Fix CI/pulumi blockers and document test suites with latest PASS results.

Stabilize node status, cluster-wide Ceph OSD ids, and QEMU cpu utilization so
status/list no longer 500 on model strings; align pulumi defaults to pve1;
add bilingual testing docs with the 2026-07-18 ci-all + pulumi-tests pass.

app/handlers/ha.py

@@ -30,7 +30,7 @@ def _ha_groups(metadata: dict[str, Any]) -> dict[str, dict[str, Any]]:
 
 def _ha_digest(payload: dict[str, Any]) -> str:
     material = {key: value for key, value in payload.items() if key != "digest"}
-    return hashlib.sha1(
+    return hashlib.sha1(  # noqa: S324 - Proxmox HA digests use SHA-1
         json.dumps(material, sort_keys=True, separators=(",", ":")).encode()
     ).hexdigest()