Super-domain RBAC + UnifiedBridge: spec + Tier A starter (D-SDR-1, D-SDR-2)

.claude/board/INTEGRATION_PLANS.md

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+## v1 — Super-Domain RBAC + Multi-Tenancy (authored 2026-05-13)
+
+**Author:** main thread (Opus 4.7 1M), session 2026-05-13 (branch `claude/lance-datafusion-integration-gv0BF`)
+**Status:** Active
+**Scope:** 4-level addressing hierarchy (meta-anchors → super domain → OGIT basin → within-basin slot) with explicit byte-sized DTOs, RBAC + multi-tenant Chinese walls wired onto the super-domain boundary. 6 bytes per row (4-byte `TenantId` + 2-byte `OwlIdentity`), inline per-family codebook with label+schema+verbs, single masked DataFusion predicate enforces tenant + super-domain + role + slot in one vector pass. Foundry-parity selling point at the enforcement surface, sub-microsecond hot path. Locks the 2-consumer ticket-system constraint (`hiro-rs` absorbs OSLC-* off-label, `hubspot-rs` is fresh basin) and collapses 4 OSLC-* namespaces into a single Hiro basin with provenance lineage.
+**Path:** `.claude/plans/super-domain-rbac-tenancy-v1.md`
+**Deliverables:** D-SDR-1..D-SDR-12 (Tier A DTOs / Tier B TTL namespaces / Tier C consumer crates / Tier D compliance + audit / Tier E cross-tenant federation Phase 2)
+**Substrate:** Builds on shipped `lance-graph-ontology::namespace::SchemaPtr`, `bridges::OgitBridge` + `BridgeFromRegistry`, `holograph::dntree::WellKnown` (promoted to `SuperDomain` enum), `lance-graph-callcenter::dn_path::DnPath` compression chain, `bgz-tensor::HhtlDEntry` bit-packed-hierarchy pattern, `lance-graph-contract::cam` CAM-PQ codec contract.
+**Cross-ref:** `palantir-parity-cascade-v2.md` (this spec adds the enforcement surface), `lance-graph-ontology-v5.md` (this spec sits above v5; v5 unchanged), `GLUE_LAYER_OGIT_TO_OWL_SPEC.md` (source for OWL property characteristics bitfield).
+**Open questions:** Foundry ObjectType cross-walk targets, Wikidata QID mappings, audit format choice (JSON Lines / CloudEvents / OTel), DEK rotation cadence, escalation UX, HPO/MONDO multi-member confirmation, slot 0xFF schema-only convention.
+
+**Correction (2026-05-13):** §13 refinements added (same session). (a) Enforcement composes onto shipped `lance-graph-callcenter::policy::PolicyRewriter` chain + `PolicyKind` taxonomy (RowFilter/ColumnMask/RowEncryption/DifferentialPrivacy/Audit) rather than introducing parallel path — ~30% Tier A LOC reduction. (b) Cross-tenant federation upgraded to A+B+C all accepted; Option C (`EncryptedViewAggregate`) viable now via LanceDB transparent encrypted views, not 2027+ R&D. (c) Audit chain integrity built-in via `MerkleRoot::from_fingerprint` + `ClamPath` from `graph/spo/merkle.rs` (the merkle/DN-path mixing already shipped). (d) Hard-lock requirement formalized: Healthcare ↔ OSINT (and 3 other pairs) get 3 layers of defense — predicate + per-super-domain merkle salt + super-domain-scoped HKDF key derivation. (e) `researcher` role hardened to anonymized-projection-only with k-anonymity floor + DP noise injection on aggregates. New deliverables D-SDR-13..17 added. Open questions on audit format + cross-tenant federation RESOLVED; new open questions on hard-lock partner matrix + per-super-domain DP epsilon + merkle salt rotation cadence.
+
+**Correction (2026-05-13, fourth commit):** §19 build invariants + SIMD strategy added. Pins: rust 1.94.1, lance =4.0.0, lancedb 0.27.2 (per PR #275). All vectorized ops across D-SDR-1..39 use `ndarray::simd` from the workspace's vendored ndarray fork — single SIMD path, single test surface, single cross-platform behavior contract. Hot-path ops mapped: OwlIdentity bitmask scans, batch MerkleRoot computation, BitSet256 bitwise ops, per-family codebook PQ centroid distance, canonicalization rule application, DataFusion predicate vector composition, ArrowBatchDriftSignal MerkleRoot-of-batch. Tier A LOC drops ~15-25% (scalar fallback paths collapse to ndarray::simd one-liners). Mandatory-ndarray-as-dep promotion (retire `ndarray-hpc` feature flag) is a separate concurrent workstream, NOT in this spec's scope but assumed baseline; Tier A may temporarily ship behind `#[cfg(feature = "ndarray-hpc")]` until the promotion lands.
+
+**Correction (2026-05-13, third commit):** §18 empirical reality check added after pygithub REST inspection of `AdaWorldAPI/MedCareV2` + `AdaWorldAPI/MedCare-rs@claude/csharp-handoff-docs-L3DF0`. Major findings: (a) The §15-§17 drift bridge concept is already designed and partially scaffolded as `MedCareV2/MedCare_2.0/LanceProbe/` (M1 complete; M2-M6 pending Rust-side endpoints). 8 LanceProbe components (ParityClient/ParityWitness/DriftSink/etc.) map nearly 1:1 to the spec's DTOs. (b) MedCareV2 is overlay-only (copy of MedCare + LanceProbe additions) — cannot be reshaped freely as I assumed; "do NOT refactor" is the explicit constraint. (c) CRITICAL crypto correction: the "3DES" in MedCare's `Crypt.cs:438-451` uses 128-bit truncated key + zero IV + ECB-equivalent + non-standard MD5+RC2 KDF + 62-entry hardcoded password array — cryptographically equivalent to single DES (broken). The migration is NOT 3DES→AES-GCM rewrap; it's Argon2-backfill-on-login per existing `MedCare-rs/docs/AUTH_LEGACY_TRIPLEDES_MIGRATION.md` plan. (d) Only the `u_pwd` column on `praxis_mitarbeiter` uses the 3DES path; rest of the schema is plaintext. D-SDR-27 scope reduces from "decrypt-rewrap pipeline" to "carry ciphertext forward, Argon2-backfill on first login." (e) §15.2 abstract 12-rule determinism table replaced by 6 concrete canonicalization rules from `CSHARP_HANDOFF_PROMPT.md` lines 93-104 (date / decimal / bool / soft-delete / pwd / timestamp). (f) §17.3 Arrow Flight SQL convergence is aspirational end-state; immediate path is HTTP+JSON over JWT (what LanceProbe already targets); Flight SQL is Phase 5+ migration. (g) New deliverables D-SDR-35..39 for medcare-rs side: parity ingest endpoint, dashboard, DTO contracts doc, TripleDES fallback feature flag, telemetry endpoint. M5 is blocked until these land. Resolved 7 prior open questions (audit format, federation, DEK rotation, hard-lock matrix scope, DP epsilon, MedCareV2 reshape, 3DES inventory). 3 new open questions: other columns calling EncryptMessage in MySQL_Connect.cs, DTO contracts for 40+ planned routes, AUTH_LEGACY_TRIPLEDES_MIGRATION.md DRAFT-to-Active blockers.
+
+**Correction (2026-05-13, second commit):** §14-§17 refinements added (same session). (§14) Meta-bridge extracted from shipped medcare_bridge.rs + sharepoint_bridge.rs harvest, not designed clean-room. New bridges hubspot_bridge.rs + hiro_bridge.rs added as templates; woa_bridge.rs retrofit. Tier F (D-SDR-18..20, 23) + Tier G (D-SDR-21..22) deliverables. (§15) Drift detection initially framed as production parallelbetrieb infrastructure with 12 cross-language determinism rules — substantially refined by §16+§17. (§16) Pre-prod posture corrected per user clarification: nothing in production yet, single 3DES cipher (not 3-cipher chain), one-shot import tool not persistent infrastructure. Zone 3 boundary placement collapses determinism rules from 12 to ~3 (decimal + timestamp + FP aggregate). MerkleRoot-cleartext-beside-ciphertext insight: drift bridge compares without ever decrypting in steady-state production, so encryption uses random nonces (no need for AES-GCM-SIV). MedCare MySQL Struktur reality check (104 tables, all VARCHAR/TEXT/DATETIME, app-layer 3DES not at-rest, schema is purely clinical with billing/tickets in separate WoA/Hiro databases). New deliverables D-SDR-27..30. (§17) Convergence on LanceDB+DataFusion SQL as unified persistence; both Rust (in-process) and C# (Arrow Flight SQL gRPC) clients hit the same DataFusion logical plan layer. Custom Protobuf IDL (D-SDR-20) SUPERSEDED by Arrow Flight SQL — Substrait extension types for OwlIdentity/MerkleRoot/SuperDomain. Drift bridge bounded to Phase 2-3 cutover window, then retires to CI gate. New deliverables D-SDR-31..34. Dropped scope: MySQLAdapterBridge (D-SDR-24), persistent production drift infra, multi-trustee key escrow, C-ABI FFI option, custom Protobuf IDL. §18 deferred pending MCP scope expansion to AdaWorldAPI/MedCare + AdaWorldAPI/MedCareV2 for 3DES column inventory + transcoded shape grep.
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 ## v1 — LF Integration Mapping (authored 2026-04-25)
 
 **Author:** main thread (Opus 4.7 1M), session 2026-04-25 (branch claude/scenario-world-facade)