feat(uat-batch-16): Interest Overview cleanup — hide legacy reminder panel, deprioritize PaymentsSection

Two coordinated layout changes on the interest Overview tab so the
active milestone gets visual priority.

- Legacy `interest.reminderEnabled` panel removed from Overview. The
  field still drives the auto-follow-up worker
  (`processFollowUpReminders`) and the REMINDERS section + bell-in-
  header surface active reminders, so the read-only duplicate panel
  was pure noise. Backend behaviour unchanged; no schema impact.
- PaymentsSection mount relocated from above the milestone strip to
  below it. The active milestone above carries the rep's day-to-day
  attention; deposits-tracking is reference / history once expected.
  Render order: past strip → current milestone(s) → future
  (collapsed) → PaymentsSection → Lead/Source grid. Pre-Reservation
  the section still doesn't render at all (unchanged). Collapsed-bar
  + summary-chip refinement parked.

tsc clean. 1419/1419 vitest pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/interests/interest-tabs.tsx

@@ -987,14 +987,8 @@ function OverviewTab({
           deposit_paid stage server-side. Hidden before the reservation
           stage: no deposit is expected yet, so the empty card is just
           noise — the next-milestone card carries the actionable copy
-          instead. */}
-      {showPaymentsSection ? (
-        <PaymentsSection
-          interestId={interestId}
-          depositExpectedAmount={interest.depositExpectedAmount ?? null}
-          depositExpectedCurrency={interest.depositExpectedCurrency ?? null}
-        />
-      ) : null}
+          instead. Render order: deprioritized below the milestone strip
+          so the rep's eye lands on the active step first. */}
       {/* Pre-reservation: the dedicated "Next step" guidance card was
           removed in favour of a brighter NEXT STEP pill on the active
           MilestoneSection below (it already owns the workflow actions —
@@ -1067,6 +1061,18 @@ function OverviewTab({
         />
       )}
 
+      {/* Payments section relocated below milestones (was above): the
+          deposit-tracking surface is reference/history, not the rep's
+          primary focus once they're at Reservation+. The active
+          milestone above carries the actionable copy. */}
+      {showPaymentsSection ? (
+        <PaymentsSection
+          interestId={interestId}
+          depositExpectedAmount={interest.depositExpectedAmount ?? null}
+          depositExpectedCurrency={interest.depositExpectedCurrency ?? null}
+        />
+      ) : null}
+
       <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
         {/* Lead & Source (editable) */}
         <div className="space-y-1">
@@ -1199,19 +1205,12 @@ function OverviewTab({
           </dl>
         </div>
 
-        {/* Reminder */}
-        {interest.reminderEnabled && (
-          <div className="space-y-1">
-            <h3 className="text-sm font-medium mb-2">Reminder</h3>
-            <dl>
-              <InfoRow
-                label="Reminder Days"
-                value={interest.reminderDays ? `${interest.reminderDays} days` : null}
-              />
-              <InfoRow label="Last Fired" value={formatDate(interest.reminderLastFired)} />
-            </dl>
-          </div>
-        )}
+        {/* Legacy `interest.reminderEnabled` / `reminderDays` / `reminderLastFired`
+            still drive the auto-follow-up worker (`processFollowUpReminders`),
+            but the Overview surface for them is hidden: the REMINDERS
+            section below shows the full reminders table and the bell-in-
+            header surfaces active counts. Removing the duplicate read-only
+            panel cleans Overview without affecting the backend job. */}
 
         {/* Most-recent threaded note teaser. Saves a click into the Notes
             tab when the rep just wants to peek at "what was discussed last."