restore behavior when no device found as normal offline state instead of an error

src-tauri/src/fido/hid.rs

@@ -4,6 +4,8 @@ use anyhow::{Result, anyhow};
 use rand::Rng;
 use std::time::Duration;
 
+use crate::error::PFError;
+
 // HID Transport Constants
 const HID_REPORT_SIZE: usize = 64;
 const HID_USAGE_PAGE_FIDO: u16 = 0xF1D0;
@@ -35,7 +37,7 @@ impl HidTransport {
 			.find(|d| d.usage_page() == HID_USAGE_PAGE_FIDO)
 			.ok_or_else(|| {
 				log::warn!("No FIDO device found with Usage Page 0xF1D0.");
-				anyhow!("No FIDO device found. Is it plugged in?")
+				PFError::NoDevice
 			})?;
 
 		log::debug!(

src-tauri/src/fido/mod.rs

@@ -149,8 +149,12 @@ pub fn read_device_details() -> Result<FullDeviceStatus, PFError> {
 	log::info!("Starting FIDO device details read...");
 
 	let transport = HidTransport::open().map_err(|e| {
-		log::error!("Failed to open HID transport: {}", e);
-		PFError::Device(e.to_string())
+		if let Some(PFError::NoDevice) = e.downcast_ref::<PFError>() {
+			PFError::NoDevice
+		} else {
+			log::error!("Failed to open HID transport: {}", e);
+			PFError::Device(e.to_string())
+		}
 	})?;
 
 	// --- 1. Get Info ---