fix: proširi bilješke na članove tima i osvježi kalendar

Widget Bilješke sada omogućuje odabir više članova tima (ne samo
servisera), a backend validacija i testovi su usklađeni.

Dodatno, nakon realtime service_note notifikacije sada se osvježava
service-notes store, te create flow više ne briše lokalne bilješke kada
odgovor vrati praznu listu.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

frontend/src/components/layout/ServiceNotesWidget.jsx

@@ -24,7 +24,7 @@ export default function ServiceNotesWidget({
     canManageRecipients = false,
     activeTasks = [],
     activeWorkOrders = [],
-    servicers = [],
+    teamMembers = [],
     onCreate,
     onClose,
 }) {
@@ -156,7 +156,7 @@ export default function ServiceNotesWidget({
                     className="w-full rounded-md border border-border-hairline bg-canvas-base px-2 py-1.5 text-xs text-text-main"
                 >
                     <option value="self">Notifikacija samo meni</option>
-                    {canManageRecipients && <option value="member">Notifikacija serviserima</option>}
+                    {canManageRecipients && <option value="member">Notifikacija odabranim članovima tima</option>}
                     {canManageRecipients && <option value="team">Notifikacija svim članovima tima</option>}
                 </select>
                 {canManageRecipients && audience === 'member' && (
@@ -167,10 +167,10 @@ export default function ServiceNotesWidget({
                             const selected = Array.from(event.currentTarget.selectedOptions).map((option) => option.value);
                             setTargetUsers(selected);
                         }}
-                        size={Math.min(6, Math.max(3, servicers.length || 3))}
+                        size={Math.min(6, Math.max(3, teamMembers.length || 3))}
                         className="w-full rounded-md border border-border-hairline bg-canvas-base px-2 py-1.5 text-xs text-text-main"
                     >
-                        {servicers.map((member) => (
+                        {teamMembers.map((member) => (
                             <option key={member.id} value={member.id}>
                                 {member.full_name || member.email}
                             </option>
@@ -179,7 +179,7 @@ export default function ServiceNotesWidget({
                 )}
                 {canManageRecipients && audience === 'member' && (
                     <p className="text-[10px] text-text-muted">
-                        Držite Ctrl (ili Cmd) za odabir više servisera.
+                        Držite Ctrl (ili Cmd) za odabir više članova tima.
                     </p>
                 )}
                 <button