refactor: fix duplicate keychecker (#2339)

* refactor: fix duplicate keychecker

- refactor KeyChecker to be more approachable
- only 1 sql query needed even if you use `get_key_type`
- rename `WalletType` to `KeyType` wallet type was misleading

fix test

sorting

* fixup!

* revert 404

tests/api/test_api.py

@@ -15,6 +15,10 @@ from ..helpers import (
 # create account POST /api/v1/account
 @pytest.mark.asyncio
 async def test_create_account(client):
+    settings.lnbits_allow_new_accounts = False
+    response = await client.post("/api/v1/account", json={"name": "test"})
+    assert response.status_code == 403
+    settings.lnbits_allow_new_accounts = True
     response = await client.post("/api/v1/account", json={"name": "test"})
     assert response.status_code == 200
     result = response.json()
@@ -39,6 +43,16 @@ async def test_create_wallet_and_delete(client, adminkey_headers_to):
     assert "balance_msat" in result
     assert "id" in result
     assert "adminkey" in result
+
+    invalid_response = await client.delete(
+        "/api/v1/wallet",
+        headers={
+            "X-Api-Key": result["inkey"],
+            "Content-type": "application/json",
+        },
+    )
+    assert invalid_response.status_code == 401
+
     response = await client.delete(
         "/api/v1/wallet",
         headers={