remote_schema: explicitly inherit from RemoteSchemaRepository

temporal_activity_registration discovers methods to wrap by scanning for
Protocol classes in the MRO. Without explicit inheritance, the Protocol
never appears in the MRO and fetch is never registered as an activity,
causing NotFoundError at runtime.

Author: absoludity

src/julee/repositories/http/schema.py

@@ -2,8 +2,10 @@
 
 import httpx
 
+from julee.contrib.ceap.domain.repositories.remote_schema import RemoteSchemaRepository
 
-class HttpRemoteSchemaRepository:
+
+class HttpRemoteSchemaRepository(RemoteSchemaRepository):
     async def fetch(self, url: str) -> dict[str, Any]:
         async with httpx.AsyncClient() as client:
             response = await client.get(url)

src/julee/repositories/memory/remote_schema.py

@@ -1,7 +1,9 @@
 from typing import Any
 
+from julee.contrib.ceap.domain.repositories.remote_schema import RemoteSchemaRepository
 
-class MemoryRemoteSchemaRepository:
+
+class MemoryRemoteSchemaRepository(RemoteSchemaRepository):
     def __init__(self, schemas: dict[str, dict] | None = None) -> None:
         self._schemas: dict[str, dict] = schemas or {}