feat(campaigns): distinguish gift-CTA click from generic email click

Mailjet's click event includes the actual URL the recipient clicked. We
previously bumped every click — CTA button, mailto support, footer link —
to status='clicked' indiscriminately. Now we additionally flag clicks on
the Giftbit shortlink (matched by r.gift_url prefix, fallback to gft.link
or giftbit.com host) as the high-signal "gift_link_clicked" event.

Adds:
- recipient.gift_link_clicked (bool) + gift_clicked_at (ISO timestamp),
  set on first matching click; later non-gift clicks don't unset
- counters.gift_clicked aggregated alongside existing status counters
- "Cadeau cliqué" counter card on detail page (deep-purple, redeem icon)
- 🎁 redeem icon next to status chip when the recipient engaged
- CSV report: new gift_link_clicked + gift_clicked_at columns

Why this matters: "opened" is noisy (Apple Mail Privacy Protection, image
proxies prefetch). A click on the CTA is the only reliable indicator
that the offer landed and the recipient is engaging.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

apps/ops/src/modules/campaigns/pages/CampaignDetailPage.vue

@@ -28,7 +28,21 @@
       </q-card-section></q-card>
       <q-card flat bordered class="col-6 col-md-2"><q-card-section class="text-center">
         <div class="text-h5 text-blue">{{ counterFor('clicked') }}</div>
-        <div class="text-caption text-grey-7">Cliqués</div>
+        <div class="text-caption text-grey-7">
+          Cliqués
+          <q-icon name="info" size="12px" class="q-ml-xs">
+            <q-tooltip>Tous liens confondus (CTA, support, footer…)</q-tooltip>
+          </q-icon>
+        </div>
+      </q-card-section></q-card>
+      <q-card flat bordered class="col-6 col-md-2"><q-card-section class="text-center">
+        <div class="text-h5 text-deep-purple-7">🎁 {{ campaign.counters?.gift_clicked || 0 }}</div>
+        <div class="text-caption text-grey-7">
+          Cadeau cliqué
+          <q-icon name="info" size="12px" class="q-ml-xs">
+            <q-tooltip>Le destinataire a cliqué le bouton CTA / lien Giftbit — signal d'engagement réel avec l'offre</q-tooltip>
+          </q-icon>
+        </div>
       </q-card-section></q-card>
       <q-card flat bordered class="col-6 col-md-2"><q-card-section class="text-center">
         <div class="text-h5 text-orange">{{ counterFor('queued') }}</div>
@@ -60,6 +74,9 @@
       <template v-slot:body-cell-status="props">
         <q-td :props="props">
           <q-chip dense size="sm" :color="statusColor(props.row.status)" text-color="white" :label="statusLabel(props.row.status)" />
+          <q-icon v-if="props.row.gift_link_clicked" name="redeem" color="deep-purple-7" size="18px" class="q-ml-xs">
+            <q-tooltip>Cadeau cliqué {{ props.row.gift_clicked_at ? `le ${new Date(props.row.gift_clicked_at).toLocaleString('fr-CA')}` : '' }}</q-tooltip>
+          </q-icon>
         </q-td>
       </template>
       <template v-slot:body-cell-customer="props">

services/targo-hub/lib/campaigns.js

@@ -625,12 +625,16 @@ function loadCampaign (id) {
 }
 
 function saveCampaign (campaign) {
-  // Recompute counters from recipients every save — single source of truth
+  // Recompute counters from recipients every save — single source of truth.
+  // gift_clicked is the high-value engagement signal (recipient clicked the
+  // CTA button leading to the Giftbit shortlink), tracked separately from
+  // the generic 'clicked' status which fires on any link in the email.
   const c = { ...campaign }
   c.counters = (c.recipients || []).reduce((acc, r) => {
     acc[r.status] = (acc[r.status] || 0) + 1
+    if (r.gift_link_clicked) acc.gift_clicked++
     return acc
-  }, { total: (c.recipients || []).length })
+  }, { total: (c.recipients || []).length, gift_clicked: 0 })
   fs.writeFileSync(campaignPath(c.id), JSON.stringify(c, null, 2))
   return c
 }
@@ -932,6 +936,18 @@ function applyWebhookEvent (ev) {
   const customId = String(ev.CustomID || ev.custom_id || '')
   const msgId    = String(ev.MessageID || ev.message_id || '')
 
+  // Mailjet click events include the original URL the recipient clicked. We
+  // distinguish "clicked the gift CTA" (the actionable engagement signal)
+  // from "clicked the support email / footer link" (low-signal). Match the
+  // recipient's stored gift_url first (exact), with a host-level fallback
+  // for shortlink redirects (gft.link / giftbit.com).
+  function isGiftClick (r, ev) {
+    const clickedUrl = String(ev.url || ev.URL || '')
+    if (!clickedUrl) return false
+    if (r.gift_url && clickedUrl.startsWith(r.gift_url)) return true
+    return /(?:^|\/\/)(?:[\w-]+\.)?(?:gft\.link|giftbit\.com)/i.test(clickedUrl)
+  }
+
   // Fast path: parse CustomID to skip the campaign scan entirely
   if (customId && customId.includes(':')) {
     const [campId, idxStr] = customId.split(':')
@@ -941,7 +957,15 @@ function applyWebhookEvent (ev) {
       const r = c.recipients[idx]
       r.status = newStatus
       if (newStatus === 'opened')  r.opened_at  = new Date((ev.time || 0) * 1000).toISOString()
-      if (newStatus === 'clicked') r.clicked_at = new Date((ev.time || 0) * 1000).toISOString()
+      if (newStatus === 'clicked') {
+        r.clicked_at = new Date((ev.time || 0) * 1000).toISOString()
+        // Flag the high-value signal — recipient engaged with the offer.
+        // Once true, stays true (later non-gift clicks don't unset it).
+        if (isGiftClick(r, ev) && !r.gift_link_clicked) {
+          r.gift_link_clicked = true
+          r.gift_clicked_at = r.clicked_at
+        }
+      }
       if (newStatus === 'bounced' || newStatus === 'failed') {
         r.error = ev.error || ev.error_related_to || ev.event
       }
@@ -961,7 +985,13 @@ function applyWebhookEvent (ev) {
       if (String(r.mailjet_uuid) !== msgId) continue
       r.status = newStatus
       if (newStatus === 'opened')  r.opened_at  = new Date((ev.time || 0) * 1000).toISOString()
-      if (newStatus === 'clicked') r.clicked_at = new Date((ev.time || 0) * 1000).toISOString()
+      if (newStatus === 'clicked') {
+        r.clicked_at = new Date((ev.time || 0) * 1000).toISOString()
+        if (isGiftClick(r, ev) && !r.gift_link_clicked) {
+          r.gift_link_clicked = true
+          r.gift_clicked_at = r.clicked_at
+        }
+      }
       if (newStatus === 'bounced' || newStatus === 'failed') {
         r.error = ev.error || ev.error_related_to || ev.event
       }
@@ -1520,7 +1550,9 @@ async function handle (req, res, method, path) {
     const headers = [
       'row', 'firstname', 'lastname', 'email', 'phone', 'language', 'customer_id',
       'civic_address', 'city', 'postal_code', 'gift_value_cents', 'gift_url', 'giftbit_uuid',
-      'status', 'excluded', 'sent_at', 'opened_at', 'clicked_at', 'mailjet_uuid', 'error',
+      'status', 'excluded', 'sent_at', 'opened_at', 'clicked_at',
+      'gift_link_clicked', 'gift_clicked_at',
+      'mailjet_uuid', 'error',
     ]
     const esc = (v) => {
       if (v == null) return ''
@@ -1533,6 +1565,7 @@ async function handle (req, res, method, path) {
         r.row_index, r.firstname, r.lastname, r.email, r.phone, r.language, r.customer_id,
         r.civic_address, r.city, r.postal_code, r.gift_value_cents, r.gift_url, r.giftbit_uuid,
         r.status, r.excluded ? 'true' : 'false', r.sent_at, r.opened_at, r.clicked_at,
+        r.gift_link_clicked ? 'true' : 'false', r.gift_clicked_at,
         r.mailjet_uuid, r.error,
       ].map(esc).join(','))
     }