Credibility pass: the accretion sanded smooth

Blind reviews over d2b40ec..HEAD (engine / web / server+deploy). Orphaned
doc comments rejoined their functions; the swap-meet tradables collapsed
from four pasted deriveds to one (killing the "the's treasure" label);
FEAR's aura and banner now share the engine's own dreadDistance; the
long-press peek got one home; rulebook.ts stopped wearing JSON quotes;
process-named tests and war-story comments now state the constraints they
pin; the protocol doc caught up to its handlers; verify-ledgers.sh can
actually count failures; the runbook learned about the determinism gate
and the nightly backups. No behavior changes — 255 tests and all 48
production ledgers replay identically.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

packages/web/src/Board.svelte

@@ -2,10 +2,11 @@
   import type { Component } from "svelte";
   import type { GameView, SightTrace } from "@wizwar/engine";
   import type { Side } from "@wizwar/engine";
+  import { dreadDistance } from "@wizwar/engine";
   import type { BoardFx } from "./fx";
   import { colorIndexOf as sharedColorIndex, wizardColor } from "./colors";
   import { CREATURE_ART, objectArt, TERRAIN_ART, tokenArt } from "./art";
-  import EdgeGlyph from "./EdgeGlyph.svelte";
+  import EdgeGlyph, { type LockState } from "./EdgeGlyph.svelte";
   import FirewallEdge from "./FirewallEdge.svelte";
   import IllusionShimmer from "./IllusionShimmer.svelte";
   import SightTraceOverlay from "./SightTraceOverlay.svelte";
@@ -182,22 +183,16 @@
 
   // FEAR's dread: three spaces in every direction, straight through walls
   // ("even if walls separate you"), never diagonally — and the maze wraps,
-  // so the diamond continues from the opposite rim. Same measure the
-  // engine's refusal takes.
+  // so the diamond continues from the opposite rim. The engine's own
+  // yardstick, so the aura and the refusal can never disagree.
   const fearCells = $derived.by(() => {
     const out = new Set<string>();
-    const W = view.board.width;
-    const H = view.board.height;
     for (const fp of view.players) {
       if (!fp.alive) continue;
       if (!view.sustained.some((e) => e.cardId === "fear" && e.targetId === fp.id)) continue;
-      for (let dx = -3; dx <= 3; dx++) {
-        for (let dy = -3 + Math.abs(dx); dy <= 3 - Math.abs(dx); dy++) {
-          const wx = ((fp.position.x + dx) % W + W) % W;
-          const wy = ((fp.position.y + dy) % H + H) % H;
-          const k = `${wx},${wy}`;
-          if (view.board.cells[k]) out.add(k);
-        }
+      for (const k of Object.keys(view.board.cells)) {
+        const [x, y] = k.split(",").map(Number) as [number, number];
+        if (dreadDistance(view.board, fp.position, { x, y }) <= 3) out.add(k);
       }
     }
     return out;
@@ -421,7 +416,7 @@
         : e.lock === "ajar" ? "unlocked until end of turn" : null}
       <EdgeGlyph x={e.x} y={e.y} kind={e.kind === "V" ? "V" : "H"}
         state={e.state === "door" ? "door" : "wall"}
-        lock={(e.lock ?? null) as "removed" | "jammed" | "held" | "ajar" | null}
+        lock={(e.lock ?? null) as LockState | null}
         title={lockTitle} damage={view.wallDamage[`${e.kind}:${e.x},${e.y}`] ?? 0}
         onpeek={onEdgePeek} />
     {/if}
@@ -656,7 +651,7 @@
       {/if}
     {/each}
   {/if}
-  <!-- FEAR's bubble: every square within three WALKED spaces (warps count) -->
+  <!-- FEAR's bubble: the three-space diamond, through walls, wrapping the rim -->
   {#each fearCells as key (key)}
     {@const bx = Number(key.split(",")[0])}
     {@const by = Number(key.split(",")[1])}