Update copy to post-July-2026 reality and notify on signups

- Rewrite copy from "this will happen" to "this has happened": direct
  registration closed 1 July 2026, transition ends 30 June 2028
- Fix timeline (30 June 2028, not 1 July), update FAQ + JSON-LD, add FAQ
  on registering new domains now
- Send signup notification mail to henrik@i80.dk via smtp.i80.dk, with
  credentials from Consul KV
- Fix CI health check URL (punktfri.dk)

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

app.py

@@ -1,6 +1,9 @@
 import os
 import logging
+import smtplib
 import sqlite3
+import threading
+from email.message import EmailMessage
 from functools import wraps
 
 from flask import Flask, render_template, request, redirect, url_for, g, Response, send_from_directory
@@ -10,6 +13,12 @@ LOG_FILE = os.environ.get("LOG_FILE", "signups.log")
 ADMIN_USER = os.environ.get("ADMIN_USER", "admin")
 ADMIN_PASS = os.environ.get("ADMIN_PASS", "punktfri2024")
 PORT = int(os.environ.get("PORT", 5000))
+NOTIFY_EMAIL = os.environ.get("NOTIFY_EMAIL", "henrik@i80.dk")
+SMTP_HOST = os.environ.get("SMTP_HOST", "")
+SMTP_PORT = int(os.environ.get("SMTP_PORT", 587))
+SMTP_USER = os.environ.get("SMTP_USER", "")
+SMTP_PASS = os.environ.get("SMTP_PASS", "")
+SMTP_FROM = os.environ.get("SMTP_FROM", "") or SMTP_USER
 
 app = Flask(__name__)
 
@@ -20,6 +29,41 @@ _fh.setFormatter(logging.Formatter("%(asctime)s %(message)s"))
 signup_logger.addHandler(_fh)
 
 
+def build_notification(navn, email, domaener, egne_ns, kommentar):
+    msg = EmailMessage()
+    msg["Subject"] = f"PunktFri: ny tilmelding fra {navn}"
+    msg["From"] = SMTP_FROM
+    msg["To"] = NOTIFY_EMAIL
+    msg["Reply-To"] = email
+    msg.set_content(
+        f"Ny interessetilkendegivelse på punktfri.dk\n\n"
+        f"Navn:            {navn}\n"
+        f"E-mail:          {email}\n"
+        f"Antal domæner:   {domaener}\n"
+        f"Egne navneservere: {egne_ns}\n"
+        f"Kommentar:\n{kommentar or '(ingen)'}\n"
+    )
+    return msg
+
+
+def _send(msg):
+    try:
+        with smtplib.SMTP(SMTP_HOST, SMTP_PORT, timeout=15) as s:
+            s.starttls()
+            if SMTP_USER:
+                s.login(SMTP_USER, SMTP_PASS)
+            s.send_message(msg)
+    except Exception:
+        app.logger.exception("Kunne ikke sende tilmeldingsnotifikation til %s", NOTIFY_EMAIL)
+
+
+def notify_signup(**fields):
+    if not SMTP_HOST:
+        app.logger.warning("SMTP_HOST ikke sat — springer notifikation over")
+        return
+    threading.Thread(target=_send, args=(build_notification(**fields),), daemon=True).start()
+
+
 def get_db():
     db = getattr(g, "_database", None)
     if db is None:
@@ -105,6 +149,10 @@ def index():
                         f"SIGNUP navn={navn!r} email={email!r} domaener={domaener} "
                         f"egne_ns={egne_ns} kommentar={kommentar!r}"
                     )
+                    notify_signup(
+                        navn=navn, email=email, domaener=domaener,
+                        egne_ns=egne_ns, kommentar=kommentar,
+                    )
                     return redirect(url_for("tak"))
 
     return render_template("index.html", error=error)