fix(quotes): quote date (تاریخ پیشنهاد) defaults to current time, not midnight

Wizard Step 5 initializes the quote date with the client's current local
time instead of 00:00, and the Jalali datepicker's hour/minute controls
default to the current clock whenever no explicit time is configured
(clicking «امروز» already used the current time). Date-only consumers
are unaffected (times are stripped at the API layer).

frontend/src/pages/Wizard/WizardPage.tsx

@@ -73,8 +73,8 @@ export function WizardPage() {
   const [assignment, setAssignment] = useState<Record<string, string[]>>({});
 
   const [quoteDate, setQuoteDate] = useState<string | null>(() => {
-    const d = new Date();
-    return new Date(d.getFullYear(), d.getMonth(), d.getDate()).toISOString();
+    // تاریخ پیشنهاد: همین الان (ساعت و دقیقه‌ی فعلی) — نه نیمه‌شب
+    return new Date().toISOString();
   });
   const [expiryDate, setExpiryDate] = useState<string | null>(null);
   const [notes, setNotes] = useState("");