feat: initial Regnum project structure (Vue3 + Phaser3 + Socket.io)

server/src/game/cards.js

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+// Deck de base de Regnum
+// Types: Royaume (points fixes), Armée (attaque), Commerce (multiplicateur), Magie (effets spéciaux)
+
+const BASE_DECK = [
+  // === ROYAUME ===
+  { id: 'r1', name: 'Village', type: 'Royaume', points: 2, effect: null },
+  { id: 'r2', name: 'Château', type: 'Royaume', points: 5, effect: null },
+  { id: 'r3', name: 'Cathédrale', type: 'Royaume', points: 4, effect: null },
+  { id: 'r4', name: 'Forteresse', type: 'Royaume', points: 3, effect: null },
+  { id: 'r5', name: 'Palais Royal', type: 'Royaume', points: 7, effect: null },
+
+  // === ARMÉE ===
+  { id: 'a1', name: 'Chevaliers', type: 'Armée', points: 3, effect: 'steal:1' },
+  { id: 'a2', name: 'Archers', type: 'Armée', points: 2, effect: 'steal:1' },
+  { id: 'a3', name: 'Catapulte', type: 'Armée', points: 1, effect: 'steal:2' },
+  { id: 'a4', name: 'Légion', type: 'Armée', points: 4, effect: 'steal:2' },
+
+  // === COMMERCE ===
+  { id: 'c1', name: 'Marché', type: 'Commerce', points: 2, effect: 'bonus:1' },
+  { id: 'c2', name: 'Port', type: 'Commerce', points: 3, effect: 'bonus:2' },
+  { id: 'c3', name: 'Route de soie', type: 'Commerce', points: 5, effect: 'bonus:1' },
+
+  // === MAGIE ===
+  { id: 'm1', name: 'Oracle', type: 'Magie', points: 1, effect: 'draw:1' },
+  { id: 'm2', name: 'Enchanteur', type: 'Magie', points: 2, effect: 'protect' },
+  { id: 'm3', name: 'Alchimiste', type: 'Magie', points: 3, effect: 'double' },
+]
+
+function shuffle(arr) {
+  const a = [...arr]
+  for (let i = a.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    [a[i], a[j]] = [a[j], a[i]]
+  }
+  return a
+}
+
+function createDeck() {
+  return shuffle([...BASE_DECK, ...BASE_DECK]) // 2 exemplaires
+}
+
+function dealHands(playerCount, handSize = 5) {
+  const deck = createDeck()
+  const hands = []
+  for (let i = 0; i < playerCount; i++) {
+    hands.push(deck.splice(0, handSize))
+  }
+  return { hands, remaining: deck }
+}
+
+module.exports = { createDeck, dealHands, BASE_DECK }