board: post-merge hygiene for PR #627 (PR_ARC entry + LATEST_STATE row)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: claude

.claude/board/LATEST_STATE.md

@@ -100,6 +100,7 @@ Membrane consumers can now pull BOTH halves of a render `classid` BBB-safely fro
 
 | PR | Merged | Title | What it added |
 |---|---|---|---|
+| **#627** | 2026-07-02 | classid canon:custom flip TRIGGERED (doc-only) | Operator ruling recorded + `classid-canon-custom-flip-v1.md` ACTIVE: canon `domain:appid` → hi u16, custom (`0x1000` temporary marker) → lo; `0x0701_1000` / `0x07:01::1000`; OSINT low byte = appid space (zero vocab rows, OGAR #146 67→65 fuse balanced); q2 gate WAIVED; ISSUES ×4 resolved/ruled; codex P2 guards locked (class_id via `split_classid(id).canon` never `as u16`; legacy keys demote not retire). Merge `c8e1ec4`. |
 | **#626** | 2026-07-02 | V3 convergence wiring: tenant-carve certification, RungElevator, P6 wave probe, seam-list plan | "Wire, don't invent": `RungLevel::{from_u8,elevate,de_elevate,pearl_level,causal_mask_bits}` + `RungElevator` (sustained-BLOCK policy over P2/P3-certified masks; converged with `escalation::rung_delta` via `apply_delta` — one ladder, two signal sources) wired through the driver (persistent elevator, `ctx.rung=1` proxy retired, grpc rung saturates-never-wraps per codex P2); BOTH V3 tenant carves matrix-certified (Cognitive + Compressed); P6 probe (wave dist == certified palette read, markov_soa verified); `[patch.crates-io] ndarray` → local sibling path (fetch deadlock gone; first in-sandbox core build, 925/925). Plan `v3-convergence-wiring-v1.md`; worker Rule 7. Branch `claude/v3-substrate-migration-review-o0yoxv`, merge `5aaee33`. |
 | **#542** | 2026-06-18 | E-OGAR-IS-FOUNDRY capstone + 5+3 council + the key→row baton | Foundry/Gotham = "write the OGAR class schema + inheritance"; everything else is generic machinery over it (ontology=`classid→ClassView`+inheritance, AR=DO/THINK, pipelines=`compute_dag`, apps=Jinja-over-classes, query=Cypher⇄SurrealQL one IR). Added `MailboxSoaView::row_for_local_key -> Option<usize>` (default `None`, deferred-binding — the key→row baton for a future `Backend::MailboxSoa` router). Epiphanies `E-OGAR-IS-FOUNDRY`/`E-CYPHER-IS-THE-KANBAN-AST`/`E-GUID-IS-THE-GRAPH`; plan `cypher-kanban-ast-unification-v1`. Council corrections: `from_guid_prefix` is on `NiblePath` not `NodeGuid`; "odoo proof" = CONJECTURE; `ogar-adapter-surrealql` not a crate. Branch `claude/q2-substrate-grounding`, merge `faca377f`. |
 | **#540** | 2026-06-18 | `lite-unified` additive default-OFF coexistence feature gate | **+35/-5, 2 files.** `lite-unified = []` in `crates/lance-graph/Cargo.toml` (empty until SurrealQL-on-lance lowering lands). **datafusion stays DEFAULT — NOT deprecated, NOT made optional.** Process, not switch; promoted per query-shape once OQ-LU-2a is green. Zero behavior change at default features. Branch `claude/lite-unified-gate`, merge `ef7e97ef`. |

.claude/board/PR_ARC_INVENTORY.md

@@ -35,6 +35,22 @@
 
 ---
 
+## #627 lance-graph: classid canon:custom flip TRIGGERED — migration plan v1 + operator ruling record (doc-only)
+
+**Status:** MERGED 2026-07-02 (merge commit `c8e1ec4`), branch `claude/v3-substrate-migration-review-o0yoxv`. Doc-only: records the operator ruling arc and activates the §2.3 migration.
+
+**Added:** `.claude/plans/classid-canon-custom-flip-v1.md` (the TRIGGERED atomic Canon:Custom half-order flip — canon `domain:appid` → HIGH u16, custom/marker → LOW; stored `0x0701_1000`, human-readable `0x07:01::1000`; ONE flippable `compose_classid/split_classid/CLASSID_CANON_HIGH`; mint-forward with an I-LEGACY version boundary; phases P0 route-through → P1 flip+coexist → P2 OGAR#95 app-prefix reconciliation [operator checkpoint] → P3 q2 re-mints → P4 `0x1000` retirement [operator checkpoint]). Board: EPIPHANIES `E-CLASSID-CANON-HIGH-TRIGGERED`, INTEGRATION_PLANS prepend, STATUS_BOARD `D-CCF-0..4`, ISSUES status flips ×4.
+
+**Locked:** OSINT low byte = APPID space domain-wise (`00` = domain, `01` = q2 — zero vocabulary rows, executed OGAR PR #146, codebook 67→65, COUNT_FUSE balanced with zero mirror changes); `0x1000` = temporary reminder, not a format bit; the SoA `class_id` discriminator derives via `split_classid(id).canon` NEVER `as u16` (codex P2 — post-flip `as u16` collapses every class to `0x1000`); legacy registry keys DEMOTE to read-only aliases, retirement only on corpus proof (codex P2 — mint-forward means persisted old-form rows resolve forever until re-baked).
+
+**Deferred:** P2 + P4 operator checkpoints; implementation phases (D-CCF-0 starts immediately post-merge).
+
+**Docs/board:** as Added; OGAR side in `DISCOVERY-MAP.md` `D-OSINT-APPID-NOT-CONCEPT` (OGAR #146, merged `a0c7936`).
+
+**Confidence (2026-07-02):** HIGH for the record (verbatim operator anchors in plan §0); the flip itself is unimplemented by design (doc-first). Both codex P2 findings amended pre-merge.
+
+**Cross-ref:** OGAR #146; #626 (V3 set completion that armed the trigger); `soa-value-tenant-migration-v2.md` §2.3; `E-CLASSID-SPLIT-ORDER-IS-A-FLIP`.
+
 ## #626 lance-graph: V3 convergence wiring — tenant-carve certification, RungElevator, P6 wave probe, seam-list plan
 
 **Status:** MERGED 2026-07-02 (merge commit `5aaee33`), branch `claude/v3-substrate-migration-review-o0yoxv`. The "wire, don't invent" arc: every deliverable a probe or a wiring of EXISTING types (`E-V3-TENANTS-ALREADY-EXIST-WIRE-DONT-INVENT`); operator all-in, Sonnet-grindwork/Fable-decisions model split.