Scaffold vendor parser packages for cisco/huawei/h3c/juniper/nokia/ericsson.

Co-authored-by: Cursor <cursoragent@cursor.com>

netx_api/biz_state/parsers/juniper/__init__.py

@@ -0,0 +1,16 @@
+"""Juniper Junos parsers.
+
+LLDP already works via ``common.lldp_neighbors`` (``show lldp neighbors``).
+
+Add one module per show command, then register in ``PARSERS``.
+"""
+
+from __future__ import annotations
+
+from typing import Any, Callable
+
+NormalizeFn = Callable[..., list[dict[str, Any]]]
+
+PARSERS: dict[str, NormalizeFn] = {}
+
+__all__ = ["PARSERS"]