frontend: safe fixes from the #109 punch-list

- CallSpineEntry.tsx: drop the dead `hasAudio` prop + the early `return null`
  that sat between hooks in InlinePlayer (React #310 risk). Parent already
  gates the mount on audio presence.
- NodeCard.tsx + nodes/page.tsx: pending-node card no longer double-fires.
  NodeCard gains `linkToDetail` (default true); the pending branch passes
  false so the wrapping onClick (open config modal) isn't swallowed by the
  inner <Link> navigation. List view unchanged.
- trips/page.tsx: TripCard badge now buckets on end_date >= today, matching
  the list's own upcoming/past split — an in-progress trip no longer shows a
  "Past" badge under "Upcoming".
- trips/page.tsx, NodeConfigModal.tsx, nodes/[id]/page.tsx: tall modals get
  `p-4` on the overlay + `max-h-[90vh] overflow-y-auto` on the panel so they
  don't clip on short viewports (incidents' CreateModal pattern).
- lib/types.ts: IncidentRecord.units / vehicles are optional now, matching
  Firestore (older docs omit them); incidents/[id] gains a `?? []` guard.

Untypechecked (no node/npm locally). next build in deploy.yml gates it.
Full list of remaining items in server-26 #109.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

drb-frontend/app/incidents/[id]/page.tsx

@@ -100,6 +100,7 @@ export default function IncidentDetailPage() {
   const displayTags = incident.tags.filter((t) => t !== "auto-generated");
   const unitsActive = incident.units_active ?? incident.units ?? [];
   const unitsCleared = incident.units_cleared ?? [];
+  const vehicles = incident.vehicles ?? [];
   const active = incident.status === "active";
 
   const visible = newestFirst.slice(0, earlierShown);
@@ -213,11 +214,11 @@ export default function IncidentDetailPage() {
             </div>
           </div>
 
-          {incident.vehicles?.length > 0 && (
+          {vehicles.length > 0 && (
             <div>
               <p className="text-xs text-ink-muted uppercase tracking-wide mb-2">Vehicles</p>
               <div className="flex flex-wrap gap-1">
-                {incident.vehicles.map((v) => (
+                {vehicles.map((v) => (
                   <span key={v} className="text-xs bg-raised text-ink-2 px-2 py-0.5 rounded font-mono">{v}</span>
                 ))}
               </div>