fix(schedule): parse ASR times with spaces around colons for ITL routing

Voice/wechat ASR often emits forms like "17 ：08", which bypassed timed_reminder
classification and fell through to agent_schedule + schedule-guard false failures.

Co-authored-by: Cursor <cursoragent@cursor.com>

schedule-intent.test.mjs

@@ -125,6 +125,25 @@ test('specific dated reminder still routes to schedule assistant', () => {
   assert.equal(shouldUseScheduleAssistant('明天下午三点提醒我开会'), true);
 });
 
+test('parses ASR reminder text with spaced fullwidth colon before minutes', () => {
+  const now = Date.UTC(2026, 7, 24, 9, 7, 0); // 2026-08-24 17:07 Asia/Shanghai
+  const intent = parseScheduleIntent('设置一个提醒，今天下午 17 ：08要开会', {
+    timezone: 'Asia/Shanghai',
+    now,
+  });
+  assert.equal(intent.action, 'create_timed_reminder');
+  assert.equal(intent.title, '要开会');
+  assert.equal(intent.hour, 17);
+  assert.equal(intent.minute, 8);
+  assert.equal(intent.remindLocal, '2026-08-24 17:08');
+});
+
+test('ASR spaced colon routes to ITL timed reminder not agent', () => {
+  const result = classifyUserIntent('设置一个提醒，今天下午 17 ：08要开会');
+  assert.equal(result.kind, 'timed_reminder');
+  assert.equal(result.layer, 'L1');
+});
+
 test('parses direct reminder setup phrase from wechat', () => {
   const now = Date.UTC(2026, 7, 24, 4, 0, 0); // 2026-08-24 12:00 Asia/Shanghai
   const intent = parseScheduleIntent('帮我设置提醒，下午 14：30 分开会，项目计划例会', {