fix of the file upload

Web/app.py

@@ -5392,7 +5392,6 @@ def upload_item():
     error_count = 0
     skipped_count = 0
 
-    # Create a structured log entry for upload session
     upload_session_id = str(uuid.uuid4())[:8]
     app.logger.info(f"Starting image upload session {upload_session_id} - Files: {len(images)}, User: {encrypt_text(username)}")
 
@@ -5410,7 +5409,6 @@ def upload_item():
         app.logger.info(f"{image_log_prefix} Processing: {image.filename}")
 
         try:
-            # 1. Validation
             is_allowed, error_message = allowed_file(image.filename, image, max_size_mb=cfg.IMAGE_MAX_UPLOAD_MB)
             if not is_allowed:
                 app.logger.warning(f"{image_log_prefix} Validation failed: {error_message}")
@@ -5421,29 +5419,29 @@ def upload_item():
 
             secure_name = secure_filename(image.filename)
 
-            # 2. Read directly into memory (Bypasses OS-level file quirks and iOS temp-file bugs)
+            image.seek(0)
+
             image_bytes = image.read()
 
-            # 3. Process, standardize, and optimize using Pillow in-memory
+            if not image_bytes:
+                app.logger.error(f"{image_log_prefix} Failed to read image (0 bytes).")
+                error_count += 1
+                continue
+
             optimized_io = io.BytesIO()
             with Image.open(io.BytesIO(image_bytes)) as img:
-                # Ensure safe color mode
                 if img.mode not in ('RGB', 'RGBA'):
                     img = img.convert('RGBA')
 
-                # Standardize dimensions (e.g., max width 500px)
                 max_width = 500
                 if img.width > max_width:
                     ratio = max_width / img.width
                     new_size = (max_width, int(img.height * ratio))
                     img = img.resize(new_size, Image.Resampling.LANCZOS)
 
-                # Export as WebP to a memory buffer
-                # (WebP naturally handles transparency, drastically reduces size, and bypasses PNG signature corruption)
                 img.save(optimized_io, format='WEBP', quality=85, optimize=True)
 
             optimized_io.seek(0)
-
             new_filename = f"{uuid.uuid4().hex}_{int(time.time())}.webp"
 
             file_id = fs.put(
@@ -5456,9 +5454,9 @@ def upload_item():
                 }
             )
 
-            image_filenames.append(file_id)
+            image_filenames.append(new_filename)
-            processed_count += 1
 
+            processed_count += 1
             final_size_kb = len(optimized_io.getvalue()) / 1024
             app.logger.info(
                 f"{image_log_prefix} Saved to GridFS as {new_filename} | ID: {file_id} | Size: {final_size_kb:.1f}KB")