Fix barcode format and improve scannability

- Changed sequential numbering from slash to hyphen format (TEST-ORD-004-0001)
- Increased horizontal barcode bar width from 0.25mm to 0.30mm for better scanning
- Increased vertical barcode bar width from 0.15mm to 0.30mm for reliable readability
- Changed from 3-digit to 4-digit padding for piece numbers (0001 instead of 001)
- Removed aggressive scaling that was distorting barcode bars
- Barcodes now use optimal settings for thermal printers and handheld scanners

initialize_db.py

@@ -414,7 +414,7 @@ def create_tables():
                 open_for_order TINYINT(1) DEFAULT 1,
                 line_number INT,
                 printed_labels TINYINT(1) DEFAULT 0,
-                data_livrara DATE,
+                data_livrare DATE,
                 dimensiune VARCHAR(50),
                 created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
                 updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,