fix(migration): guard 003 against pre-existing language column

- Add 'language' column to waitlist_entries (en/it/es/fr/de, default en)
- Accept 'lang' field in POST /waitlist request body
- Translate confirmation email (subject, badge, heading, body, CTA, footer)
- Translate confirm/unsubscribe result HTML pages
- Return localized success message in WaitlistResponse
- Update language preference on duplicate signups
- Alembic migration 003_add_language_column

.env.example

@@ -20,3 +20,6 @@ BREVO_LIST_ID=0
 CONFIRM_SECRET=replace-with-a-long-random-string
 CONFIRM_BASE_URL=https://adiuvai.com
 CONFIRM_TOKEN_EXPIRY_HOURS=48
+
+# Daily report — leave empty to disable
+REPORT_RECIPIENT_EMAIL=

alembic/versions/002_add_gdpr_fields.py

@@ -0,0 +1,25 @@
+"""add consent_given_at and anonymized_at columns
+
+Revision ID: 002
+Revises: 001
+Create Date: 2026-04-11
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+revision: str = "002"
+down_revision: Union[str, None] = "001"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column("waitlist_entries", sa.Column("consent_given_at", sa.DateTime(timezone=True), nullable=True))
+    op.add_column("waitlist_entries", sa.Column("anonymized_at", sa.DateTime(timezone=True), nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column("waitlist_entries", "anonymized_at")
+    op.drop_column("waitlist_entries", "consent_given_at")

alembic/versions/003_add_language_column.py

@@ -0,0 +1,34 @@
+"""add language column to waitlist_entries
+
+Revision ID: 003
+Revises: 002
+Create Date: 2026-04-12
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+revision: str = "003"
+down_revision: Union[str, None] = "002"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Guard: column may already exist from a prior manual migration
+    op.execute("""
+        DO $$
+        BEGIN
+            IF NOT EXISTS (
+                SELECT 1 FROM information_schema.columns
+                WHERE table_name = 'waitlist_entries' AND column_name = 'language'
+            ) THEN
+                ALTER TABLE waitlist_entries ADD COLUMN language VARCHAR(5) NOT NULL DEFAULT 'en';
+            END IF;
+        END $$;
+    """)
+
+
+def downgrade() -> None:
+    op.drop_column("waitlist_entries", "language")

app/brevo.py

@@ -15,6 +15,65 @@ logger = logging.getLogger(__name__)
 
 BREVO_API = "https://api.brevo.com/v3"
 
+# ── Translations for transactional emails ──────────────────────────────
+_EMAIL_I18N: dict[str, dict[str, str]] = {
+    "en": {
+        "subject": "Confirm your spot on the adiuvAI waitlist",
+        "preheader": "Confirm your email to secure your early access spot on the adiuvAI waitlist.",
+        "badge": "One more step",
+        "heading": "Confirm your spot on<br>the waitlist",
+        "body": "Thanks for signing up! Please confirm your email address so we can keep you in the loop when adiuvAI launches.",
+        "cta": "Confirm my email",
+        "expiry": "This link expires in {hours} hours.",
+        "footer": "If you didn't sign up, simply ignore this email.",
+    },
+    "it": {
+        "subject": "Conferma il tuo posto nella lista d'attesa di adiuvAI",
+        "preheader": "Conferma la tua email per assicurarti un accesso anticipato ad adiuvAI.",
+        "badge": "Ancora un passaggio",
+        "heading": "Conferma il tuo posto<br>nella lista d'attesa",
+        "body": "Grazie per esserti iscritto! Conferma il tuo indirizzo email così potremo aggiornarti quando adiuvAI sarà disponibile.",
+        "cta": "Conferma la mia email",
+        "expiry": "Questo link scade tra {hours} ore.",
+        "footer": "Se non ti sei iscritto, ignora semplicemente questa email.",
+    },
+    "es": {
+        "subject": "Confirma tu lugar en la lista de espera de adiuvAI",
+        "preheader": "Confirma tu correo para asegurar tu acceso anticipado a adiuvAI.",
+        "badge": "Un paso más",
+        "heading": "Confirma tu lugar en<br>la lista de espera",
+        "body": "¡Gracias por registrarte! Confirma tu dirección de correo para que podamos avisarte cuando adiuvAI esté listo.",
+        "cta": "Confirmar mi correo",
+        "expiry": "Este enlace caduca en {hours} horas.",
+        "footer": "Si no te registraste, simplemente ignora este correo.",
+    },
+    "fr": {
+        "subject": "Confirmez votre place sur la liste d'attente d'adiuvAI",
+        "preheader": "Confirmez votre e‑mail pour sécuriser votre accès anticipé à adiuvAI.",
+        "badge": "Encore une étape",
+        "heading": "Confirmez votre place sur<br>la liste d'attente",
+        "body": "Merci de vous être inscrit ! Veuillez confirmer votre adresse e‑mail pour que nous puissions vous tenir informé du lancement d'adiuvAI.",
+        "cta": "Confirmer mon e‑mail",
+        "expiry": "Ce lien expire dans {hours} heures.",
+        "footer": "Si vous ne vous êtes pas inscrit, ignorez simplement cet e‑mail.",
+    },
+    "de": {
+        "subject": "Bestätige deinen Platz auf der adiuvAI-Warteliste",
+        "preheader": "Bestätige deine E‑Mail, um dir den frühen Zugang zu adiuvAI zu sichern.",
+        "badge": "Noch ein Schritt",
+        "heading": "Bestätige deinen Platz<br>auf der Warteliste",
+        "body": "Danke für deine Anmeldung! Bitte bestätige deine E‑Mail-Adresse, damit wir dich informieren können, wenn adiuvAI startet.",
+        "cta": "Meine E‑Mail bestätigen",
+        "expiry": "Dieser Link läuft in {hours} Stunden ab.",
+        "footer": "Falls du dich nicht angemeldet hast, ignoriere diese E‑Mail einfach.",
+    },
+}
+
+
+def _t(lang: str, key: str) -> str:
+    """Get translated string, falling back to English."""
+    return _EMAIL_I18N.get(lang, _EMAIL_I18N["en"]).get(key, _EMAIL_I18N["en"][key])
+
 
 def _headers() -> dict[str, str]:
     return {
@@ -24,7 +83,7 @@ def _headers() -> dict[str, str]:
     }
 
 
-async def send_confirmation_email(email: str, confirm_url: str) -> bool:
+async def send_confirmation_email(email: str, confirm_url: str, unsubscribe_url: str = "", lang: str = "en") -> bool:
     """Send a double opt-in confirmation email. Returns True on success."""
     if not settings.brevo_configured:
         logger.warning("Brevo not configured — skipping confirmation email for %s***", email[:3])
@@ -36,8 +95,8 @@ async def send_confirmation_email(email: str, confirm_url: str) -> bool:
             "email": settings.BREVO_SENDER_EMAIL,
         },
         "to": [{"email": email}],
-        "subject": "Confirm your spot on the adiuvAI waitlist",
+        "subject": _t(lang, "subject"),
-        "htmlContent": _confirmation_html(confirm_url),
+        "htmlContent": _confirmation_html(confirm_url, unsubscribe_url, lang),
     }
 
     try:
@@ -78,18 +137,27 @@ async def add_contact_to_list(email: str) -> bool:
         return False
 
 
-def _confirmation_html(confirm_url: str) -> str:
+def _confirmation_html(confirm_url: str, unsubscribe_url: str = "", lang: str = "en") -> str:
     """Email template aligned with the adiuvAI landing page brand."""
+    html_lang = lang if lang in ("en", "it", "es", "fr", "de") else "en"
+    badge = _t(lang, "badge")
+    heading = _t(lang, "heading")
+    body = _t(lang, "body")
+    cta = _t(lang, "cta")
+    expiry = _t(lang, "expiry").format(hours=settings.CONFIRM_TOKEN_EXPIRY_HOURS)
+    preheader = _t(lang, "preheader")
+    footer = _t(lang, "footer")
+    unsub_label = {"en": "Unsubscribe", "it": "Annulla iscrizione", "es": "Cancelar suscripción", "fr": "Se désabonner", "de": "Abmelden"}.get(lang, "Unsubscribe")
     return f"""\
 <!DOCTYPE html>
-<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
+<html lang="{html_lang}" xmlns="http://www.w3.org/1999/xhtml">
 <head>
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width,initial-scale=1">
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <meta name="color-scheme" content="light">
   <meta name="supported-color-schemes" content="light">
-  <title>Confirm your spot — adiuvAI</title>
+  <title>{_t(lang, "subject")} — adiuvAI</title>
   <!--[if mso]><style>table,td{{font-family:Arial,sans-serif!important;}}</style><![endif]-->
 </head>
 <body style="margin:0;padding:0;width:100%;background-color:#f4edf3;
@@ -98,7 +166,7 @@ def _confirmation_html(confirm_url: str) -> str:
 
   <!-- Preheader (hidden text for inbox preview) -->
   <div style="display:none;font-size:1px;color:#f4edf3;line-height:1px;max-height:0;max-width:0;opacity:0;overflow:hidden;">
-    Confirm your email to secure your early access spot on the adiuvAI waitlist.
+    {preheader}
   </div>
 
   <!-- Outer wrapper -->
@@ -156,21 +224,20 @@ def _confirmation_html(confirm_url: str) -> str:
               border:1px solid rgba(251,200,129,0.2);
               font-size:11px;font-weight:600;letter-spacing:0.06em;
               text-transform:uppercase;color:#e5a94e;">
-              &#9679;&ensp;One more step
+              &#9679;&ensp;{badge}
             </td></tr>
           </table>
 
           <!-- Heading -->
           <h1 style="margin:0 0 16px;font-size:24px;font-weight:600;
             letter-spacing:-0.03em;line-height:1.2;color:#040404;text-align:center;">
-            Confirm your spot on<br>the waitlist
+            {heading}
           </h1>
 
           <!-- Paragraph -->
           <p style="margin:0 0 28px;font-size:15px;line-height:1.7;color:#8a8ea9;
             text-align:center;">
-            Thanks for signing up! Please confirm your email address
+            {body}
-            so we can keep you in the loop when adiuvAI launches.
           </p>
 
           <!-- CTA Button -->
@@ -184,14 +251,14 @@ def _confirmation_html(confirm_url: str) -> str:
                    color:#fbfbfb;text-decoration:none;
                    border-radius:50px;
                    font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;">
-                Confirm my email
+                {cta}
               </a>
             </td></tr>
           </table>
 
           <!-- Expiry note -->
           <p style="margin:20px 0 0;font-size:13px;color:#c8c3cd;text-align:center;">
-            This link expires in {settings.CONFIRM_TOKEN_EXPIRY_HOURS} hours.
+            {expiry}
           </p>
 
         </td></tr>
@@ -206,11 +273,12 @@ def _confirmation_html(confirm_url: str) -> str:
         <!-- Footer -->
         <tr><td style="padding:20px 40px 32px;text-align:center;">
           <p style="margin:0;font-size:12px;color:#c8c3cd;line-height:1.5;">
-            If you didn't sign up, simply ignore this email.
+            {footer}
           </p>
           <p style="margin:8px 0 0;font-size:12px;color:#c8c3cd;">
             <a href="https://adiuvai.com" style="color:#8a8ea9;text-decoration:underline;
               text-underline-offset:2px;">adiuvai.com</a>
+            {f'&ensp;·&ensp;<a href="{unsubscribe_url}" style="color:#8a8ea9;text-decoration:underline;text-underline-offset:2px;">{unsub_label}</a>' if unsubscribe_url else ''}
           </p>
         </td></tr>
 

app/cleanup.py

@@ -0,0 +1,58 @@
+"""
+Periodic cleanup: anonymize unconfirmed waitlist entries older than CONFIRM_TOKEN_EXPIRY_HOURS.
+
+Run as a cron job:
+    python -m app.cleanup
+
+Or integrate into docker-compose with a one-shot service.
+"""
+
+import asyncio
+import datetime
+import logging
+
+from sqlalchemy import select, and_
+
+from app.config import settings
+from app.db import async_session
+from app.models import WaitlistEntry
+from app.routes import _anonymize_entry
+
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+
+async def anonymize_expired() -> int:
+    """Anonymize all unconfirmed entries past the token expiry window. Returns count."""
+    cutoff = datetime.datetime.now(datetime.timezone.utc) - datetime.timedelta(
+        hours=settings.CONFIRM_TOKEN_EXPIRY_HOURS
+    )
+
+    async with async_session() as db:
+        result = await db.execute(
+            select(WaitlistEntry).where(
+                and_(
+                    WaitlistEntry.confirmed == False,  # noqa: E712
+                    WaitlistEntry.anonymized_at == None,  # noqa: E711
+                    WaitlistEntry.created_at < cutoff,
+                )
+            )
+        )
+        entries = result.scalars().all()
+
+        for entry in entries:
+            _anonymize_entry(entry)
+
+        await db.commit()
+
+    if entries:
+        logger.info("Anonymized %d expired unconfirmed entries", len(entries))
+    else:
+        logger.info("No expired unconfirmed entries to anonymize")
+
+    return len(entries)
+
+
+if __name__ == "__main__":
+    count = asyncio.run(anonymize_expired())
+    raise SystemExit(0)

app/config.py

@@ -20,6 +20,9 @@ class Settings(BaseSettings):
     CONFIRM_BASE_URL: str = "https://adiuvai.com"
     CONFIRM_TOKEN_EXPIRY_HOURS: int = 48
 
+    # Daily report
+    REPORT_RECIPIENT_EMAIL: str = ""  # your email — leave empty to disable
+
     model_config = {"env_file": ".env", "env_file_encoding": "utf-8"}
 
     @property

app/daily_report.py

@@ -0,0 +1,276 @@
+"""
+Daily waitlist report — sends an evening summary email via Brevo.
+
+Run as a cron job (e.g. every day at 21:00):
+    python -m app.daily_report
+
+Requires REPORT_RECIPIENT_EMAIL and BREVO_API_KEY in .env.
+"""
+
+import asyncio
+import datetime
+import logging
+
+import httpx
+from sqlalchemy import func, select, and_
+
+from app.config import settings
+from app.db import async_session
+from app.models import WaitlistEntry
+
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+
+async def gather_stats() -> dict:
+    """Collect today's waitlist statistics."""
+    now = datetime.datetime.now(datetime.timezone.utc)
+    today_start = now.replace(hour=0, minute=0, second=0, microsecond=0)
+
+    async with async_session() as db:
+        # Total counts
+        total = (await db.execute(select(func.count(WaitlistEntry.id)))).scalar() or 0
+
+        confirmed_total = (await db.execute(
+            select(func.count(WaitlistEntry.id)).where(WaitlistEntry.confirmed == True)  # noqa: E712
+        )).scalar() or 0
+
+        anonymized_total = (await db.execute(
+            select(func.count(WaitlistEntry.id)).where(WaitlistEntry.anonymized_at != None)  # noqa: E711
+        )).scalar() or 0
+
+        pending = total - confirmed_total - anonymized_total
+
+        # Today's activity
+        new_today = (await db.execute(
+            select(func.count(WaitlistEntry.id)).where(
+                and_(
+                    WaitlistEntry.created_at >= today_start,
+                    WaitlistEntry.anonymized_at == None,  # noqa: E711
+                )
+            )
+        )).scalar() or 0
+
+        confirmed_today = (await db.execute(
+            select(func.count(WaitlistEntry.id)).where(
+                and_(
+                    WaitlistEntry.confirmed == True,  # noqa: E712
+                    WaitlistEntry.consent_given_at >= today_start,
+                )
+            )
+        )).scalar() or 0
+
+        anonymized_today = (await db.execute(
+            select(func.count(WaitlistEntry.id)).where(
+                and_(
+                    WaitlistEntry.anonymized_at != None,  # noqa: E711
+                    WaitlistEntry.anonymized_at >= today_start,
+                )
+            )
+        )).scalar() or 0
+
+    return {
+        "date": now.strftime("%B %d, %Y"),
+        "total": total,
+        "confirmed_total": confirmed_total,
+        "pending": pending,
+        "anonymized_total": anonymized_total,
+        "new_today": new_today,
+        "confirmed_today": confirmed_today,
+        "anonymized_today": anonymized_today,
+        "conversion_rate": round(confirmed_total / total * 100, 1) if total > 0 else 0,
+    }
+
+
+async def send_report() -> bool:
+    """Gather stats and send the daily report email."""
+    if not settings.REPORT_RECIPIENT_EMAIL:
+        logger.warning("REPORT_RECIPIENT_EMAIL not set — skipping daily report")
+        return False
+
+    if not settings.brevo_configured:
+        logger.warning("Brevo not configured — skipping daily report")
+        return False
+
+    stats = await gather_stats()
+    html = _report_html(stats)
+
+    payload = {
+        "sender": {
+            "name": settings.BREVO_SENDER_NAME,
+            "email": settings.BREVO_SENDER_EMAIL,
+        },
+        "to": [{"email": settings.REPORT_RECIPIENT_EMAIL}],
+        "subject": f"Waitlist report — {stats['date']}",
+        "htmlContent": html,
+    }
+
+    headers = {
+        "api-key": settings.BREVO_API_KEY,
+        "Content-Type": "application/json",
+        "Accept": "application/json",
+    }
+
+    try:
+        async with httpx.AsyncClient(timeout=10) as client:
+            resp = await client.post(
+                "https://api.brevo.com/v3/smtp/email",
+                headers=headers,
+                json=payload,
+            )
+            resp.raise_for_status()
+            logger.info("Daily report sent to %s", settings.REPORT_RECIPIENT_EMAIL)
+            return True
+    except httpx.HTTPError:
+        logger.exception("Failed to send daily report")
+        return False
+
+
+def _report_html(s: dict) -> str:
+    """adiuvAI-branded daily report email."""
+
+    def _stat_cell(label: str, value, color: str = "#040404") -> str:
+        return f"""\
+      <td align="center" style="padding:16px 8px;">
+        <p style="margin:0;font-size:28px;font-weight:700;color:{color};
+          letter-spacing:-0.03em;line-height:1;">{value}</p>
+        <p style="margin:6px 0 0;font-size:11px;font-weight:600;color:#8a8ea9;
+          text-transform:uppercase;letter-spacing:0.06em;">{label}</p>
+      </td>"""
+
+    def _row(label: str, value, highlight: bool = False) -> str:
+        color = "#e5a94e" if highlight else "#040404"
+        return f"""\
+        <tr>
+          <td style="padding:10px 0;font-size:14px;color:#8a8ea9;border-bottom:1px solid #f4edf3;">
+            {label}
+          </td>
+          <td align="right" style="padding:10px 0;font-size:14px;font-weight:600;color:{color};
+            border-bottom:1px solid #f4edf3;">
+            {value}
+          </td>
+        </tr>"""
+
+    return f"""\
+<!DOCTYPE html>
+<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width,initial-scale=1">
+  <meta name="color-scheme" content="light">
+  <title>Waitlist Report — {s['date']}</title>
+  <!--[if mso]><style>table,td{{font-family:Arial,sans-serif!important;}}</style><![endif]-->
+</head>
+<body style="margin:0;padding:0;width:100%;background-color:#f4edf3;
+  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
+  -webkit-font-smoothing:antialiased;">
+
+  <div style="display:none;font-size:1px;color:#f4edf3;line-height:1px;max-height:0;max-width:0;opacity:0;overflow:hidden;">
+    {s['new_today']} new signups, {s['confirmed_total']} confirmed total ({s['conversion_rate']}% conversion)
+  </div>
+
+  <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0"
+         style="background-color:#f4edf3;">
+    <tr><td align="center" style="padding:48px 16px;">
+
+      <table role="presentation" width="520" cellpadding="0" cellspacing="0" border="0"
+             style="max-width:520px;width:100%;background-color:#ffffff;
+               border-radius:20px;overflow:hidden;
+               box-shadow:0 4px 16px rgba(0,0,0,0.03),0 1px 2px rgba(0,0,0,0.02);">
+
+        <!-- Gold bar -->
+        <tr><td style="height:4px;background:linear-gradient(135deg,#fbc881 0%,#e5a94e 100%);
+          font-size:0;line-height:0;">&nbsp;</td></tr>
+
+        <!-- Logo -->
+        <tr><td align="center" style="padding:32px 40px 0;">
+          <table role="presentation" cellpadding="0" cellspacing="0" border="0">
+            <tr>
+              <td style="padding-right:8px;vertical-align:middle;">
+                <!--[if !mso]><!-->
+                <svg viewBox="0 0 64 64" width="24" height="24" xmlns="http://www.w3.org/2000/svg"
+                     style="display:block;width:24px;height:24px;">
+                  <path d="M32,4 L48,32 L16,32 Z" fill="#fbc881"/>
+                  <path d="M16,32 L48,32 L32,60 Z" fill="#040404"/>
+                  <circle cx="32" cy="32" r="2.5" fill="#040404" opacity="0.18"/>
+                </svg>
+                <!--<![endif]-->
+              </td>
+              <td style="vertical-align:middle;font-size:16px;font-weight:400;
+                color:#040404;letter-spacing:-0.02em;">
+                adiuv<span style="font-weight:700;color:#e5a94e;">AI</span>
+              </td>
+            </tr>
+          </table>
+        </td></tr>
+
+        <!-- Header -->
+        <tr><td style="padding:24px 40px 0;text-align:center;">
+          <p style="margin:0 0 4px;font-size:11px;font-weight:600;letter-spacing:0.06em;
+            text-transform:uppercase;color:#e5a94e;">Daily Report</p>
+          <h1 style="margin:0;font-size:22px;font-weight:600;color:#040404;
+            letter-spacing:-0.03em;">{s['date']}</h1>
+        </td></tr>
+
+        <!-- Hero stats -->
+        <tr><td style="padding:28px 40px 0;">
+          <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0"
+                 style="background:#f4edf3;border-radius:14px;">
+            <tr>
+{_stat_cell("Confirmed", s['confirmed_total'], "#040404")}
+{_stat_cell("Pending", s['pending'], "#8a8ea9")}
+{_stat_cell("Conversion", f"{s['conversion_rate']}%", "#e5a94e")}
+            </tr>
+          </table>
+        </td></tr>
+
+        <!-- Today's activity -->
+        <tr><td style="padding:28px 40px 0;">
+          <p style="margin:0 0 12px;font-size:11px;font-weight:600;letter-spacing:0.06em;
+            text-transform:uppercase;color:#e5a94e;">Today's Activity</p>
+          <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0">
+{_row("New signups", f"+{s['new_today']}", highlight=s['new_today'] > 0)}
+{_row("Confirmed", f"+{s['confirmed_today']}", highlight=s['confirmed_today'] > 0)}
+{_row("Anonymized (expired/unsub)", s['anonymized_today'])}
+          </table>
+        </td></tr>
+
+        <!-- Totals -->
+        <tr><td style="padding:24px 40px 0;">
+          <p style="margin:0 0 12px;font-size:11px;font-weight:600;letter-spacing:0.06em;
+            text-transform:uppercase;color:#e5a94e;">All Time</p>
+          <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0">
+{_row("Total records", s['total'])}
+{_row("Confirmed", s['confirmed_total'], highlight=True)}
+{_row("Pending confirmation", s['pending'])}
+{_row("Anonymized", s['anonymized_total'])}
+          </table>
+        </td></tr>
+
+        <!-- Divider -->
+        <tr><td style="padding:28px 40px 0;">
+          <table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0">
+            <tr><td style="height:1px;background-color:#f4edf3;font-size:0;line-height:0;">&nbsp;</td></tr>
+          </table>
+        </td></tr>
+
+        <!-- Footer -->
+        <tr><td style="padding:16px 40px 28px;text-align:center;">
+          <p style="margin:0;font-size:12px;color:#c8c3cd;">
+            Automated report from
+            <a href="https://adiuvai.com" style="color:#8a8ea9;text-decoration:underline;
+              text-underline-offset:2px;">adiuvai.com</a>
+          </p>
+        </td></tr>
+
+      </table>
+
+    </td></tr>
+  </table>
+
+</body>
+</html>"""
+
+
+if __name__ == "__main__":
+    asyncio.run(send_report())

app/models.py

@@ -20,7 +20,14 @@ class WaitlistEntry(Base):
     email: Mapped[str] = mapped_column(String(320), unique=True, nullable=False, index=True)
     ip_address: Mapped[str | None] = mapped_column(String(45), nullable=True)
     source: Mapped[str | None] = mapped_column(String(64), nullable=True)
+    language: Mapped[str] = mapped_column(String(5), nullable=False, server_default=sa.text("'en'"))
     confirmed: Mapped[bool] = mapped_column(Boolean, default=False, server_default=sa.text("0"))
+    consent_given_at: Mapped[datetime.datetime | None] = mapped_column(
+        DateTime(timezone=True), nullable=True,
+    )
+    anonymized_at: Mapped[datetime.datetime | None] = mapped_column(
+        DateTime(timezone=True), nullable=True,
+    )
     created_at: Mapped[datetime.datetime] = mapped_column(
         DateTime(timezone=True),
         server_default=sa.text("CURRENT_TIMESTAMP"),

app/routes.py

@@ -1,4 +1,5 @@
 import asyncio
+import datetime
 import logging
 
 from fastapi import APIRouter, Depends, Request
@@ -31,13 +32,16 @@ async def join_waitlist(
     - Duplicate emails: idempotent — returns success without error.
     - Stores the Cloudflare-resolved client IP for analytics (not exposed).
     - Sends a confirmation email via Brevo (fire-and-forget).
+    - Records consent timestamp (GDPR Art. 7).
     """
     # Honeypot — bots fill hidden fields; silently "succeed"
     if body.website:
-        return WaitlistResponse()
+        return WaitlistResponse.for_lang(body.lang)
 
     email = body.email.lower().strip()
+    lang = body.lang
     ip = _get_client_ip(request)
+    now = datetime.datetime.now(datetime.timezone.utc)
 
     # Check for existing entry — idempotent
     existing = await db.execute(
@@ -46,14 +50,25 @@ async def join_waitlist(
     entry = existing.scalar_one_or_none()
 
     if entry is not None:
-        # Re-send confirmation if not yet confirmed
+        # Update language preference if changed
-        if not entry.confirmed and settings.brevo_configured:
+        if entry.language != lang:
+            entry.language = lang
+            await db.commit()
+        # Re-send confirmation if not yet confirmed (and not anonymized)
+        if not entry.confirmed and not entry.anonymized_at and settings.brevo_configured:
             token = generate_token(email)
             confirm_url = f"{settings.CONFIRM_BASE_URL}/api/v1/waitlist/confirm?token={token}"
-            asyncio.create_task(send_confirmation_email(email, confirm_url))
+            unsub_url = f"{settings.CONFIRM_BASE_URL}/api/v1/waitlist/unsubscribe?token={token}"
-        return WaitlistResponse()
+            asyncio.create_task(send_confirmation_email(email, confirm_url, unsub_url, lang=lang))
+        return WaitlistResponse.for_lang(lang)
 
-    entry = WaitlistEntry(email=email, ip_address=ip, source="website")
+    entry = WaitlistEntry(
+        email=email,
+        ip_address=ip,
+        source="website",
+        language=lang,
+        consent_given_at=now,
+    )
     db.add(entry)
     await db.commit()
 
@@ -63,9 +78,10 @@ async def join_waitlist(
     if settings.brevo_configured:
         token = generate_token(email)
         confirm_url = f"{settings.CONFIRM_BASE_URL}/api/v1/waitlist/confirm?token={token}"
-        asyncio.create_task(send_confirmation_email(email, confirm_url))
+        unsub_url = f"{settings.CONFIRM_BASE_URL}/api/v1/waitlist/unsubscribe?token={token}"
+        asyncio.create_task(send_confirmation_email(email, confirm_url, unsub_url, lang=lang))
 
-    return WaitlistResponse()
+    return WaitlistResponse.for_lang(lang)
 
 
 @router.get("/waitlist/confirm", response_class=HTMLResponse)
@@ -90,8 +106,12 @@ async def confirm_email(
     if entry is None:
         return HTMLResponse(content=_result_page(success=False), status_code=400)
 
+    lang = entry.language or "en"
+
     if not entry.confirmed:
         entry.confirmed = True
+        # Clear IP now that consent is confirmed — no longer needed
+        entry.ip_address = None
         await db.commit()
         logger.info("Email confirmed: %s***", email[:3])
 
@@ -99,27 +119,140 @@ async def confirm_email(
         if settings.brevo_configured:
             asyncio.create_task(add_contact_to_list(email))
 
-    return HTMLResponse(content=_result_page(success=True))
+    return HTMLResponse(content=_result_page(success=True, lang=lang))
 
 
-def _result_page(*, success: bool) -> str:
+@router.get("/waitlist/unsubscribe", response_class=HTMLResponse)
-    """Branded HTML response for confirmation result, matching the adiuvAI landing page."""
+async def unsubscribe(
+    token: str,
+    db: AsyncSession = Depends(get_db),
+) -> HTMLResponse:
+    """
+    GDPR erasure (Art. 17) — anonymize the entry.
+    Uses the same HMAC token system as confirmation.
+    """
+    email = verify_token(token)
+    if email is None:
+        return HTMLResponse(
+            content=_result_page(success=False, variant="unsubscribe"),
+            status_code=400,
+        )
+
+    result = await db.execute(
+        select(WaitlistEntry).where(WaitlistEntry.email == email)
+    )
+    entry = result.scalar_one_or_none()
+    if entry is None:
+        # Already gone — show success anyway (idempotent)
+        return HTMLResponse(content=_result_page(success=True, variant="unsubscribe"))
+
+    lang = entry.language or "en"
+    _anonymize_entry(entry)
+    await db.commit()
+    logger.info("Waitlist entry anonymized (unsubscribe)")
+
+    return HTMLResponse(content=_result_page(success=True, variant="unsubscribe", lang=lang))
+
+
+def _anonymize_entry(entry: WaitlistEntry) -> None:
+    """Strip all PII from a waitlist entry, keeping only anonymous analytics."""
+    now = datetime.datetime.now(datetime.timezone.utc)
+    entry.email = f"anon-{entry.id}@removed.invalid"
+    entry.ip_address = None
+    entry.consent_given_at = None
+    entry.anonymized_at = now
+
+
+def _result_page(*, success: bool, variant: str = "confirm", lang: str = "en") -> str:
+    """Branded HTML response for confirmation/unsubscribe result."""
+    # ── Translations for result pages ──
+    _PAGE_I18N: dict[str, dict[str, str]] = {
+        "en": {
+            "confirmed_title": "You’re confirmed!",
+            "confirmed_msg": "Your email has been verified. We’ll notify you when adiuvAI is ready.",
+            "invalid_confirm": "This confirmation link is no longer valid. Please sign up again.",
+            "removed_title": "Data removed",
+            "removed_msg": "Your personal data has been anonymized. You will not receive any further emails from us.",
+            "invalid_unsub": "This unsubscribe link is no longer valid. Contact privacy@adiuvai.com if you need help.",
+            "invalid_title": "Invalid or expired link",
+            "btn": "Go to adiuvai.com",
+        },
+        "it": {
+            "confirmed_title": "Sei confermato!",
+            "confirmed_msg": "La tua email è stata verificata. Ti avviseremo quando adiuvAI sarà pronto.",
+            "invalid_confirm": "Questo link di conferma non è più valido. Iscriviti di nuovo.",
+            "removed_title": "Dati rimossi",
+            "removed_msg": "I tuoi dati personali sono stati anonimizzati. Non riceverai più email da noi.",
+            "invalid_unsub": "Questo link di cancellazione non è più valido. Contatta privacy@adiuvai.com per assistenza.",
+            "invalid_title": "Link non valido o scaduto",
+            "btn": "Vai su adiuvai.com",
+        },
+        "es": {
+            "confirmed_title": "¡Estás confirmado!",
+            "confirmed_msg": "Tu correo ha sido verificado. Te avisaremos cuando adiuvAI esté listo.",
+            "invalid_confirm": "Este enlace de confirmación ya no es válido. Regístrate de nuevo.",
+            "removed_title": "Datos eliminados",
+            "removed_msg": "Tus datos personales han sido anonimizados. No recibirás más correos de nuestra parte.",
+            "invalid_unsub": "Este enlace de cancelación ya no es válido. Contacta privacy@adiuvai.com si necesitas ayuda.",
+            "invalid_title": "Enlace no válido o expirado",
+            "btn": "Ir a adiuvai.com",
+        },
+        "fr": {
+            "confirmed_title": "Vous êtes confirmé !",
+            "confirmed_msg": "Votre e‑mail a été vérifié. Nous vous préviendrons quand adiuvAI sera prêt.",
+            "invalid_confirm": "Ce lien de confirmation n'est plus valide. Veuillez vous inscrire à nouveau.",
+            "removed_title": "Données supprimées",
+            "removed_msg": "Vos données personnelles ont été anonymisées. Vous ne recevrez plus d'e‑mails de notre part.",
+            "invalid_unsub": "Ce lien de désinscription n'est plus valide. Contactez privacy@adiuvai.com pour obtenir de l'aide.",
+            "invalid_title": "Lien non valide ou expiré",
+            "btn": "Aller sur adiuvai.com",
+        },
+        "de": {
+            "confirmed_title": "Du bist bestätigt!",
+            "confirmed_msg": "Deine E‑Mail wurde verifiziert. Wir benachrichtigen dich, wenn adiuvAI bereit ist.",
+            "invalid_confirm": "Dieser Bestätigungslink ist nicht mehr gültig. Bitte melde dich erneut an.",
+            "removed_title": "Daten entfernt",
+            "removed_msg": "Deine persönlichen Daten wurden anonymisiert. Du wirst keine weiteren E‑Mails von uns erhalten.",
+            "invalid_unsub": "Dieser Abmeldelink ist nicht mehr gültig. Kontaktiere privacy@adiuvai.com für Hilfe.",
+            "invalid_title": "Ungültiger oder abgelaufener Link",
+            "btn": "Zu adiuvai.com",
+        },
+    }
+
+    t = _PAGE_I18N.get(lang, _PAGE_I18N["en"])
+    html_lang = lang if lang in _PAGE_I18N else "en"
+
+    if variant == "unsubscribe":
         if success:
-        title = "You’re confirmed!"
+            title = t["removed_title"]
-        message = "Your email has been verified. We’ll notify you when adiuvAI is ready."
+            message = t["removed_msg"]
             icon_bg = "rgba(251,200,129,0.12)"
             icon_border = "rgba(251,200,129,0.25)"
             icon_svg = '<svg viewBox="0 0 24 24" width="24" height="24" fill="none" stroke="#e5a94e" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>'
         else:
-        title = "Invalid or expired link"
+            title = t["invalid_title"]
-        message = "This confirmation link is no longer valid. Please sign up again."
+            message = t["invalid_unsub"]
+            icon_bg = "rgba(220,38,38,0.08)"
+            icon_border = "rgba(220,38,38,0.18)"
+            icon_svg = '<svg viewBox="0 0 24 24" width="24" height="24" fill="none" stroke="#dc2626" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>'
+    elif success:
+        title = t["confirmed_title"]
+        message = t["confirmed_msg"]
+        icon_bg = "rgba(251,200,129,0.12)"
+        icon_border = "rgba(251,200,129,0.25)"
+        icon_svg = '<svg viewBox="0 0 24 24" width="24" height="24" fill="none" stroke="#e5a94e" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>'
+    else:
+        title = t["invalid_title"]
+        message = t["invalid_confirm"]
         icon_bg = "rgba(220,38,38,0.08)"
         icon_border = "rgba(220,38,38,0.18)"
         icon_svg = '<svg viewBox="0 0 24 24" width="24" height="24" fill="none" stroke="#dc2626" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>'
 
+    btn_label = t["btn"]
+
     return f"""\
 <!DOCTYPE html>
-<html lang="en">
+<html lang="{html_lang}">
 <head>
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width,initial-scale=1">
@@ -199,7 +332,7 @@ def _result_page(*, success: bool) -> str:
     <div class="icon">{icon_svg}</div>
     <h1>{title}</h1>
     <p>{message}</p>
-    <a href="https://adiuvai.com" class="btn">Go to adiuvai.com</a>
+    <a href="https://adiuvai.com" class="btn">{btn_label}</a>
   </div>
 </body>
 </html>"""

app/schemas.py

@@ -1,12 +1,30 @@
+from typing import Literal
+
 from pydantic import BaseModel, EmailStr, Field
 
+SUPPORTED_LANGS = ("en", "it", "es", "fr", "de")
+
 
 class WaitlistRequest(BaseModel):
     email: EmailStr
+    lang: Literal["en", "it", "es", "fr", "de"] = "en"
     # Honeypot field — must be empty. Bots tend to fill hidden fields.
     website: str = Field(default="", max_length=0)
 
 
+_RESPONSE_MESSAGES: dict[str, str] = {
+    "en": "Check your inbox for a confirmation link!",
+    "it": "Controlla la tua casella email per il link di conferma!",
+    "es": "¡Revisa tu bandeja de entrada para el enlace de confirmación!",
+    "fr": "Vérifiez votre boîte de réception pour le lien de confirmation !",
+    "de": "Überprüfe deinen Posteingang für den Bestätigungslink!",
+}
+
+
 class WaitlistResponse(BaseModel):
     ok: bool = True
     message: str = "Check your inbox for a confirmation link!"
+
+    @classmethod
+    def for_lang(cls, lang: str = "en") -> "WaitlistResponse":
+        return cls(message=_RESPONSE_MESSAGES.get(lang, _RESPONSE_MESSAGES["en"]))

tests/test_waitlist.py

@@ -153,9 +153,9 @@ async def test_token_tampered():
 
 @pytest.mark.asyncio
 async def test_confirm_valid_token(client, db_session):
-    """GET /confirm with valid token marks email as confirmed."""
+    """GET /confirm with valid token marks email as confirmed and clears IP."""
     # Seed an unconfirmed entry
-    entry = WaitlistEntry(email="confirm@example.com", source="website")
+    entry = WaitlistEntry(email="confirm@example.com", source="website", ip_address="1.2.3.4")
     db_session.add(entry)
     await db_session.commit()
 
@@ -168,7 +168,9 @@ async def test_confirm_valid_token(client, db_session):
     result = await db_session.execute(
         select(WaitlistEntry).where(WaitlistEntry.email == "confirm@example.com")
     )
-    assert result.scalar_one().confirmed is True
+    confirmed_entry = result.scalar_one()
+    assert confirmed_entry.confirmed is True
+    assert confirmed_entry.ip_address is None  # IP cleared on confirm
 
 
 @pytest.mark.asyncio
@@ -224,3 +226,64 @@ async def test_signup_triggers_confirmation_email(client, db_session):
         call_args = mock_send.call_args
         assert call_args[0][0] == "brevo@example.com"
         assert "confirm" in call_args[0][1]
+
+
+# ── Unsubscribe / anonymize tests ────────────────────────────────────
+
+
+@pytest.mark.asyncio
+async def test_unsubscribe_anonymizes_entry(client, db_session):
+    """GET /unsubscribe with valid token anonymizes the entry."""
+    entry = WaitlistEntry(email="unsub@example.com", source="website", confirmed=True)
+    db_session.add(entry)
+    await db_session.commit()
+    entry_id = entry.id
+
+    token = generate_token("unsub@example.com")
+    resp = await client.get(f"/api/v1/waitlist/unsubscribe?token={token}")
+    assert resp.status_code == 200
+    assert "removed" in resp.text.lower() or "anonymized" in resp.text.lower()
+
+    # Verify anonymization
+    result = await db_session.execute(
+        select(WaitlistEntry).where(WaitlistEntry.id == entry_id)
+    )
+    anon = result.scalar_one()
+    assert anon.email == f"anon-{entry_id}@removed.invalid"
+    assert anon.ip_address is None
+    assert anon.consent_given_at is None
+    assert anon.anonymized_at is not None
+
+
+@pytest.mark.asyncio
+async def test_unsubscribe_invalid_token(client):
+    """GET /unsubscribe with invalid token returns 400."""
+    resp = await client.get("/api/v1/waitlist/unsubscribe?token=garbage")
+    assert resp.status_code == 400
+
+
+@pytest.mark.asyncio
+async def test_unsubscribe_already_gone(client):
+    """GET /unsubscribe for non-existent entry returns 200 (idempotent)."""
+    token = generate_token("gone@example.com")
+    resp = await client.get(f"/api/v1/waitlist/unsubscribe?token={token}")
+    assert resp.status_code == 200
+
+
+# ── Consent timestamp tests ──────────────────────────────────────────
+
+
+@pytest.mark.asyncio
+async def test_signup_records_consent_timestamp(client, db_session):
+    """New signup records consent_given_at."""
+    resp = await client.post(
+        "/api/v1/waitlist",
+        json={"email": "consent@example.com"},
+    )
+    assert resp.status_code == 200
+
+    result = await db_session.execute(
+        select(WaitlistEntry).where(WaitlistEntry.email == "consent@example.com")
+    )
+    entry = result.scalar_one()
+    assert entry.consent_given_at is not None