docs: update FEATURES.md and USER_GUIDE.md for scan redirect feature

docs/FEATURES.md

@@ -21,7 +21,7 @@ Three ways to add an asset:
 
 | Method | Description |
 |--------|-------------|
-| **Barcode** | Scan barcodes via device camera (ZXing library). Auto-lookup or prompt to create new. |
+| **Barcode** | Scan barcodes via device camera (ZXing library). Found assets redirect to detail view; unknown codes prompt to create new. |
 | **OCR** | Upload a photo of a machine ID sticker; text is extracted via Tesseract OCR. |
 | **Manual** | Full form with all fields. |
 

docs/USER_GUIDE.md

@@ -84,8 +84,10 @@ The app offers three ways to add an asset:
 1. Tap the **Barcode** toggle on the Add Asset tab
 2. Tap **Tap to start camera** and grant camera permission
 3. Point the camera at the asset's barcode sticker
-4. The scanner auto-detects the barcode and fills in the machine ID
-5. Confirm the details and tap **Create Asset**
+4. The scanner auto-detects the barcode and looks it up in the database
+   - **Asset found** → automatically redirected to the detailed asset view on the Assets tab (with auto check-in if GPS available)
+   - **Not found** → shown the Create New Asset form with the scanned code pre-filled
+5. From the detail view, you can tap **Check In**, **Edit**, or **Delete**
 
 ### Option B: OCR (photo of label)