Add event/organisation location with Google Maps links

Events and the organisation profile now have an address, with a
"Directions" link and an embedded Google Maps view (no API key
required) shown on event pages, event cards, and the Contact page.
New events default their location to the org's configured address.

frontend/src/app/dashboard/supervisor/events/page.tsx

@@ -6,6 +6,7 @@ import { useAuth } from "@/hooks/useAuth";
 import { useRouter } from "next/navigation";
 import { apiFetch, resolveToApiOrigin } from "@/lib/api";
 import { useDismissingState } from "@/hooks/useDismissingState";
+import { useSiteSettings } from "@/contexts/SiteSettingsContext";
 import { Calendar } from "lucide-react";
 
 // ─── helpers ────────────────────────────────────────────────────────────────
@@ -756,13 +757,15 @@ interface EventDraft {
   registrationDeadline: string; goLiveAt: string; price: string; picture: string;
   redirectUrl: string; isActive: boolean; isHidden: boolean; requiresAuth: boolean;
   requiresRegistration: boolean; contactName: string; contactPhone: string; contactEmail: string;
+  location: string;
 }
 
-const blankDraft = (): EventDraft => ({
+const blankDraft = (location = ""): EventDraft => ({
   title: "", description: "", startDate: "", endDate: "",
   registrationDeadline: "", goLiveAt: "", price: "", picture: "",
   redirectUrl: "", isActive: true, isHidden: false, requiresAuth: true,
   requiresRegistration: true, contactName: "", contactPhone: "", contactEmail: "",
+  location,
 });
 
 const blankOptions = (): OptionDraft[] => [
@@ -781,12 +784,15 @@ interface EventModalProps {
 function EventModal({ mode, event: ev, onClose, onSuccess }: EventModalProps) {
   const { token, user } = useAuth();
   const isAdmin = user?.role === "admin";
+  const { settings } = useSiteSettings();
   const [step, setStep] = useState<StepIdx>(0);
   const [pricingSubstep, setPricingSubstep] = useState<PricingSubstep>(0);
   const [saving, setSaving] = useState(false);
   const [error, setError] = useState<string | null>(null);
 
   // ── event draft ──
+  // New events default their location to the organisation's address (settings.org_address);
+  // editing an existing event always reflects its own saved location instead.
   const [draft, setDraft] = useState<EventDraft>(() => ev ? {
     title: ev.title || "", description: ev.description || "",
     startDate: toLocalDT(ev.startDate), endDate: toLocalDT(ev.endDate),
@@ -795,7 +801,8 @@ function EventModal({ mode, event: ev, onClose, onSuccess }: EventModalProps) {
     isActive: ev.isActive !== false, isHidden: !!ev.isHidden, requiresAuth: ev.requiresAuth !== false,
     requiresRegistration: ev.requiresRegistration !== false,
     contactName: ev.contactName || "", contactPhone: ev.contactPhone || "", contactEmail: ev.contactEmail || "",
-  } : blankDraft());
+    location: ev.location || "",
+  } : blankDraft(settings.org_address || ""));
 
   // ── options (with per-variant tiers) ──
   const [options, setOptions] = useState<OptionDraft[]>(() => {
@@ -1065,6 +1072,7 @@ function EventModal({ mode, event: ev, onClose, onSuccess }: EventModalProps) {
         contactName: draft.contactName || undefined,
         contactPhone: draft.contactPhone || undefined,
         contactEmail: draft.contactEmail || undefined,
+        location: draft.location.trim(),
       };
 
       if (mode === "edit") {
@@ -1209,6 +1217,11 @@ function EventModal({ mode, event: ev, onClose, onSuccess }: EventModalProps) {
                 <DTInput label="Registration Deadline (optional)" value={draft.registrationDeadline} onChange={v => upd({ registrationDeadline: v })} />
                 <DTInput label="Go Live At (optional)" value={draft.goLiveAt} onChange={v => upd({ goLiveAt: v })} hint="Leave blank to show immediately" />
               </div>
+              <div>
+                <label className="block text-xs text-gray-600 mb-1">Location</label>
+                <input className="w-full border rounded px-3 py-2 text-sm" value={draft.location} onChange={e => upd({ location: e.target.value })} placeholder="e.g. 123 Church St, City" />
+                <p className="text-[10px] text-gray-400 mt-0.5">Defaults to your organisation&apos;s address — shown to attendees with a map link.</p>
+              </div>
               <div className="flex items-start gap-2 p-3 border rounded bg-gray-50">
                 <input
                   type="checkbox"