Improve docs management and add invoices repo (#51)

* Create a repository app for documents, first step

* Step two (broken)

* Complete the implementation of document repository and add invoices

* Add support for invoices

* Update submodules

ram/metadata/migrations/0024_remove_genericdocument_tags_delete_decoderdocument_and_more.py

@@ -0,0 +1,24 @@
+# Generated by Django 5.1.4 on 2025-02-09 13:47
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("metadata", "0023_shop"),
+        ("repository", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="genericdocument",
+            name="tags",
+        ),
+        migrations.DeleteModel(
+            name="DecoderDocument",
+        ),
+        migrations.DeleteModel(
+            name="GenericDocument",
+        ),
+    ]