // Disable clean mode after use
-        setCleanModeUsed(true);
+        // Turn off clean mode after use
         setCleanMode(false);
       }
 
@@ -182,7 +183,7 @@ const SystemView = () => {
     return () => {
       document.removeEventListener('paste', handlePaste);
     };
-  }, [system, cleanMode, cleanModeUsed]);
+  }, [system, cleanMode]);
 
   return (
     <div className="min-h-screen bg-gradient-to-br from-slate-900 via-slate-800 to-slate-900">
@@ -196,7 +197,6 @@ const SystemView = () => {
                 id="clean-mode" 
                 checked={cleanMode} 
                 onCheckedChange={setCleanMode}
-                disabled={cleanModeUsed}
               />
               <Label htmlFor="clean-mode" className="text-sm text-slate-300">
                 Clean mode