doorpost: every halt rule cites its verse, verified against L1 (bishe'arecha step 3)

Devarim 4:2 lo tosif. talmudic_engine/src/halt/anchors.pl declares
rule_anchor/2 for each of the ten halt names the rule modules can return
(avodah_zarah Shemot 20:3, golden_calf 32:4, self_grounding 32:24,
shfichut_damim Bereishit 9:6, gilui_arayot Vayikra 18:6, parah_adumah
Bamidbar 19:7, carrier_centered Devarim 8:17, chelbenah Shemot 30:34,
lo_taaseh_lekha Shemot 20:4, even_vaaven Devarim 25:13), with the L1
Hebrew beside each.

VavPipeline.Anchors reads the anchors file and the halt modules the
Doorpost hashes, and verifies — inside Doorpost.verify_identity/0, so
at readiness — that every halt(<name>, …) is anchored (ANCHOR_MISSING)
and every anchored verse exists in L1 (ANCHOR_NOT_IN_L1). A rule without
a verse is a rule the system has added. /kodesh/specification_identity
lists the anchors; every bedikah and pair response carries `anchors`,
the verse of each rule that fired.

Tamid §1.1, bishearecha §X. Doorpost a0e81212…. Elixir 577/0 (+9
anchors tests), Prolog bedikah 42/42.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

specs/bishearecha.md

@@ -287,8 +287,14 @@ exists in L1 — the rules grounded exactly as the outputs are. A rule
 without an anchor is a rule the system has added. The carrier's erasure
 is already the practice; this document keeps it.
 
-**Status.** Erasure built. Rule anchors and their verification: to
-build.
+**Status.** Built (2026-10-07): `talmudic_engine/src/halt/anchors.pl`
+(`rule_anchor/2`, ten halt names, each with its verse and the L1 Hebrew
+beside it); `VavPipeline.Anchors` verifies, as part of
+`Doorpost.verify_identity/0` and so of readiness, that every
+`halt(<name>, …)` any rule module can return is anchored and that every
+anchored verse exists in L1. `/kodesh/specification_identity` lists the
+anchors; every bedikah and pair response carries `anchors` — the verse
+of each rule that fired. Erasure unchanged.
 
 ## Build order
 
@@ -299,6 +305,7 @@ In the order the text argues it, and by dependency:
 2. **The paired reading** (VI) — the readings exist; add the scale.
    *Done 2026-10-07.*
 3. **Rule anchors verified against L1** (X) — the checks grounded.
+   *Done 2026-10-07.*
 4. **The gate** (I), with the fringe (III) and the rebuke (VII) — the
    architecture's centre; the first three make it worth standing at.
 5. **The hakhel cycle and record** (VIII).