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

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

@@ -0,0 +1,17 @@
+from __future__ import annotations
+
+from fastapi import FastAPI
+
+from .api_jsonrpc import router as jsonrpc_router
+from .api_rest import router as receipts_router
+from .settings import settings
+
+
+def create_app() -> FastAPI:
+    app = FastAPI(title=settings.app_name, debug=settings.debug)
+    app.include_router(receipts_router)
+    app.include_router(jsonrpc_router)
+    return app
+
+
+app = create_app()