chore: satisfy upstream lint (black, mypy, prettier, ruff)

- black/prettier reformatting across new aio code
- type annotations on db.fetchone/fetchall callsites in crud.py
- explicit dict[str, list[str]] for tag_lists in nostr_sync.py
- type:ignore[attr-defined] on Account.prvkey access — the field is
  added by the aio-fork lnbits.core.models.Account; upstream lnbits
  does not yet have it, so consumers without the fork must add a
  prvkey column to accounts before the Nostr publisher can sign.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

models.py

@@ -118,9 +118,7 @@ class CreateTicket(BaseModel):
         email = values.get("email")
         user_id = values.get("user_id")
         if not user_id and not (name and email):
-            raise ValueError(
-                "Either user_id or both name and email must be provided"
-            )
+            raise ValueError("Either user_id or both name and email must be provided")
         if user_id and (name or email):
             raise ValueError("Cannot provide both user_id and name/email")
         return values