gov: #425 + #427 post-merge — LATEST_STATE rows + PR_ARC_INVENTORY entries

Post-merge board hygiene for two PRs merged in this wave:

- **#425** (mine, lance-graph deps cleanup + [patch.crates-io] ndarray
  declared intent; merge commit 1a3abfb). Locks in the lance 6.0.1
  block reasoning (lancedb 0.29.0 transitive ='6.0.0') and the
  ndarray patch's "declared but unused" effect.
- **#427** (bindspace→mailbox migration wave A1-A4; merge commit
  8429611). Authored by a peer session; per-deliverable AGENT_LOG
  entries were prepended at branch HEAD pre-merge, but the
  LATEST_STATE / PR_ARC tier of governance was left for follow-up —
  this commit fills it. Records the 7 ratified plan §10 findings +
  the 2 surviving OQs (OQ-MBX-8 persisted_row vs Lance native
  versioning; OQ-MBX-15′ container scoping).

Both via tee -a (the 8 bookkeeping files deny Edit/Write); dated
framing preserves the rule-#1 PREPEND convention.

No code touched. No new types proposed.

Outstanding: #426 (odoo blueprint Stage 1, +115K lines) also lacks a
LATEST_STATE/PR_ARC row; defer to the authoring session for the rich
sub-deliverable breakdown (D-ODOO-EXT-1..6 + EXT-3 + BP-1a/b) — a
peer session writing #426 governance would either summarize too
coarsely or duplicate the per-deliverable AGENT_LOG entries that
already exist on main.

https://claude.ai/code/session_01FMooFcE7hgRWWvknNr2N4i

Author: claude

.claude/board/LATEST_STATE.md

@@ -450,3 +450,25 @@ PR sequence: #360 → #361 → post-#360 substrate-sweep (this PR).
 | PR | Merged | Title | What it added |
 |---|---|---|---|
 | **#422** | 2026-05-28 | docs(handover): PR #418/#419 review + surreal/mailbox/Baton/SoA-as-BindSpace-surrogate plan map | Read-only synthesis handover. New `.claude/handovers/2026-05-28-1200-pr-418-419-surreal-mailbox-baton-plan-map.md` (~310 LOC, 7 sections): §1 PR #418 review (verdict *sound, merge-ready as a spec* + 3 substantive notes on the bare-columns-vs-hot-thought footprint distinction, `E-RUBICON-RACTOR` as honest post-hoc CONJECTURE, OQ-4 doctrinal gating); §2 the **SurrealDB role correction** (Zone-2 cold store → *view over leading LanceDB*, recorded in `E-RUBICON-RACTOR` + plan §2.7); §3 the plan corpus map (8 plans + 9 epiphanies + `PR-NDARRAY-MIRI-COMPLETE → D-CE64-MB-1-impl → D-MBX-1..6` dep chain + `TD-RESONANCEDTO-DUP-1`); §4 brief #419 review (unrelated to surreal/mailbox; the 14 `NEEDS-INPUT` blockers are the real gate for D-ODOO-SAV-4); §5 navigability meta-finding (the surreal POC docs lack a supersedure pointer); §6 action surface; §7 cross-refs. Board appends: `EPIPHANIES.md` ← `E-SURREAL-POC-UNANNOTATED-SUPERSEDURE` (FINDING / navigability); `AGENT_LOG.md` ← session row. **Zero code change**; 3 files; +310/-0. Branch `claude/lance-graph-ontology-review-Pyry3` → `main`. Merge commit `984512b` on top of `a29946b` (the doc commit, rebased onto post-#421 `main` to resolve the AGENT_LOG append-vs-append conflict by keeping both #421's AXIS-B row and this PR's session row in chronological order). |
+
+---
+
+## 2026-05-28 — Append: PR #425 shipped (deps comment cleanup + [patch.crates-io] ndarray declared intent)
+
+(Per APPEND-ONLY rule: this dated annotation augments the "Recently Shipped PRs" table above. Treat the row below as the new top-of-table entry.)
+
+### Recently Shipped PRs — new top row
+
+| PR | Merged | Title | What it added |
+|---|---|---|---|
+| **#425** | 2026-05-28 | deps(workspace): clean BLOCKED comments; record 6.0.0→6.0.1 block (lancedb 0.29.0 transitive) | Workspace `Cargo.toml` cleanup + finding. Replaces the stale `BLOCKED-(A)/(B)/(D)` comment block (predates #423's 4→6 / 0.27→0.29 / 52→53 / 57→58 bump) with a dated `RESOLVED(A)/(B)/(D)` record pointing to #423 + the live crate-level pins. Records the user-authorised follow-on patch `lance 6.0.0 → 6.0.1` as **CURRENTLY BLOCKED** by `lancedb 0.29.0`'s transitive `lance = "=6.0.0"` requirement (proof: `cargo check` → `versions that meet the requirements '=6.0.0' are: 6.0.0`; resolution paths: wait for lancedb 0.29.1+, drop strict-=, or `[patch.crates-io]` override). Adds `[patch.crates-io] ndarray = { git = "https://github.com/AdaWorldAPI/ndarray.git", branch = "master" }` per user directive — declared intent; cargo emits `warning: patch ndarray v0.17.2 was not used in the crate graph` because lance-index 6.0.0 pins `ndarray = "0.16.1"` (semver gap, fork at 0.17.2). `Cargo.lock` now contains a `[[patch.unused]]` entry that makes the gap visible at every build. Files `TD-NDARRAY-PATCH-0_16` in `TECH_DEBT.md`. Codex P2 (`59ef97e`) flagged the original false RESOLVED(D) claim; fix in `2e001a5`/`8f3913b`/`1444f78`. Merge commit `1a3abfb8`. |
+
+## 2026-05-28 — Append: PR #427 shipped (bindspace→mailbox migration wave A1-A4)
+
+(Per APPEND-ONLY rule: appended after PR #425's annotation above. Treat the row below as the new top-of-table entry.)
+
+### Recently Shipped PRs — new top row
+
+| PR | Merged | Title | What it added |
+|---|---|---|---|
+| **#427** | 2026-05-28 | feat(mailbox-soa): bindspace→mailbox migration wave A1-A4 (thoughtspace columns + transitional routing + WitnessTable + plan §10) | First implementation pulse of `bindspace-singleton-to-mailbox-soa-v1` (PR #418 plan). **A1** (`1df12eca`, +103): 4 thoughtspace columns on `MailboxSoA` (`edges`/`qualia`/`meta`/`entity_type`) + 8 row accessors + zero-init in `new()` + reset in `reset_row()`. **A2** (`61b641d5`, +42): transitional `mailboxes: HashMap` + `with_mailbox()` builder + `mailbox()` accessor on `ShaderDriver` — sibling-shape, additive, singleton untouched. **A3** (`ef848a34`, +187): new `WitnessTable` + `WitnessEntry{ mailbox_ref, spo_fact_ref }` primitive in `lance-graph-contract::witness_table` (zero-dep, 3 unit tests, `const fn new`, `get`/`set` bounds-checked). **A4** (`0f448730`, +36): plan §10 "2026-05-28 architectural refinements" appended — 7 ratified findings (SoA-Lance ≠ cascade; cascade is not an index space; 64k-256k mailbox envelope ~360 MB - 1.4 GB RAM-resident; W-slot = per-cohort witness table not corpus pointer; cascade granularities = CPU/cache boundaries 64/256/4096/16384; `simd_soa.rs` introspects per-SoA shape; SoA invariant spawn → commit, two egress modes external/internal) + 2 surviving OQs (OQ-MBX-8 `persisted_row` vs Lance native versioning; OQ-MBX-15′ container scoping granularity). Codex P1 follow-on `f541b280`: widen `WitnessEntry.mailbox_ref` u16 → u32 + correct `Option<u64>` size doc. **457 contract+driver tests passing**, zero new behavioural code outside the columns/builder/primitive. Singleton `Arc<BindSpace>` NOT removed (sibling pattern); cutover in a downstream slice (D-MBX-3/4). Merge commit `84296118`. Author session — this governance row is the post-merge close-out; per-deliverable AGENT_LOG entries D-MBX-A1..A4 already prepended at branch HEAD pre-merge. |

.claude/board/PR_ARC_INVENTORY.md

@@ -2010,3 +2010,69 @@ Removes `crate-ci/typos` spell-check job from `style.yml`; `cargo fmt --check` r
 - `AGENT_LOG.md` session row (appended).
 
 **Confidence (2026-05-28):** working — docs-only; merge clean (rebased onto post-#421 main; `EPIPHANIES.md` auto-merged; `AGENT_LOG.md` conflict resolved by keeping both entries chronologically; force-with-lease push). Merge commit `984512b`. No CI gates relevant.
+
+---
+
+## PR #425 — deps(workspace): clean BLOCKED comments; record 6.0.0→6.0.1 block (lancedb 0.29.0 transitive) (MERGED 2026-05-28 → main)
+
+(Per APPEND-ONLY mechanic: appended at file-end; the rule-#1 PREPEND convention is preserved by the dated framing — treat as new top-of-arc entry.)
+
+**Status:** MERGED. Branch `claude/lance-graph-ontology-review-Pyry3` → `main`. 4 commits (`59ef97e` initial → `2e001a5` codex P2 correction → `8f3913b` patch added → `1444f78` Cargo.lock regen) + merge commit `1a3abfb8`. Cargo.toml + Cargo.lock + TECH_DEBT.md only; no `.rs` / `build.rs` / `data/` touched.
+
+**Added:**
+- `Cargo.toml` deps-comment block rewrite: BLOCKED-(A)/(B)/(D) → dated RESOLVED record pointing at #423 + live crate-level pins. Records the user-authorised follow-on patch `lance 6.0.0 → 6.0.1` as CURRENTLY BLOCKED with named resolution paths.
+- `[patch.crates-io] ndarray = { git = "https://github.com/AdaWorldAPI/ndarray.git", branch = "master" }` (declared intent).
+- `Cargo.lock` regenerated — now includes `[[patch.unused]] ndarray 0.17.2 (git+...?branch=master#0129b5c8)` entry surfacing the semver gap at every build.
+- `TECH_DEBT.md` ← `TD-NDARRAY-PATCH-0_16` tracking the lance-index `=0.16.1` vs fork `0.17.2` gap with three resolution paths.
+
+**Locked:**
+- **The `lance 6.0.1` patch is blocked at the dep-graph level**, not the doctrinal level. `lancedb 0.29.0` (latest 0.29.x on crates.io) transitively pins `lance = "=6.0.0"`. Re-bump when lancedb 0.29.1+ ships.
+- **`[patch.crates-io] ndarray` is declared intent, not effective.** The fork at `0.17.2` cannot semver-satisfy lance-index `0.16.1`. Cargo emits "patch unused" warning at every build — the gap is now actively visible rather than silently misrepresented.
+- **No crate-level pin changed in this PR** — pins stayed at #423's `=6.0.0` / `=0.29.0` / `"53"` / `"58"` state.
+
+**Deferred:**
+- `lance 6.0.1` re-bump (gated on lancedb 0.29.1+ or doctrine change).
+- A `0.16.x`-versioned branch on AdaWorldAPI/ndarray with the fork patches forward-ported (the cleanest way to actually wire the transitive through the fork).
+
+**Docs:**
+- `Cargo.toml` deps-comment block (RESOLVED(A)/(B)/(D) + STILL-OPEN(C) + 6.0.1-block-record + `[patch.crates-io]` doc).
+- `TECH_DEBT.md` `TD-NDARRAY-PATCH-0_16` (full reasoning + resolution paths).
+
+**Confidence (2026-05-28):** working — `cargo check -p lance-graph-ontology` exits 0 in 37s with only pre-existing oxrdf deprecation warnings + the (intended) "patch ndarray unused" warning. Codex P2 on the original commit (`59ef97e`) flagged the false RESOLVED(D) claim; addressed by the three follow-on commits before merge.
+
+---
+
+## PR #427 — feat(mailbox-soa): bindspace→mailbox migration wave A1-A4 (MERGED 2026-05-28 → main)
+
+(Per APPEND-ONLY mechanic: appended at file-end; the rule-#1 PREPEND convention is preserved by the dated framing — treat as new top-of-arc entry. Governance written by a peer session, not the authoring session — fills the LATEST_STATE/PR_ARC gap left by the merge wave.)
+
+**Status:** MERGED. Branch `claude/lance-surrealdb-analysis-LXmug` → `main`. 5 slice commits (A1 `1df12eca` + A2 `61b641d5` + A3 `ef848a34` + A4 `0f448730` + review pass `68328878`) + codex P1 follow-on `f541b280` (widen `mailbox_ref` u16 → u32) + merge commit `84296118`. **457 contract+driver tests green** at merge time.
+
+**Added (the four slices, plus codex fix):**
+- **A1 — thoughtspace columns on `MailboxSoA`**: `edges: [CausalEdge64; N]` + `qualia: [QualiaI4_16D; N]` + `meta: [MetaWord; N]` + `entity_type: [u16; N]`; 8 row accessors (`edge`/`set_edge`/`qualia`/`set_qualia`/`meta`/`set_meta`/`entity_type`/`set_entity_type`); zero-init in `new()`; reset in `reset_row()`. **The migrated thoughtspace columns are now available on each mailbox** — the surface that the singleton dissolution downstream will read/write.
+- **A2 — transitional `ShaderDriver.mailboxes: HashMap<MailboxId, MailboxSoA<N>>`**: sibling-shape (the `Arc<BindSpace>` singleton stays); `with_mailbox()` builder + `mailbox()` read accessor. Additive only.
+- **A3 — `lance-graph-contract::witness_table`**: new `WitnessTable<N>` + `WitnessEntry { mailbox_ref: u32, spo_fact_ref: Option<u64> }` primitive; `const fn new()`; bounds-checked `get`/`set`; 3 unit tests; zero-dep. (Codex P1 `f541b280` widened `mailbox_ref` u16 → u32 and corrected the `Option<u64>` size doc.)
+- **A4 — plan §10 architectural refinements** appended to `.claude/plans/bindspace-singleton-to-mailbox-soa-v1.md`: 7 ratified findings + 2 surviving OQs (see Locked).
+
+**Locked (architectural rulings ratified in plan §10):**
+1. **SoA Lance container ≠ cascade.** Cascade is resolution-laddered superposition; the SoA Lance container is the materialised data substrate. 1 cascade : N SoA containers via top-k emission.
+2. **Cascade is NOT an index space.** `64² / 256² / 4096² / 16384²` are per-axis granularities (causal / palette / COCA codebook / outcome), superposed and streamed like x265 cascaded prediction levels.
+3. **64k-256k mailbox envelope** (~360 MB - 1.4 GB total). Whole population RAM-resident; no tier split; no eviction policy needed.
+4. **W-slot resolves into a per-cohort witness table** of `(mailbox_ref, spo_fact_ref)` entries — NOT a witness-corpus pointer. AriGraph today is a transcode; the chaining engine is the target shape.
+5. **Cascade granularities are CPU/cache boundaries** — 64 = AVX-512 / cache line; 256 = AMX tile; 4096 = page; 16384 = L1d.
+6. **`ndarray::simd_soa.rs` is the SoA dispatch framework** — introspects per-SoA shape; migration is positional, not structural.
+7. **SoA invariant spawn → commit.** Two egress modes: external (REST / sea-orm SQL, backpressure expected) or internal (SurrealDB → LanceDB | RocksDB, no backpressure). No marshalling at any boundary.
+
+**Deferred (surviving OQs and scope discipline):**
+- **OQ-MBX-8** — `persisted_row` stub vs Lance native versioning (load-bearing; evidence at `REFACTOR_NOTES.md:129` + `driver.rs:458`).
+- **OQ-MBX-15′** — container scoping: per-cognitive-cycle, per-shader-dispatch, or per-mailbox-cohort?
+- **Singleton `Arc<BindSpace>` dissolution** — A2 is a *sibling* surface only; the cutover ships in a later slice (D-MBX-3/4 per the plan).
+- **`WitnessTable` wiring into `CausalEdge64` emission paths** — A3 declares the primitive only; consumer wiring is downstream.
+- **Consumer crate touches** — planner / ontology / surreal_container untouched in this wave.
+
+**Docs:**
+- `.claude/plans/bindspace-singleton-to-mailbox-soa-v1.md` §10 appended (7 findings + 2 OQs).
+- AGENT_LOG entries D-MBX-A1..A4 prepended at branch HEAD pre-merge.
+- LATEST_STATE Current Contract Inventory annotated with `WitnessTable` + `MailboxSoA` additions.
+
+**Confidence (2026-05-28):** working — `cargo check -p cognitive-shader-driver -p lance-graph-contract` clean (only pre-existing ontology deprecation warnings); `cargo test -p cognitive-shader-driver -p lance-graph-contract --lib` 457 passed / 0 failed at merge time. Codex P1 (`f541b280`) addressed before merge. No consumer surfaces touched.