Software update notification (#1002) (#1054)

* add `auto_check_updates` config value

* add `auto_check_updates` to dist config

* add `Update` `NotificationType`

* implement update checker and worker

* add endpoint, add to documentation, add worker

* clone update_status_lock Arc

* fmt

* add more tests

* remove todo

* add to docs

* frontend update notice

* improve name in documentation

* add user-agent to update check request

* add update check request timeout

* openapi trait bound

* do not enable `auto_check_updates` by default

* remove redundant documentation

* surface fetch of update status error

* fail on version with pre-release for now, add additional test cases

* Update configuration.md

---------

Co-authored-by: Markus Unterwaditzer <markus-tarpit+git@unterwaditzer.net>

daemon/src/stats.rs

@@ -4,6 +4,7 @@ use std::sync::Arc;
 use crate::battery::get_battery_status;
 use crate::error::RayhunterError;
 use crate::server::ServerState;
+use crate::update::UpdateStatus;
 use crate::{battery::BatteryState, qmdl_store::ManifestEntry};
 
 use axum::Json;
@@ -220,6 +221,20 @@ pub async fn get_qmdl_manifest(
     }))
 }
 
+#[cfg_attr(feature = "apidocs", utoipa::path(
+    get,
+    path = "/api/update-status",
+    tag = "Statistics",
+    responses(
+        (status = StatusCode::OK, description = "Success", body = UpdateStatus)
+    ),
+    summary = "Rayhunter update status",
+    description = "Check for available updates for Rayhunter."
+))]
+pub async fn get_update_status(State(state): State<Arc<ServerState>>) -> Json<UpdateStatus> {
+    Json(state.update_status_lock.read().await.clone())
+}
+
 #[cfg_attr(feature = "apidocs", utoipa::path(
     get,
     path = "/api/log",