feat(scrape): auto-discover HVM versions + add 9.0 to corpus

HVM (HPE Morpheus VM Essentials) 9.0.0 shipped June 2026; the MCP had
nothing about it. Add it and stop hand-adding a docId per release.

scrape/bundles.py now AUTO-DISCOVERS new versions (discover_specs, on by
default): it scans the DocPortal docId range above the highest known
bundle and classifies each abstract. On-by-default in CI's refresh.yml,
so future releases flow into the corpus with no code change. Gotchas
encoded:
  - classify on the abstract BODY, not the <h1> (a Release Notes h1 is
    just "v9.0.0 Release Notes" with no product name)
  - EXCLUDE the interleaved siblings that share the same version string:
    Morpheus Enterprise, Morpheus Central, Storage Integration Pack
  - failsoft: a scan error logs a warning and falls back to known bundles
  - self-healing + idempotent: prior bundles.json persists discoveries;
    the scan anchor rolls forward; re-runs add no duplicates

Discovered + scraped for 9.0.0:
  - User Manual   sd00008058en_us (414 pages; Deployment Guide now folded in)
  - Release Notes sd00008079en_us

corpus: +412 pages (9.0), sidecar topic_cluster peers re-linked to 9.0
across the 8.1.x bundles (shared GUIDs). Local reindex: 3645 chunks
(956 are 9.0.0); 9.0 content verified retrievable end-to-end.

Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01MNQRS6F7N9Uwh1SMn3xz2g

corpus/hvm_deployment_guide/GUID-AAEE49BC-286E-4C04-9664-4A2FEBDFDCA0.json

@@ -25,6 +25,11 @@
         "bundle_id": "hvm_user_manual_8_1_2",
         "page_id": "GUID-AAEE49BC-286E-4C04-9664-4A2FEBDFDCA0",
         "clustering_title": "Host Features"
+      },
+      {
+        "bundle_id": "hvm_user_manual_9_0_0",
+        "page_id": "GUID-AAEE49BC-286E-4C04-9664-4A2FEBDFDCA0",
+        "clustering_title": "Host Features"
       }
     ]
   }

corpus/hvm_deployment_guide/GUID-AC33B458-3F39-4BA6-A242-E00B613C60DA.json

@@ -25,6 +25,11 @@
         "bundle_id": "hvm_user_manual_8_1_2",
         "page_id": "GUID-AC33B458-3F39-4BA6-A242-E00B613C60DA",
         "clustering_title": "VM Features"
+      },
+      {
+        "bundle_id": "hvm_user_manual_9_0_0",
+        "page_id": "GUID-AC33B458-3F39-4BA6-A242-E00B613C60DA",
+        "clustering_title": "VM Features"
       }
     ]
   }