feat: Add local barcode plugin

plugins/ctbk_barcode.py

@@ -0,0 +1,25 @@
+from plugin import InvenTreePlugin
+from plugin.mixins import BarcodeMixin
+from part.models import Part
+import structlog
+
+logger = structlog.get_logger("ctbk.barcode")
+
+
+class CtbkBarcodePlugin(BarcodeMixin, InvenTreePlugin):
+    TITLE = "CTBK IPN Barcode Plugin"
+    NAME = "ctbk-ipn-barcode-plugin"
+    DESCRIPTION = "Supports the CTBK IPN format directly in barcodes"
+    VERSION = "0.0.1"
+    AUTHOR = "kleines Filmröllchen"
+
+    def scan(self, barcode_data):
+        if barcode_data.startswith("963e5440-"):
+            try:
+                instance = Part.objects.get(IPN=barcode_data.strip())
+                label = Part.barcode_model_type()
+
+                return {label: instance.format_matched_response()}
+            except Part.DoesNotExist:
+                logger.error("could not find a part for barcode %s", barcode_data)
+                pass