fix+test v1.13.2: audit round 3

- 12-test buildDevices suite on a fake hass (curation, markers, groups, dedup,
  icon rules, lock override, device_class fallback, primary/LQI/temp)
- t() substitutes all placeholder occurrences (pure subst() + regression test)
- _saveConfigNow resyncs config on rev conflict before rethrowing
- pointercancel clears the long-press timer (phantom info card on touch)
- repairs.py: plan-file check re-runs after every config save
- test build compiles devices.ts/types.ts; fix-test-build.mjs adds .js to ESM imports

test/logic.test.mjs

@@ -2,7 +2,7 @@ import test from 'node:test';
 import assert from 'node:assert/strict';
 import {
   lqiColor, snapToGrid, segKey, samePoint, pointInPolygon, markerIdForBinding, averageLqi,
-  fitView, declump, safeUrl, resolveTapAction, floorsOf,
+  fitView, declump, safeUrl, resolveTapAction, floorsOf, subst,
 } from '../test-build/logic.js';
 import {
   iconFor, compileIconRules, isValidPattern, iconFromDeviceClasses,
@@ -206,3 +206,9 @@ test('floorsOf: sorts by level, tolerates missing registry and odd entries', ()
   const res = floorsOf(hass);
   assert.deepEqual(res.map((f) => f.id), ['ground', 'attic', 'x']);
 });
+
+test('subst: replaces every occurrence of a placeholder, ignores unknown', () => {
+  assert.equal(subst('{n} of {n} ({x})', { n: 2, x: 'y' }), '2 of 2 (y)');
+  assert.equal(subst('no vars'), 'no vars');
+  assert.equal(subst('keep {unknown}', { n: 1 }), 'keep {unknown}');
+});