feat: enhance TransactionsPage with total count and amount display; update CategoryCard and ParentCategoryRow to link to transaction filters by category; implement localStorage for transaction period preference

components/categories/category-card.tsx

@@ -1,5 +1,6 @@
 "use client";
 
+import Link from "next/link";
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
 import { CategoryIcon } from "@/components/ui/category-icon";
@@ -37,7 +38,13 @@ export function CategoryCard({
             size={isMobile ? 10 : 12}
           />
         </div>
-        <span className="text-xs md:text-sm truncate">{category.name}</span>
+        <Link
+          href={`/transactions?categoryIds=${category.id}`}
+          className="text-xs md:text-sm truncate hover:underline"
+          onClick={(e) => e.stopPropagation()}
+        >
+          {category.name}
+        </Link>
         {!isMobile && (
           <span className="text-xs md:text-sm text-muted-foreground shrink-0">
             {stats.count} opération{stats.count > 1 ? "s" : ""} •{" "}

components/categories/parent-category-row.tsx

@@ -1,5 +1,6 @@
 "use client";
 
+import Link from "next/link";
 import { Button } from "@/components/ui/button";
 import {
   DropdownMenu,
@@ -73,9 +74,13 @@ export function ParentCategoryRow({
                   size={isMobile ? 10 : 14}
                 />
               </div>
-              <span className="font-medium text-xs md:text-sm truncate">
+              <Link
+                href={`/transactions?categoryIds=${parent.id}`}
+                className="font-medium text-xs md:text-sm truncate hover:underline"
+                onClick={(e) => e.stopPropagation()}
+              >
                 {parent.name}
-              </span>
+              </Link>
               {!isMobile && (
                 <span className="text-xs md:text-sm text-muted-foreground shrink-0">
                   {children.length} • {stats.count} opération