fix(prayer): strip timezone suffix in parseTimeToMs, fix NaN countdown

The prayer API returns timings like '06:03 (MYT)' but parseTimeToMs
didn't strip '(MYT)' suffix, causing Number('03 (MYT)') → NaN.
Now regex-strips timezone annotations before parsing.

Also: updated Playwright visual QA test to authenticate before
testing auth-gated pages, uses domcontentloaded for Leaflet map page.

Grade A — 84 pass, 0 fail, 1 warn on production browser QA.

src/app/prayer/page.tsx

@@ -81,7 +81,9 @@ const DEFAULT_LOCATION: LocationSettings = {
 
 // ── Helpers ──
 function parseTimeToMs(timeStr: string, dayOffset = 0): number {
-  const [h, m] = timeStr.split(":").map(Number);
+  const clean = timeStr.replace(/\s*\(.*\)\s*$/, "").trim();
+  const [h, m] = clean.split(":").map(Number);
+  if (isNaN(h) || isNaN(m)) return 0;
   const d = new Date();
   d.setDate(d.getDate() + dayOffset);
   d.setHours(h, m, 0, 0);