feat: adds onions list to api

app/models/onions.py

@@ -1,6 +1,6 @@
 import base64
 import hashlib
-from typing import Optional
+from typing import Optional, TypedDict
 
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
@@ -10,6 +10,12 @@ from app.models import AbstractConfiguration, AbstractResource
 from app.models.base import Group
 
 
+class OnionDict(TypedDict):
+    Id: int
+    DomainName: str
+    OnionName: str
+
+
 class Onion(AbstractConfiguration):
     @property
     def brn(self) -> BRN:
@@ -49,6 +55,13 @@ class Onion(AbstractConfiguration):
         onion = base64.b32encode(result).decode("utf-8").strip("=")
         return onion.lower()
 
+    def to_dict(self) -> OnionDict:
+        return {
+            "Id": self.id,
+            "DomainName": self.domain_name,
+            "OnionName": self.onion_name,
+        }
+
 
 class Eotk(AbstractResource):
     group_id: Mapped[int] = mapped_column(db.Integer(), db.ForeignKey("group.id"))