docs(structure): restore Gate B wording and harden pin

Drop the Gate B parenthetical that was not in the frozen AGENTS table.
Require Phase 0 labels in both compose and DEPLOYMENT, and pin the full
client-authoritative math lock phrase.

.audit/docs-structure-pass.tsv

@@ -4,3 +4,4 @@ ts	phase	decision	why	evidence	result
 2026-09-09T19:45:25Z	unit	AGENTS ownership complete; Gates table removed; UX-DESIGN demoted; IMPL-PLAN owns gate meanings	subtract calendar restatement and close ownership gap	AGENTS.md,docs/UX-DESIGN.md,docs/IMPL-PLAN.md	check-structure PASSED
 2026-09-09T19:45:25Z	unit	TEST-SPEC and deploy docs label missing tree as Phase 0 targets	stop agents inventing harness paths that are not on main	docs/TEST-SPEC.md,docs/DEPLOYMENT.md,deploy/docker-compose.yml,README.md	check-structure PASSED
 2026-09-09T19:45:25Z	verify	ran docs/checks/check-structure.sh after all edits	prove done predicate on real artifact	docs/checks/check-structure.sh exit 0	VERIFIED
+2026-09-09T19:47:17Z	attention-fix	restored Gate B meaning to original AGENTS wording; hardened check-structure for both deploy files and fuller math lock phrase	Attention review flagged Gate B parenthetical as lock drift and weak deploy grep	docs/IMPL-PLAN.md,docs/checks/check-structure.sh	check-structure PASSED

docs/IMPL-PLAN.md

@@ -25,7 +25,7 @@ This file is the only place that defines Gate meanings and how they map onto pha
 | Label | Human name | What it means |
 |---|---|---|
 | Gate A | Docs freeze | Product locks written into the repo |
-| Gate B | Run-host setup | Inventory the real host, deploy skeleton (`frontend/` + `backend/` + compose targets) |
+| Gate B | Run-host setup | Inventory the real host, deploy skeleton |
 | Gate C | First draft listing | One Woo draft listing with inference OFF |
 
 **Phase 0 = Gates A+B.** **Gate C = early Phase 1** claimable publish slice. Call 1/2 after Gate C is green, still inside POC. Phase 2 is a deferred stub; do not build it next after Phase 1.

docs/checks/check-structure.sh

@@ -64,10 +64,17 @@ else
   bad "TEST-SPEC §2 must say frontend/e2e and backend/tests are targets until code exists"
 fi
 
-if grep -Eqi 'Phase 0 deliverable|not (yet )?in (the )?tree|aspirational|scaffold target' deploy/docker-compose.yml docs/DEPLOYMENT.md; then
+for f in deploy/docker-compose.yml docs/DEPLOYMENT.md; do
-  ok "deploy docs label missing tree paths as Phase 0 targets"
+  if grep -Eqi 'Phase 0 deliverable|not (yet )?in (the )?tree|aspirational|scaffold target' "$f"; then
+    ok "$f labels Phase 0 scaffold targets"
   else
-  bad "compose or DEPLOYMENT must label frontend/backend Dockerfiles as Phase 0 targets"
+    bad "$f must label frontend/backend paths as Phase 0 targets"
+  fi
+done
+if grep -Eqi 'Phase 0|check-structure|IMPL-PLAN' README.md; then
+  ok "README points at Phase 0 / structure pin / IMPL-PLAN"
+else
+  bad "README must point at Phase 0 build path or check-structure"
 fi
 
 while IFS= read -r phrase; do
@@ -82,7 +89,7 @@ bdft = sqft × thickness_in
 SLAB-UAT-*
 WOO_BASE_URL
 https://
-authoritative for math
+is authoritative for math; server **stores** client-sent numbers
 Confidence 0.7
 draft → calibrated → ready → publishing → published
 LOCKS