feat(ci): email notification on success or failure

Sends an email via the domain's own SMTP (mail.loverde.com.br:587,
STARTTLS) as the last step of both test.yml and beta.yml, using
if: always() so it fires regardless of the job's outcome - subject/body
include job.status, branch, commit and a link to the run. Credentials
(SMTP_USER, SMTP_PASS, NOTIFY_EMAIL_TO) come from repo/org secrets, not
hardcoded here.

.gitea/workflows/test.yml

@@ -24,3 +24,28 @@ jobs:
 
       - name: Run tests with coverage
         run: fastlane tests
+
+      - name: Email notification
+        if: always()
+        env:
+          SMTP_USER: ${{ secrets.SMTP_USER }}
+          SMTP_PASS: ${{ secrets.SMTP_PASS }}
+          NOTIFY_EMAIL_TO: ${{ secrets.NOTIFY_EMAIL_TO }}
+        run: |
+          STATUS="${{ job.status }}"
+          SUBJECT="[PediFoods CI] ${STATUS} - ${{ github.workflow }}"
+          BODY="Job: ${{ github.workflow }} / ${{ github.job }}
+          Status: ${STATUS}
+          Branch: ${{ github.ref_name }}
+          Commit: ${{ github.sha }}
+          Run: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+
+          printf 'From: PediFoods CI <%s>\r\nTo: %s\r\nSubject: %s\r\n\r\n%s\r\n' \
+            "$SMTP_USER" "$NOTIFY_EMAIL_TO" "$SUBJECT" "$BODY" | \
+          curl --silent --show-error \
+            --url "smtp://mail.loverde.com.br:587" \
+            --ssl-reqd \
+            --mail-from "$SMTP_USER" \
+            --mail-rcpt "$NOTIFY_EMAIL_TO" \
+            --user "$SMTP_USER:$SMTP_PASS" \
+            --upload-file - || true