fix(backend): repair remaining schema generation errors (#9453)

* Remove hardcoded currency enum from schema

* Convert schema custom key enums to int to allow customized keys to validate

* Convert stock status key enums to int to allow customizations to
validate in schema

* api version bump

* fix remaining operationId errors

* fix errors

* fix another error

* fix missing model

* ensure we do not ignore warnings anymore

* Restore enumerated help text for currencies

* Remove commented block of old code

* Restore custom key enumerated values to schema documentation

* Restore status key enumeration to schema documentation

* fix more enums

* Add debug definitions for schema generation

* fix schema generation for PluginRelationSerializer

* add migrations

* fix enum names for allauth schema duplications

* bump api version

---------

Co-authored-by: Joe Rogers <1337joe@gmail.com>

.vscode/launch.json

@@ -40,6 +40,28 @@
       "django": true,
       "justMyCode": false
     },
+    {
+      "name": "InvenTree invoke schema",
+      "type": "debugpy",
+      "request": "launch",
+      "program": "${workspaceFolder}/.venv/lib/python3.9/site-packages/invoke/__main__.py",
+      "cwd": "${workspaceFolder}",
+      "args": [
+        "dev.schema","--ignore-warnings"
+      ],
+      "justMyCode": false
+    },
+    {
+      "name": "schema generation",
+      "type": "debugpy",
+      "request": "launch",
+      "program": "${workspaceFolder}/src/backend/InvenTree/manage.py",
+      "args": [
+        "schema",
+        "--file","src/frontend/schema.yml"
+      ],
+      "justMyCode": false
+    },
     {
       "name": "InvenTree Frontend - Vite",
       "type": "chrome",