add http-api

http-api/http_models.py

@@ -0,0 +1,12 @@
+from pydantic import BaseModel
+
+
+class SearchResponse(BaseModel):
+    total_hits: int
+    total_pages: int
+    hits: list[dict]
+
+
+class RecordResponse(BaseModel):
+    items: list[dict]
+    last_key: str | None