feat: add custom exceptions

src/presentation/handler/application_exception_handler.py

@@ -0,0 +1,15 @@
+from fastapi import Request
+from fastapi.responses import ORJSONResponse
+from src.application.domain.exceptions import ApplicationException
+
+
+async def application_exception_handler(_request: Request, exc: ApplicationException) -> ORJSONResponse:
+    detail = exc.message
+    if 500 <= exc.status_code:
+        detail = 'Internal Server Error'
+
+    return ORJSONResponse(
+        status_code=exc.status_code,
+        content={'detail': detail},
+        headers=dict(exc.headers) if exc.headers else None,
+    )