chore: initialize monorepo with project scaffolding, configs, and CI setup

apps/wallet-daemon/src/app/api_jsonrpc.py

@@ -0,0 +1,49 @@
+from __future__ import annotations
+
+from typing import Any, Dict, Optional
+
+from fastapi import APIRouter, Depends
+
+from .deps import get_receipt_service
+from .models import ReceiptVerificationModel, from_validation_result
+from .receipts.service import ReceiptVerifierService
+
+router = APIRouter(tags=["jsonrpc"])
+
+
+def _response(result: Optional[Dict[str, Any]] = None, error: Optional[Dict[str, Any]] = None, *, request_id: Any = None) -> Dict[str, Any]:
+    payload: Dict[str, Any] = {"jsonrpc": "2.0", "id": request_id}
+    if error is not None:
+        payload["error"] = error
+    else:
+        payload["result"] = result
+    return payload
+
+
+@router.post("/rpc", summary="JSON-RPC endpoint")
+def handle_jsonrpc(
+    request: Dict[str, Any],
+    service: ReceiptVerifierService = Depends(get_receipt_service),
+) -> Dict[str, Any]:
+    method = request.get("method")
+    params = request.get("params") or {}
+    request_id = request.get("id")
+
+    if method == "receipts.verify_latest":
+        job_id = params.get("job_id")
+        if not job_id:
+            return _response(error={"code": -32602, "message": "job_id required"}, request_id=request_id)
+        result = service.verify_latest(str(job_id))
+        if result is None:
+            return _response(error={"code": -32004, "message": "receipt not found"}, request_id=request_id)
+        model = from_validation_result(result)
+        return _response(result=model.model_dump(), request_id=request_id)
+
+    if method == "receipts.verify_history":
+        job_id = params.get("job_id")
+        if not job_id:
+            return _response(error={"code": -32602, "message": "job_id required"}, request_id=request_id)
+        results = [from_validation_result(item).model_dump() for item in service.verify_history(str(job_id))]
+        return _response(result={"items": results}, request_id=request_id)
+
+    return _response(error={"code": -32601, "message": "Method not found"}, request_id=request_id)