feat: add PoE config and power-cycle support for ProCurve REST API

Adds get_poe_status()/set_poe() to expose per-port PoE configuration
(enable state, priority, allocation method, allocated power) and allow
toggling it via the AOS-Switch REST API.

napalm_procurve/api_client.py

@@ -287,6 +287,19 @@ class ProcurveApiClient:
 
         return {k: v for k, v in result.items() if v["ipv4"] or v["ipv6"]}
 
+    # ------------------------------------------------------------------
+    # PoE
+    # ------------------------------------------------------------------
+
+    def get_poe_ports(self) -> Dict[str, Dict]:
+        """Return PoE configuration for all ports, keyed by port id."""
+        data = self.get("poe/ports")
+        return {p["port_id"]: p for p in data.get("port_poe", []) if p.get("port_id")}
+
+    def set_port_poe(self, port_id: str, payload: Dict[str, Any]) -> requests.Response:
+        """PUT PoE configuration changes for a single port."""
+        return self.put(f"ports/{port_id}/poe", json=payload)
+
     def get_arp_table(self, vrf: str = "") -> list:
         """Return NAPALM ARP table from the REST API."""
         arp_data = self.get("arp")