Implement boxes management module with auto-numbered box creation

- Add boxes_crates database table with BIGINT IDs and 8-digit auto-numbered box_numbers
- Implement boxes CRUD operations (add, edit, update, delete, delete_multiple)
- Create boxes route handlers with POST actions for all operations
- Add boxes.html template with 3-panel layout matching warehouse locations module
- Implement barcode generation and printing with JsBarcode and QZ Tray integration
- Add browser print fallback for when QZ Tray is not available
- Simplify create box form to single button with auto-generation
- Fix JavaScript null reference errors with proper element validation
- Convert tuple data to dictionaries for Jinja2 template compatibility
- Register boxes blueprint in Flask app initialization

app/modules/warehouse/routes.py

@@ -0,0 +1,125 @@
+"""
+Warehouse Module Routes
+"""
+from flask import Blueprint, render_template, session, redirect, url_for, request, flash, jsonify
+from app.modules.warehouse.warehouse import (
+    get_all_locations, add_location, update_location, delete_location, 
+    delete_multiple_locations, get_location_by_id
+)
+import logging
+
+logger = logging.getLogger(__name__)
+
+warehouse_bp = Blueprint('warehouse', __name__, url_prefix='/warehouse')
+
+
+@warehouse_bp.route('/', methods=['GET'])
+def warehouse_index():
+    """Warehouse module main page - launcher for all warehouse operations"""
+    if 'user_id' not in session:
+        return redirect(url_for('main.login'))
+    
+    return render_template('modules/warehouse/index.html')
+
+
+@warehouse_bp.route('/set-boxes-locations', methods=['GET', 'POST'])
+def set_boxes_locations():
+    """Set boxes locations - add or update articles in warehouse inventory"""
+    if 'user_id' not in session:
+        return redirect(url_for('main.login'))
+    
+    return render_template('modules/warehouse/set_boxes_locations.html')
+
+
+@warehouse_bp.route('/locations', methods=['GET', 'POST'])
+def locations():
+    """Create and manage warehouse locations"""
+    if 'user_id' not in session:
+        return redirect(url_for('main.login'))
+    
+    message = None
+    message_type = 'info'
+    
+    if request.method == 'POST':
+        # Handle edit location
+        if request.form.get('edit_location'):
+            location_id = request.form.get('location_id', '')
+            size = request.form.get('edit_size', '').strip()
+            description = request.form.get('edit_description', '').strip()
+            
+            try:
+                location_id = int(location_id)
+                success, msg = update_location(location_id, None, size if size else None, description if description else None)
+                message = msg
+                message_type = 'success' if success else 'error'
+            except Exception as e:
+                message = f"Error: {str(e)}"
+                message_type = 'error'
+        # Handle delete locations
+        elif request.form.get('delete_locations'):
+            delete_ids_str = request.form.get('delete_ids', '')
+            try:
+                location_ids = [int(id.strip()) for id in delete_ids_str.split(',') if id.strip().isdigit()]
+                success, msg = delete_multiple_locations(location_ids)
+                message = msg
+                message_type = 'success' if success else 'error'
+            except Exception as e:
+                message = f"Error: {str(e)}"
+                message_type = 'error'
+        # Handle add location
+        elif request.form.get('add_location'):
+            location_code = request.form.get('location_code', '').strip()
+            size = request.form.get('size', '').strip()
+            description = request.form.get('description', '').strip()
+            
+            if not location_code:
+                message = "Location code is required"
+                message_type = 'error'
+            else:
+                success, msg = add_location(location_code, size if size else None, description if description else None)
+                message = msg
+                message_type = 'success' if success else 'error'
+    
+    # Get all locations
+    locations_list = get_all_locations()
+    
+    return render_template('modules/warehouse/locations.html', 
+                         locations=locations_list,
+                         message=message,
+                         message_type=message_type)
+
+
+@warehouse_bp.route('/boxes', methods=['GET', 'POST'])
+def boxes():
+    """Manage boxes and crates in the warehouse"""
+    if 'user_id' not in session:
+        return redirect(url_for('main.login'))
+    
+    return render_template('modules/warehouse/boxes.html')
+
+
+@warehouse_bp.route('/inventory', methods=['GET'])
+def inventory():
+    """View warehouse inventory - products, boxes, and locations"""
+    if 'user_id' not in session:
+        return redirect(url_for('main.login'))
+    
+    return render_template('modules/warehouse/inventory.html')
+
+
+@warehouse_bp.route('/reports', methods=['GET'])
+def reports():
+    """Warehouse activity and inventory reports"""
+    if 'user_id' not in session:
+        return redirect(url_for('main.login'))
+    
+    return render_template('modules/warehouse/reports.html')
+
+
+@warehouse_bp.route('/test-barcode', methods=['GET'])
+def test_barcode():
+    """Test barcode printing functionality"""
+    if 'user_id' not in session:
+        return redirect(url_for('main.login'))
+    
+    return render_template('modules/warehouse/test_barcode.html')