Add biz_state monitoring with shared LLDP parse and batch collect.

Introduce ParseProfile-based business state tasks that reuse LLDP parsing for snapshot batches (separate from topology Fabric writes), with scheduler, export, and a Phase1 UI under network tasks.

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

netx_api/lldp_shared.py

@@ -0,0 +1,35 @@
+"""Shared LLDP parse API (template + TextFSM + normalize).
+
+Topology discovery and biz_state monitoring both call this module.
+Downstream flows diverge: Fabric edges vs biz_state batches.
+"""
+
+from __future__ import annotations
+
+from .topology_lldp import (
+    STUB_PARSER_KEYS,
+    VENDOR_LLDP_PROFILES,
+    NeighborHit,
+    VendorLldpProfile,
+    can_discover_lldp,
+    get_vendor_profile,
+    lldp_command_for_vendor,
+    parse_neighbor_output,
+    parser_meta,
+    pick_neighbor_command,
+    resolve_vendor_key,
+)
+
+__all__ = [
+    "NeighborHit",
+    "VendorLldpProfile",
+    "VENDOR_LLDP_PROFILES",
+    "STUB_PARSER_KEYS",
+    "resolve_vendor_key",
+    "get_vendor_profile",
+    "lldp_command_for_vendor",
+    "pick_neighbor_command",
+    "can_discover_lldp",
+    "parser_meta",
+    "parse_neighbor_output",
+]