fix: catch all exceptions in identify_upload, log unexpected errors

plants/views/identify.py

@@ -1,3 +1,4 @@
+import logging
 import uuid
 from django.shortcuts import render, redirect
 from django.core.files.base import ContentFile
@@ -7,6 +8,8 @@ from plants.services.plantnet import PlantNetError
 from plants.services.vpc import search_species as vpc_search
 from plants.models import Plant, Species
 
+logger = logging.getLogger(__name__)
+
 _SESSION_KEYS = [
     'identify_matches', 'identify_image_paths', 'identify_selected',
     'identify_vpc_results', 'identify_vpc_idx',
@@ -45,13 +48,23 @@ def identify_upload(request):
         saved_paths.append({'path': name, 'organ': organ})
         images.append((file_bytes, organ))
 
+    error_msg = None
     try:
         matches = plantnet.identify(images)
     except PlantNetError as e:
+        error_msg = str(e)
+    except Exception as e:
+        logger.exception('identify_upload unexpected error: %s', e)
+        error_msg = 'Identification failed — please try again.'
+
+    if error_msg:
         for p in saved_paths:
+            try:
                 if default_storage.exists(p['path']):
                     default_storage.delete(p['path'])
-        return render(request, 'plants/identify_upload.html', {'error': str(e)})
+            except Exception:
+                pass
+        return render(request, 'plants/identify_upload.html', {'error': error_msg})
 
     request.session['identify_matches'] = matches
     request.session['identify_image_paths'] = saved_paths