feedback5 R5: split the in-match UI logic into modules

public/js/ui/gameLogic.js becomes a re-export barrel. The bodies move verbatim into public/js/ui/gameLogic/*.js (shared, phases, camera, watch, bonds, shop, placement, draft, enemies, format, shortcuts, settings, result, loadout, panel). The barrel re-exports the same 96 names in the same order. isObj and int gain export on shared.js so sibling modules can import them; they stay off the barrel. No importer changes.

public/js/ui/gameLogic/settings.js

@@ -0,0 +1,26 @@
+// ui/gameLogic/settings.js — settings defaults and sanitising. Re-exported from ../gameLogic.js.
+
+import { clamp, isObj } from './shared.js';
+
+
+// ---- settings ------------------------------------------------------------------------------------------------------
+
+export const DEFAULT_SETTINGS = Object.freeze({ bgm: 0.6, sfx: 0.8, muted: false, damageNumbers: true, quality: 'high' });
+const QUALITIES = ['high', 'medium', 'low'];
+
+/**
+ * Sanitize persisted settings.
+ * @param {any} raw
+ * @returns {{ bgm: number, sfx: number, muted: boolean, damageNumbers: boolean, quality: 'high'|'medium'|'low' }}
+ */
+export function sanitizeSettings(raw) {
+  const r = isObj(raw) ? raw : {};
+  const vol = (v, d) => (Number.isFinite(v) ? clamp(Math.round(v * 100) / 100, 0, 1) : d);
+  return {
+    bgm: vol(r.bgm, DEFAULT_SETTINGS.bgm),
+    sfx: vol(r.sfx, DEFAULT_SETTINGS.sfx),
+    muted: typeof r.muted === 'boolean' ? r.muted : DEFAULT_SETTINGS.muted,
+    damageNumbers: typeof r.damageNumbers === 'boolean' ? r.damageNumbers : DEFAULT_SETTINGS.damageNumbers,
+    quality: QUALITIES.includes(r.quality) ? r.quality : DEFAULT_SETTINGS.quality,
+  };
+}