Initial commit — Grow baby tracker

Next.js 16 App Router, Prisma + PostgreSQL, NextAuth v5 JWT.

Features: dashboard quick-log, timeline, growth charts (WHO percentiles),
stats, journal/notes, doctor notes, milestones, vaccinations, settings,
superadmin panel. Mobile-first with sidebar nav + bottom nav + quick-add FAB.
Dark mode, PWA push notifications, multi-family invite system.

Docker: multi-stage Dockerfile + docker-compose with postgres service.

src/lib/email.ts

@@ -0,0 +1,78 @@
+import { prisma } from "./prisma";
+
+interface EmailPayload {
+  to: string;
+  subject: string;
+  html: string;
+  text?: string;
+}
+
+async function getConfig(key: string): Promise<string> {
+  const row = await prisma.systemConfig.findUnique({ where: { key } });
+  return row?.value ?? process.env[key.toUpperCase()] ?? "";
+}
+
+async function sendMailgun(payload: EmailPayload): Promise<void> {
+  const apiKey = await getConfig("mailgun_api_key");
+  const domain = await getConfig("mailgun_domain");
+  const from = await getConfig("mailgun_from");
+  if (!apiKey || !domain) throw new Error("Mailgun non configuré");
+
+  const formData = new FormData();
+  formData.append("from", from || `Grow <noreply@${domain}>`);
+  formData.append("to", payload.to);
+  formData.append("subject", payload.subject);
+  formData.append("html", payload.html);
+  if (payload.text) formData.append("text", payload.text);
+
+  const res = await fetch(`https://api.mailgun.net/v3/${domain}/messages`, {
+    method: "POST",
+    headers: { Authorization: `Basic ${Buffer.from(`api:${apiKey}`).toString("base64")}` },
+    body: formData,
+  });
+  if (!res.ok) {
+    const err = await res.text();
+    throw new Error(`Mailgun error: ${err}`);
+  }
+}
+
+async function sendSmtp(payload: EmailPayload): Promise<void> {
+  const host = await getConfig("smtp_host");
+  const port = parseInt(await getConfig("smtp_port") || "587");
+  const user = await getConfig("smtp_user");
+  const pass = await getConfig("smtp_pass");
+  const from = await getConfig("smtp_from");
+  if (!host) throw new Error("SMTP non configuré");
+
+  const nodemailer = await import("nodemailer");
+  const transport = nodemailer.default.createTransport({ host, port, auth: { user, pass } });
+  await transport.sendMail({ from, to: payload.to, subject: payload.subject, html: payload.html, text: payload.text });
+}
+
+export async function sendEmail(payload: EmailPayload): Promise<void> {
+  const provider = await getConfig("email_provider");
+  if (provider === "smtp") return sendSmtp(payload);
+  if (provider === "mailgun") return sendMailgun(payload);
+  // Fallback: check env vars directly
+  if (process.env.MAILGUN_API_KEY) return sendMailgun(payload);
+  if (process.env.SMTP_HOST) return sendSmtp(payload);
+  throw new Error("Aucun service email configuré");
+}
+
+export function resetPasswordEmail(name: string, resetUrl: string): { html: string; text: string } {
+  return {
+    text: `Bonjour ${name},\n\nCliquez sur ce lien pour réinitialiser votre mot de passe :\n${resetUrl}\n\nLien valide 1 heure.\n\nGrow`,
+    html: `
+      <div style="font-family:sans-serif;max-width:480px;margin:0 auto">
+        <h2 style="color:#4f46e5">Grow — Réinitialisation du mot de passe</h2>
+        <p>Bonjour ${name},</p>
+        <p>Cliquez sur le bouton ci-dessous pour réinitialiser votre mot de passe. Le lien est valide pendant <strong>1 heure</strong>.</p>
+        <a href="${resetUrl}" style="display:inline-block;margin:16px 0;padding:12px 24px;background:#4f46e5;color:#fff;border-radius:8px;text-decoration:none;font-weight:600">
+          Réinitialiser mon mot de passe
+        </a>
+        <p style="color:#64748b;font-size:13px">Si vous n'avez pas demandé cette réinitialisation, ignorez cet email.</p>
+        <p style="color:#64748b;font-size:13px">Ou copiez ce lien : ${resetUrl}</p>
+      </div>
+    `,
+  };
+}