Fix print_lost_labels compact styling and production data import

- Added compact table styling to print_lost_labels page (smaller fonts, reduced padding)
- Fixed production data import missing fields (production_order_line, line_number)
- Added better error handling and logging for Excel file imports
- Skip empty rows in production data import
- Log all columns and columns with data for debugging

py_app/app/print_module.py

@@ -7,8 +7,13 @@ def get_db_connection():
     settings = {}
     with open(settings_file, 'r') as f:
         for line in f:
-            key, value = line.strip().split('=', 1)
-            settings[key] = value
+            line = line.strip()
+            # Skip empty lines and comments
+            if not line or line.startswith('#'):
+                continue
+            if '=' in line:
+                key, value = line.split('=', 1)
+                settings[key] = value
     return mariadb.connect(
         user=settings['username'],
         password=settings['password'],
@@ -23,6 +28,10 @@ def get_unprinted_orders_data(limit=100):
     Returns list of order dictionaries where printed_labels != 1
     """
     try:
+        import sys
+        sys.stderr.write(f"DEBUG print_module: get_unprinted_orders_data called with limit={limit}\n")
+        sys.stderr.flush()
+        
         conn = get_db_connection()
         cursor = conn.cursor()
         
@@ -30,8 +39,14 @@ def get_unprinted_orders_data(limit=100):
         cursor.execute("SHOW COLUMNS FROM order_for_labels LIKE 'printed_labels'")
         column_exists = cursor.fetchone()
         
+        sys.stderr.write(f"DEBUG print_module: printed_labels column exists={bool(column_exists)}\n")
+        sys.stderr.flush()
+        
         if column_exists:
             # Use printed_labels column
+            sys.stderr.write(f"DEBUG print_module: Executing query with printed_labels != 1\n")
+            sys.stderr.flush()
+            
             cursor.execute("""
                 SELECT id, comanda_productie, cod_articol, descr_com_prod, cantitate,
                        com_achiz_client, nr_linie_com_client, customer_name,
@@ -43,6 +58,9 @@ def get_unprinted_orders_data(limit=100):
                 LIMIT %s
             """, (limit,))
         else:
+            sys.stderr.write(f"DEBUG print_module: Executing fallback query (no printed_labels column)\n")
+            sys.stderr.flush()
+            
             # Fallback: get all orders if no printed_labels column
             cursor.execute("""
                 SELECT id, comanda_productie, cod_articol, descr_com_prod, cantitate,
@@ -55,7 +73,21 @@ def get_unprinted_orders_data(limit=100):
             """, (limit,))
         
         orders = []
-        for row in cursor.fetchall():
+        rows = cursor.fetchall()
+        sys.stderr.write(f"DEBUG print_module: Query returned {len(rows)} rows\n")
+        sys.stderr.flush()
+        
+        # Also write to file for debugging
+        try:
+            with open('/app/print_module_debug.log', 'w') as f:
+                f.write(f"Query returned {len(rows)} rows\n")
+                f.write(f"Column exists: {column_exists}\n")
+                if rows:
+                    f.write(f"First row: {rows[0]}\n")
+        except:
+            pass
+        
+        for row in rows:
             if column_exists:
                 orders.append({
                     'id': row[0],
@@ -100,6 +132,21 @@ def get_unprinted_orders_data(limit=100):
         return orders
         
     except Exception as e:
+        import sys
+        import traceback
+        error_trace = traceback.format_exc()
+        
+        sys.stderr.write(f"ERROR in get_unprinted_orders_data: {e}\n{error_trace}\n")
+        sys.stderr.flush()
+        
+        # Write to file
+        try:
+            with open('/app/print_module_error.log', 'w') as f:
+                f.write(f"ERROR: {e}\n")
+                f.write(f"Traceback:\n{error_trace}\n")
+        except:
+            pass
+        
         print(f"Error retrieving unprinted orders: {e}")
         return []