feat(approvals): integrate approval-hold detection and auto-remediation into fleet alert, loop diagnostics, and muse API

bin/netvm-registry.py

@@ -14,6 +14,7 @@ CLI:
     netvm-registry.py               # prints "node:port" lines for active nodes
     netvm-registry.py <node>        # prints just the port (for bash)
 """
+import hashlib
 import os
 import re
 import sys
@@ -45,9 +46,12 @@ def load(registry_path=None):
                     port_n = int(port)
                 except ValueError:
                     continue
+                tag = hashlib.sha256(node.encode()).hexdigest()[:8]
+                idx = int(tag[:3], 16) % 200 + 10
+                peer_ip = f"10.201.{idx}.2"
                 nodes[node] = {"netns": netns, "egress_ip": egress,
                                "cdp_port": port_n, "status": status,
-                               "agent": agent}
+                               "agent": agent, "peer_ip": peer_ip}
     except FileNotFoundError:
         pass
     return nodes
@@ -59,6 +63,12 @@ def port_for(node, registry_path=None):
     return rec["cdp_port"] if rec else None
 
 
+def peer_ip_for(node, registry_path=None):
+    """CDP peer IP for a node, or None if the node isn't registered."""
+    rec = load(registry_path).get(node)
+    return rec["peer_ip"] if rec else None
+
+
 def active_nodes(registry_path=None):
     """{node: port} for nodes with status == active."""
     return {n: r["cdp_port"] for n, r in load(registry_path).items()