Update version to 0.1.22 and fix system metric status calculation

- Fix /tmp usage status to use proper thresholds instead of hardcoded Ok status
- Fix wear level status to use configurable thresholds instead of hardcoded values
- Add dedicated tmp_status field to SystemWidget for proper /tmp status display
- Remove host-level hourglass icon during service operations
- Implement immediate service status updates after start/stop/restart commands
- Remove active users display and collection from NixOS section
- Fix immediate host status aggregation transmission to dashboard

agent/src/collectors/disk.rs

@@ -556,8 +556,8 @@ impl Collector for DiskCollector {
 
                 // Drive wear level (for SSDs)
                 if let Some(wear) = drive.wear_level {
-                    let wear_status = if wear >= 90.0 { Status::Critical }
-                                     else if wear >= 80.0 { Status::Warning }
+                    let wear_status = if wear >= self.config.wear_critical_percent { Status::Critical }
+                                     else if wear >= self.config.wear_warning_percent { Status::Warning }
                                      else { Status::Ok };
                     
                     metrics.push(Metric {