Remove nginx site accessibility filtering to monitor all sites

- Remove check_site_accessibility function and filtering logic
- Monitor ALL nginx sites from config regardless of current status
- Site status determined by measure_site_latency, not accessibility filter
- Fixes missing git.cmtec.se when backend is down (502 errors)
- Sites with errors now show as failed instead of being filtered out

agent/src/collectors/service.rs

@@ -986,21 +986,11 @@ impl ServiceCollector {
         }
         
         
-        // Check which sites are actually accessible
-        let mut accessible_sites = Vec::new();
-        for site in sites {
-            if self.check_site_accessibility(&site).await {
-                accessible_sites.push(site); // Remove checkmark - status will be shown via sub_service row status
-            }
-        }
-        
-        // Limit to reasonable number
-        accessible_sites.truncate(15);
-        
-        if accessible_sites.is_empty() {
+        // Return all sites from nginx config (monitor all, regardless of current status)
+        if sites.is_empty() {
             None
         } else {
-            Some(accessible_sites)
+            Some(sites)
         }
     }
     
@@ -1048,34 +1038,6 @@ impl ServiceCollector {
         }
     }
     
-    async fn check_site_accessibility(&self, hostname: &str) -> bool {
-        // Create HTTP client with same timeout as site latency checks
-        let client = match reqwest::Client::builder()
-            .timeout(Duration::from_secs(2))
-            .build()
-        {
-            Ok(client) => client,
-            Err(_) => return false,
-        };
-        
-        // Try HTTPS first, then HTTP
-        for scheme in ["https", "http"] {
-            let url = format!("{}://{}", scheme, hostname);
-            
-            match client.get(&url).send().await {
-                Ok(response) => {
-                    let status = response.status().as_u16();
-                    // Check for successful HTTP status codes (same logic as before)
-                    if status == 200 || status == 301 || status == 302 || status == 403 {
-                        return true;
-                    }
-                }
-                Err(_) => continue,
-            }
-        }
-        
-        false
-    }
 
     async fn get_nginx_description(&self) -> Option<String> {
         // Get site count and active connections