Add device, platform, and country analytics to link show page.

Record parsed user-agent and geo data on clicks, then surface breakdowns and richer recent-click context on per-link and account analytics views.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Support/Link/LinkGeoResolver.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Support\Link;
+
+use Illuminate\Http\Request;
+
+final class LinkGeoResolver
+{
+    public static function countryCode(Request $request): ?string
+    {
+        foreach (['CF-IPCountry', 'X-Country-Code', 'CloudFront-Viewer-Country'] as $header) {
+            $value = $request->header($header);
+            if (! is_string($value) || strlen($value) !== 2) {
+                continue;
+            }
+
+            $code = strtoupper($value);
+            if (! in_array($code, ['XX', 'T1'], true)) {
+                return $code;
+            }
+        }
+
+        return null;
+    }
+
+    public static function countryLabel(?string $code): string
+    {
+        if ($code === null || $code === '') {
+            return 'Unknown';
+        }
+
+        if (function_exists('locale_get_display_region')) {
+            $name = locale_get_display_region('_'.$code, 'en');
+
+            return is_string($name) && $name !== '' ? $name : $code;
+        }
+
+        return $code;
+    }
+}