refactor(admin/members): dedupe STATUS_LABELS + reactive row update

Promote inline STATUS_LABELS copies (admin/members/index.vue,
member/account.vue) into app/config/memberStatus.js, matching the
app/config/circles.js pattern. Drive admin/members/[id].vue status
select from the same constant — completes the alignment started in
441a5f5.

Use the softer member-facing copy as canonical: "Paused" / "Closed"
instead of "Suspended" / "Cancelled".

Also fix markSlackInvited's non-reactive Object.assign on a plain
object inside a useFetch array — replace with index-find + element
reassignment so the row UI refreshes without a manual reload.

app/pages/admin/members/[id].vue

@@ -63,10 +63,11 @@
               <div class="field">
                 <label>Status</label>
                 <select v-model="form.status">
-                  <option value="pending_payment">pending_payment</option>
-                  <option value="active">active</option>
-                  <option value="suspended">suspended</option>
-                  <option value="cancelled">cancelled</option>
+                  <option
+                    v-for="(label, value) in STATUS_LABELS"
+                    :key="value"
+                    :value="value"
+                  >{{ label }}</option>
                 </select>
               </div>
               <div class="field">
@@ -242,6 +243,7 @@
 
 <script setup>
 import { formatActivity } from '~/utils/activityText'
+import { STATUS_LABELS } from '~/config/memberStatus'
 
 definePageMeta({
   layout: "admin",

app/pages/admin/members/index.vue

@@ -468,6 +468,8 @@
 </template>
 
 <script setup>
+import { STATUS_LABELS, statusLabel } from "~/config/memberStatus";
+
 definePageMeta({
   layout: "admin",
   middleware: "admin",
@@ -488,14 +490,6 @@ const statusFilter = ref("");
 const sortKey = ref("createdAt");
 const sortDir = ref("desc");
 
-const STATUS_LABELS = {
-  active: "Active",
-  pending_payment: "Payment setup incomplete",
-  suspended: "Suspended",
-  cancelled: "Cancelled",
-};
-const statusLabel = (s) => STATUS_LABELS[s] || "Pending";
-
 const toggleSort = (key) => {
   if (sortKey.value === key) {
     sortDir.value = sortDir.value === "asc" ? "desc" : "asc";
@@ -845,7 +839,8 @@ const markSlackInvited = async (member) => {
         body: { slackInvited: true },
       },
     );
-    Object.assign(member, res.member);
+    const idx = members.value.findIndex((m) => m._id === member._id);
+    if (idx !== -1) members.value[idx] = { ...members.value[idx], ...res.member };
     toast.add({ title: "Marked as Slack invited", color: "success" });
   } catch (err) {
     toast.add({