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lmxopcua/docs/v2
Joseph Doherty 5b8d708c58 Phase 0 entry gate + branch-naming convention fix
Record Phase 0 entry baseline: 820 passing, 2 pre-existing failures (Client.CLI.Tests.SubscribeCommandTests.Execute_PrintsSubscriptionMessage and Tests.MxAccess.MxAccessClientMonitorTests.Monitor_ProbeDataChange_PreventsStaleReconnect), 0 build errors, 167 build warnings. The two failures exist on v2 as of commit 1189dc8 and are unrelated to the rename. Phase 0 exit gate adapts the requirement to "failure count = baseline (2); pass count ≥ baseline (820)".

Branch-naming convention updated in implementation/overview.md and phase-0 doc: cannot use `v2/phase-N-slug` form because git treats `/` as path separator and `v2` already exists as a branch, blocking creation of any `v2/...` branch. Convention is now `phase-N-slug` (no v2/ prefix).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-17 13:46:26 -04:00
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Harden v2 design against the four findings from the 2026-04-17 Codex adversarial review of the db schema and admin UI: (1) DriverInstance.NamespaceId now enforces a same-cluster invariant in three layers (sp_ValidateDraft cross-table check using the new UX_Namespace_Generation_LogicalId_Cluster composite index, server-side namespace-selection API scoping that prevents bypass via crafted requests, and audit-log entries on cross-cluster attempts) so a draft for cluster A can no longer bind to cluster B's namespace and leak its URI into A's endpoint; (2) the Namespace table moves from cluster-level to generation-versioned with append-only logical-ID identity and locked NamespaceUri/Kind across generations so admins can no longer disable a namespace that a published driver depends on outside the publish/diff/rollback flow, the cluster-create workflow opens an initial draft containing the default namespaces instead of writing namespace rows directly, and the Admin UI Namespaces tab becomes hybrid (read-only over published, click-to-edit opens draft) like the UNS Structure tab; (3) ZTag/SAPID fleet-wide uniqueness moves from per-generation indexes (which silently allow rollback or re-enable to reintroduce duplicates) into a new ExternalIdReservation table that sits outside generation versioning, with sp_PublishGeneration reserving atomically via MERGE under transaction lock so a different EquipmentUuid attempting the same active value rolls the whole publish back, an FleetAdmin-only sp_ReleaseExternalIdReservation as the only path to free a value for reuse with audit trail, and a corresponding Release-reservation operator workflow in the Admin UI; (4) Equipment.EquipmentId is now system-generated as 'EQ-' + first 12 hex chars of EquipmentUuid, never operator-supplied or editable, removed from the Equipment CSV import schema entirely (rows match by EquipmentUuid for updates or create new equipment with auto-generated identifiers when no UUID is supplied), with a new Merge-or-Rebind-equipment operator workflow handling the rare case where two UUIDs need to be reconciled — closing the corruption path where typos and bulk-import renames were minting duplicate identities and breaking downstream UUID-keyed lineage. New decisions #122-125 with explicit "supersedes" notes for the earlier #107 (cluster-level namespace) and #116 (operator-set EquipmentId) frames they revise.
2026-04-17 11:08:58 -04:00