fix: send pageviews to the analytics API correctly

- Use the correct endpoint (analytics.mattitja.se instead of the
  non-existent .cloud domain)
- Authenticate with the site ingest secret as a Bearer token so the API
  trusts the forwarded visitor IP and user agent
- Forward the visitor Accept-Language header (required by bot detection)
- Only track successful GET requests rendering HTML
- Short timeouts and a file-based circuit breaker that pauses sending
  after connection failures or 5xx responses, so no queue, worker or
  cache is needed and a down API never slows the host site
- Log rejected requests instead of failing silently

tests/Feature/InstallCommandTest.php

@@ -45,7 +45,8 @@ it('adds env variable if .env exists and key is missing', function () {
 
     $envContent = File::get($this->envPath);
 
-    expect($envContent)->toContain('MATTITJA_ANALYTICS_SITE_KEY=');
+    expect($envContent)->toContain('MATTITJA_ANALYTICS_SITE_KEY=')
+        ->toContain('MATTITJA_ANALYTICS_INGEST_SECRET=');
 
     File::put($this->envPath, $originalContent);
 });