fix: parse_model_from_version handles both HP banner orderings

Old switches show: "HP J9298A Switch 2520G-8-PoE" (model after Switch)
Newer switches:    "HP J9565A 2520G-8-PoE Switch" (model before Switch)

New approach: strip vendor prefix + J-code + "Switch" keyword, leaving
just the product name. Returns tuple (model, part_number).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

napalm_procurve/parsers.py

@@ -188,20 +188,30 @@ def parse_version(output: str) -> str:
     return ""
 
 
-def parse_model_from_version(output: str) -> str:
-    """Extract model from ``show version`` first line.
+def parse_model_from_version(output: str) -> tuple[str, str]:
+    """Extract (model, part_number) from ``show version`` first line.
 
-    Example: ``HP J9565A 2520G-8-PoE Switch``  → ``2520G-8-PoE``
+    Handles both orderings of the HP banner:
+      ``HP J9565A 2520G-8-PoE Switch`` → ("2520G-8-PoE", "J9565A")
+      ``HP J9298A Switch 2520G-8-PoE`` → ("2520G-8-PoE", "J9298A")
+      ``Aruba 2530-8-PoE+ Switch``     → ("2530-8-PoE+", "")
     """
     first = output.strip().splitlines()[0] if output.strip() else ""
-    m = re.search(r"HP\s+\S+\s+(\S+)\s+Switch", first, re.I)
-    if m:
-        return m.group(1)
-    # Aruba format: "Aruba 2530-8-PoE+ Switch"
-    m = re.search(r"(?:Aruba|HP)\s+(\d\S+)\s+(?:Switch|)", first, re.I)
-    if m:
-        return m.group(1)
-    return ""
+    if not first:
+        return "", ""
+
+    # Extract J-code part number
+    _PN_RE_V = re.compile(r"\b(J\d{4}[A-Z]{1,2})\b")
+    pn_match = _PN_RE_V.search(first)
+    part_number = pn_match.group(1) if pn_match else ""
+
+    # Strip vendor prefix, J-code and "Switch" keyword to get the product name
+    cleaned = re.sub(r"\b(?:HP|HPE|Aruba)\b", "", first, flags=re.I)
+    cleaned = _PN_RE_V.sub("", cleaned)
+    cleaned = re.sub(r"\bSwitch\b", "", cleaned, flags=re.I)
+    cleaned = re.sub(r"\s{2,}", " ", cleaned).strip(" -()")
+
+    return cleaned, part_number
 
 
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