fix: corriger erreurs ESLint sync (apostrophes, imports inutilisés)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/(dashboard)/sync/page.tsx

@@ -120,7 +120,7 @@ export default function SyncPage() {
         {step === 1 && (
           <div className="flex flex-col items-center gap-4 py-8">
             <p className="text-slate-400 text-sm text-center max-w-md">
-              Lit Google Sheets et compare avec le catalogue Shopify actuel pour générer l'aperçu des changements.
+              Lit Google Sheets et compare avec le catalogue Shopify actuel pour générer l&apos;aperçu des changements.
             </p>
             {error && (
               <div className="bg-red-950 border border-red-800 text-red-300 text-sm rounded-lg px-4 py-2 max-w-md">
@@ -146,7 +146,7 @@ export default function SyncPage() {
                 onClick={() => { setStep(1); setDiff(null) }}
                 className="px-4 py-2 text-sm bg-slate-800 hover:bg-slate-700 text-slate-300 rounded-lg"
               >
-                ← Relancer l'analyse
+                ← Relancer l&apos;analyse
               </button>
               <button
                 onClick={() => setStep(3)}

src/app/api/sync/history/route.ts

@@ -1,8 +1,8 @@
-import { NextRequest, NextResponse } from 'next/server'
+import { NextResponse } from 'next/server'
 import { prisma } from '@/lib/prisma'
 import type { SyncHistoryEntry, SyncLogEntry } from '@/types/sync'
 
-export async function GET(_req: NextRequest) {
+export async function GET() {
   try {
     const runs = await prisma.syncRun.findMany({
       orderBy: { createdAt: 'desc' },

src/app/api/sync/preview/route.ts

@@ -1,9 +1,9 @@
-import { NextRequest, NextResponse } from 'next/server'
+import { NextResponse } from 'next/server'
 import { readSheetProducts } from '@/lib/googleSheets'
 import { fetchAllShopifyProducts } from '@/lib/shopifySync'
 import { computeDiff } from '@/lib/syncDiff'
 
-export async function GET(_req: NextRequest) {
+export async function GET() {
   try {
     const [sheetProducts, shopifyProducts] = await Promise.all([
       readSheetProducts(),

src/components/sync/DiffTable.tsx

@@ -1,6 +1,6 @@
 'use client'
 import { useState } from 'react'
-import type { SyncChange, SyncChangeType, DiffResult } from '@/types/sync'
+import type { SyncChangeType, DiffResult } from '@/types/sync'
 
 interface DiffTableProps {
   diff: DiffResult