about : extract team carousel into TeamCarousel component (swiper)

Replace inline carousel logic with a dedicated TeamCarousel.svelte component.
Uses SwiperJS for mobile peek (1.4 slides), tablet (2) and desktop (4) layouts,
with touch swipe, pagination dots and prev/next buttons.

related to #53

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

package-lock.json

@@ -13,6 +13,7 @@
         "gsap": "^3.14.2",
         "navaid": "^1.2.0",
         "svelte": "^5.0.0",
+        "swiper": "^12.1.3",
         "vite": "7.0.4"
       },
       "devDependencies": {
@@ -1278,6 +1279,25 @@
         "node": ">=18"
       }
     },
+    "node_modules/swiper": {
+      "version": "12.1.3",
+      "resolved": "https://registry.npmjs.org/swiper/-/swiper-12.1.3.tgz",
+      "integrity": "sha512-XcWlVmkHFICI4fuoJKgbp8PscDcS4i7pBH8nwJRBi3dpQvhCySwsWRYm4bOf/BzKVWkHOYaFw7qz9uBSrY3oug==",
+      "funding": [
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/swiperjs"
+        },
+        {
+          "type": "open_collective",
+          "url": "http://opencollective.com/swiper"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">= 4.7.0"
+      }
+    },
     "node_modules/tinyglobby": {
       "version": "0.2.15",
       "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.15.tgz",