fix: Leer apps desde monitored_apps.json en lugar de AppManager en memoria

Problema:
- El panel web y logs.html no mostraban las apps descubiertas
- /api/apps solo listaba apps registradas vía API (AppManager en memoria)
- Las apps descubiertas por discovery solo estaban en monitored_apps.json
- El AppManager no conocía las apps existentes en systemd

Solución:
- Modificar /api/apps para leer directamente desde monitored_apps.json
- Consultar estado de systemd en tiempo real para cada app
- Modificar get_app_status para leer desde JSON y consultar métricas
- Buscar procesos por nombre de app o entry_point

Cambios:
- list_apps_handler: Lee desde ConfigManager, consulta systemd
- get_app_status_handler: Lee desde JSON, obtiene PID/CPU/RAM de sysinfo
- Retorna status correcto: Running, Stopped, Failed, Starting, Stopping
- Incluye puerto y service_name en respuesta de /api/apps

Ahora el panel web mostrará todas las apps (descubiertas + registradas)

src/api/handlers.rs

@@ -125,21 +125,62 @@ pub async fn restart_app_handler(
 }
 
 pub async fn get_app_status_handler(
-    State(state): State<Arc<ApiState>>,
+    State(_state): State<Arc<ApiState>>,
     Path(app_name): Path<String>,
 ) -> Result<Json<ApiResponse<AppStatusResponse>>, StatusCode> {
+    use crate::config::get_config_manager;
+    use crate::systemd::SystemCtl;
+    use crate::models::{AppStatus, ServiceStatus};
 
-    match state.app_manager.get_app_status(&app_name) {
-        Some(managed_app) => {
-            let response = AppStatusResponse {
-                name: managed_app.name,
-                status: managed_app.status.as_str().to_string(),
-                pid: managed_app.pid,
-                cpu_usage: managed_app.cpu_usage,
-                memory_usage: format!("{:.2} MB", managed_app.memory_usage as f64 / 1024.0 / 1024.0),
-                systemd_status: managed_app.systemd_status.as_str().to_string(),
-                last_updated: managed_app.last_updated,
+    let config_manager = get_config_manager();
+    let apps = config_manager.get_apps();
+
+    // Buscar la app en monitored_apps.json
+    let app = apps.iter().find(|a| a.name == app_name);
+
+    match app {
+        Some(app) => {
+            let service_name = format!("siax-app-{}.service", app.name);
+            let systemd_status = SystemCtl::status(&service_name);
+
+            // Obtener métricas del proceso
+            let mut sys = System::new_all();
+            sys.refresh_all();
+
+            let mut pid = None;
+            let mut cpu_usage = 0.0;
+            let mut memory_mb = 0.0;
+
+            // Buscar proceso por nombre de app
+            for (process_pid, process) in sys.processes() {
+                let cmd = process.cmd().join(" ");
+                if cmd.contains(&app.name) || cmd.contains(&app.entry_point) {
+                    pid = Some(process_pid.as_u32() as i32);
+                    cpu_usage = process.cpu_usage();
+                    memory_mb = process.memory() as f64 / 1024.0 / 1024.0;
+                    break;
+                }
+            }
+
+            let status = match systemd_status {
+                ServiceStatus::Active => "Running",
+                ServiceStatus::Inactive => "Stopped",
+                ServiceStatus::Failed => "Failed",
+                ServiceStatus::Activating => "Starting",
+                ServiceStatus::Deactivating => "Stopping",
+                ServiceStatus::Unknown => "Unknown",
             };
+
+            let response = AppStatusResponse {
+                name: app.name.clone(),
+                status: status.to_string(),
+                pid,
+                cpu_usage,
+                memory_usage: format!("{:.2} MB", memory_mb),
+                systemd_status: systemd_status.as_str().to_string(),
+                last_updated: chrono::Local::now().format("%Y-%m-%d %H:%M:%S").to_string(),
+            };
+
             Ok(Json(ApiResponse::success(response)))
         }
         None => Ok(Json(ApiResponse::error(
@@ -149,13 +190,49 @@ pub async fn get_app_status_handler(
 }
 
 pub async fn list_apps_handler(
-    State(state): State<Arc<ApiState>>,
-) -> Result<Json<ApiResponse<AppListResponse>>, StatusCode> {
+    State(_state): State<Arc<ApiState>>,
+) -> Result<Json<serde_json::Value>, StatusCode> {
+    use crate::config::get_config_manager;
+    use crate::systemd::SystemCtl;
 
-    let apps = state.app_manager.list_apps();
-    let total = apps.len();
+    // Leer apps desde monitored_apps.json (apps descubiertas + registradas)
+    let config_manager = get_config_manager();
+    let monitored_apps = config_manager.get_apps();
 
-    Ok(Json(ApiResponse::success(AppListResponse { apps, total })))
+    // Crear respuesta con información de cada app
+    let mut apps_with_status = Vec::new();
+
+    for app in monitored_apps {
+        // Verificar estado en systemd
+        let service_name = format!("siax-app-{}.service", app.name);
+        let systemd_status = SystemCtl::status(&service_name);
+
+        let status = match systemd_status {
+            crate::models::ServiceStatus::Active => "Running",
+            crate::models::ServiceStatus::Inactive => "Stopped",
+            crate::models::ServiceStatus::Failed => "Failed",
+            crate::models::ServiceStatus::Activating => "Starting",
+            crate::models::ServiceStatus::Deactivating => "Stopping",
+            crate::models::ServiceStatus::Unknown => "Unknown",
+        };
+
+        apps_with_status.push(serde_json::json!({
+            "name": app.name,
+            "status": status,
+            "port": app.port,
+            "service_name": app.service_name,
+        }));
+    }
+
+    let total = apps_with_status.len();
+
+    Ok(Json(serde_json::json!({
+        "success": true,
+        "data": {
+            "apps": apps_with_status,
+            "total": total
+        }
+    })))
 }
 
 pub async fn scan_processes_handler() -> Result<Json<ApiResponse<ProcessScanResponse>>, StatusCode> {