feat: Konten umbenennbar, Betrag-Spalte mit Euro im Kopf

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

finance/tests/test_crud_api.py

@@ -50,6 +50,18 @@ def test_rules_categorize(client):
     assert txs[0]["category_id"] == cat["id"]
 
 
+def test_patch_account_name(client):
+    acc = client.post("/api/accounts", headers=H, json={
+        "bank": "DKB", "iban": "DE71", "name": "DE71", "type": "giro"}).json()
+    r = client.patch(f"/api/accounts/{acc['id']}", headers=H,
+                     json={"name": "DKB Giro"})
+    assert r.status_code == 200 and r.json()["name"] == "DKB Giro"
+    assert client.patch("/api/accounts/9999", headers=H,
+                        json={"name": "x"}).status_code == 404
+    assert client.patch(f"/api/accounts/{acc['id']}", headers=H,
+                        json={"name": "  "}).status_code == 422
+
+
 def test_patch_transaction_category(client):
     cat = client.post("/api/categories", headers=H, json={"name": "Freizeit"}).json()
     acc = client.post("/api/accounts", headers=H, json={