feat: v5.0.0 — Live Feed page, Folders & Tags, Link Archiving, API scopes

## Analytics — Live Activity Feed
- Dedicated /stats/live standalone page (mirrors /stats/logs pattern)
- Consistent 3-tab navigation across Statistics / Live Feed / Visit Logs
- checkForUpdates() with skipRender(): O(1) MAX(id) poll — ~100-byte response on no-change
- latestVisitId sentinel (-1) prevents unnecessary first-poll re-render
- Cache key versioned by latestVisitId — fixes bug where concurrent users
  could permanently miss a visit due to stale thundering-herd cache
- 3-second thundering-herd cache (key: url_id + date + filters + latestVisitId)
- Country flags via flagcdn.com (precomputed in PHP, Alpine.js CSP-safe onerror)
- time_ago precomputed in PHP — no Carbon::parse() double-instantiation in Blade
- SELECT only 12 needed columns instead of SELECT *; limit 25 rows
- wire:poll.5s.visible — polling stops when widget is off-screen

## Link Organization
- Folders: one folder per link, clickable → filtered link list, link count badge
- Tags: up to 5 tags per link, clickable → filtered link list, link count badge
- Archiving: soft-archive links instead of permanent deletion; restorable

## REST API
- Per-key API scopes: links:read-only (GET) / links:read-write (full CRUD)
- Per-key rate limiting: individual requests/minute per API key

## Translations
- Added stats_live_feed_poll_interval (EN: 'Updates every 5s', PL: 'Aktualizacja co 5s')

## Docs
- README.md: corrected API scopes/rate-limiting docs (features were already implemented)
- README.md: added Folders, Tags, Archiving to features list
- README.md: added v5.0.0 changelog entry

src/Models/ShortUrlCustomDomain.php

@@ -64,12 +64,43 @@ class ShortUrlCustomDomain extends Model
      */
     protected static function booted(): void
     {
-        $bust = static function (self $m): void {
+        static::saved(function (self $m): void {
             cache()->forget("filament-short-url:custom-domain:{$m->domain}");
-        };
 
-        static::saved($bust);
-        static::deleted($bust);
+            $domainChanged = $m->wasChanged('domain');
+            if ($domainChanged) {
+                $oldDomain = $m->getOriginal('domain');
+                if ($oldDomain) {
+                    cache()->forget("filament-short-url:custom-domain:{$oldDomain}");
+                }
+            }
+
+            // Invalidate the redirect cache keys for all short URLs mapped to this domain
+            // if the domain name changes or its active status is toggled.
+            if ($domainChanged || $m->wasChanged('is_active')) {
+                $hosts = [$m->domain];
+                if ($domainChanged && isset($oldDomain)) {
+                    $hosts[] = $oldDomain;
+                }
+
+                $shortUrls = $m->shortUrls()->get(['url_key']);
+                foreach ($shortUrls as $url) {
+                    foreach ($hosts as $host) {
+                        cache()->forget("filament-short-url:{$url->url_key}:{$host}");
+                    }
+                }
+            }
+        });
+
+        static::deleted(function (self $m): void {
+            cache()->forget("filament-short-url:custom-domain:{$m->domain}");
+
+            // Clear redirect caches for all URLs mapped to this deleted domain
+            $shortUrls = $m->shortUrls()->get(['url_key']);
+            foreach ($shortUrls as $url) {
+                cache()->forget("filament-short-url:{$url->url_key}:{$m->domain}");
+            }
+        });
     }
 
     /**