feat: /mijn command — DM-only stats/PIN

Voegt /mijn command toe dat in DM:
- Player stats toont (matches gewonnen/verloren)
- Totale uren toont
- PIN, niveau, positie toont
- Link naar profielpagina

/beschikbaar blijft redirect naar web.

bot.js

@@ -197,14 +197,75 @@ bot.onText(/\/start(@padel_nl_bot)?/, async (msg) => {
   sendMsg(chatId, 'Hallo ' + name + '! 🏓\n\nWat is je volledige naam?');
 });
 
-// /beschikbaar, /mijn — redirect naar web
-bot.onText(/\/beschikbaar(@padel_nl_bot)?|\/mijn(@padel_nl_bot)?/, async (msg) => {
+// /beschikbaar — redirect naar web
+bot.onText(/\/beschikbaar(@padel_nl_bot)?/, async (msg) => {
   const chatId = msg.chat.id;
-  sendMsg(chatId, '🌐 **Ga naar de webpagina** voor beschikbaarheid en profiel:\nhttps://padel.iamdoingthings.com\n\nLog in met je PIN (die je kreeg bij registratie).',
+  sendMsg(chatId, '🌐 **Ga naar de webpagina** voor beschikbaarheid:\nhttps://padel.iamdoingthings.com',
     { parse_mode: 'Markdown', disable_web_page_preview: true }
   );
 });
 
+// /mijn — DM-only stats + PIN
+bot.onText(/\/mijn(@padel_nl_bot)?/, async (msg) => {
+  const chatId = msg.chat.id;
+  if (!isDM(msg)) {
+    return sendMsg(chatId, '📊 **Jouw stats** zijn alleen in DM zichtbaar.\n\nStuur /mijn naar [@padel_nl_bot](https://t.me/padel_nl_bot)',
+      { parse_mode: 'Markdown' }
+    );
+  }
+  try {
+    const players = await api('/players');
+    if (!Array.isArray(players)) throw new Error('Invalid players response');
+    const player = players.find(p => p.telegram_id == chatId);
+    if (!player) return sendMsg(chatId, 'Je bent niet geregistreerd. Stuur /start om te beginnen.');
+
+    const matches = await api('/matches');
+    if (!Array.isArray(matches)) throw new Error('Invalid matches response');
+
+    const playerMatches = matches.filter(m =>
+      m.players && m.players.some(pid => pid == player.id) &&
+      (m.status === 'completed' || m.status === 'confirmed')
+    );
+
+    const won = playerMatches.filter(m => {
+      if (!m.score || !m.score.winner) return false;
+      return m.score.winner === 1 ?
+        (m.score.team1 || []).some(pid => pid == player.id) :
+        (m.score.team2 || []).some(pid => pid == player.id);
+    }).length;
+    const played = playerMatches.length;
+    const lost = played - won;
+
+    const sessions = await api('/sessions') || [];
+    const playerSessions = (sessions || []).filter(s =>
+      s.players && s.players.some(pid => pid == player.id || pid === player.id)
+    );
+    const totalHours = playerSessions.reduce((sum, s) => {
+      const start = s.start || (s.data || {}).start || "00:00";
+      const end = s.end || (s.data || {}).end || "00:00";
+      const [sh, sm] = start.split(":").map(Number);
+      const [eh, em] = end.split(":").map(Number);
+      return sum + ((eh + em / 60) - (sh + sm / 60));
+    }, 0);
+
+    const level = player.level || 'onbekend';
+    const position = player.position || 'onbekend';
+
+    let msg = '📊 **Jouw Statistieken**\n\n';
+    msg += '👤 ' + player.name + '\n';
+    msg += '🎯 Niveau: ' + level + ' | Positie: ' + position + '\n';
+    msg += '🔑 PIN: `' + player.pin + '`\n\n';
+    msg += '🎾 Wedstrijden: ' + played + ' (' + won + '⚡ win / ' + lost + '❌ verlies)\n';
+    msg += '⏱️ Totaal uren: ' + Math.round(totalHours * 10) / 10 + 'h\n';
+    msg += '\n[Wijzig profiel](https://padel.iamdoingthings.com) — je PIN is je inlogcode.';
+
+    sendMsg(chatId, msg, { parse_mode: 'Markdown' });
+  } catch (e) {
+    logError('/mijn error:', e.message);
+    sendMsg(chatId, '❌ Kon stats niet laden. Probeer later opnieuw.');
+  }
+});
+
 // /matches — openstaande matches
 bot.onText(/\/matches(@padel_nl_bot)?/, async (msg) => {
   const chatId = msg.chat.id;