resumeCampaign resets semana_iniciada_em to avoid immediate escalation

resumeCampaign only updated status/pause_reason, so a campaign auto-paused
for many days and then resumed could immediately satisfy
escalateWeeklyLimits' 7-day check and double its daily limit right after
coming back from an unhealthy state -- the opposite of the intended
safety behavior. Now resumeCampaign also stamps semana_iniciada_em to
datetime('now'), resetting the weekly clock on every resume.

src/outreach/campaign-store.mjs

@@ -62,9 +62,14 @@ export function setCampaignStatus(db, campaignId, status, pauseReason = null) {
 // So avanca campanha que estiver de fato pausada — retomar uma campanha em
 // rascunho, por exemplo, deveria usar setCampaignStatus(db, id, 'rodando').
 export function resumeCampaign(db, campaignId) {
+  // Reseta semana_iniciada_em pra agora: uma campanha que ficou pausada (por
+  // saude ruim ou motivo manual) por varios dias nao pode, ao ser retomada,
+  // já satisfazer o "rodando ha 7+ dias" do escalateWeeklyLimits e dobrar o
+  // limite diario logo de cara — isso inverteria a logica de seguranca.
   db.prepare(
-    `UPDATE outreach_campaigns SET status = 'rodando', pause_reason = NULL, updated_at = datetime('now')
-     WHERE id = ? AND status = 'pausado'`
+    `UPDATE outreach_campaigns
+        SET status = 'rodando', pause_reason = NULL, semana_iniciada_em = datetime('now'), updated_at = datetime('now')
+      WHERE id = ? AND status = 'pausado'`
   ).run(campaignId);
   return getCampaign(db, campaignId);
 }