feat(docker): script d'entrypoint avec attente DB + migrations auto

Le script docker/entrypoint.sh :
- Attend PostgreSQL (netcat sur host:port extrait de DATABASE_URL)
- Cree le dossier /app/data si SQLite
- Applique les migrations via prisma migrate deploy
- Execute le seed si RUN_SEED=true (non bloquant)
- Demarre server.js (mode standalone Next)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docker/entrypoint.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+# ---------------------------------------------------------------
+# Entrypoint IPAM
+# ---------------------------------------------------------------
+# 1. Attend la base de données si PostgreSQL
+# 2. Applique les migrations Prisma (prisma migrate deploy)
+# 3. Optionnel : seed initial si RUN_SEED=true
+# 4. Démarre le serveur Next.js (mode standalone)
+# ---------------------------------------------------------------
+set -eu
+
+log() { printf '\033[36m[entrypoint]\033[0m %s\n' "$*"; }
+err() { printf '\033[31m[entrypoint]\033[0m %s\n' "$*" >&2; }
+
+# --- 1. Attente DB (PostgreSQL uniquement) ------------------------
+if [ "${DATABASE_PROVIDER:-sqlite}" = "postgresql" ]; then
+  if [ -z "${DATABASE_URL:-}" ]; then
+    err "DATABASE_URL requis pour PostgreSQL"
+    exit 1
+  fi
+
+  log "Attente de PostgreSQL…"
+  # Extraction host:port de l'URL (format postgresql://user:pass@host:port/db?…)
+  HOST_PORT=$(printf '%s' "$DATABASE_URL" | sed -E 's#.*@([^/?]+).*#\1#')
+  HOST=$(printf '%s' "$HOST_PORT" | cut -d: -f1)
+  PORT=$(printf '%s' "$HOST_PORT" | cut -d: -f2)
+  [ "$PORT" = "$HOST" ] && PORT=5432
+
+  RETRIES=30
+  while ! nc -z "$HOST" "$PORT" 2>/dev/null; do
+    RETRIES=$((RETRIES - 1))
+    if [ "$RETRIES" -le 0 ]; then
+      err "PostgreSQL injoignable après 30 tentatives ($HOST:$PORT)"
+      exit 1
+    fi
+    sleep 1
+  done
+  log "PostgreSQL disponible ($HOST:$PORT)"
+fi
+
+# --- 2. Crée le dossier data pour SQLite --------------------------
+if [ "${DATABASE_PROVIDER:-sqlite}" = "sqlite" ]; then
+  mkdir -p /app/data
+fi
+
+# --- 3. Migrations Prisma -----------------------------------------
+log "Application des migrations Prisma…"
+npx prisma migrate deploy
+
+# --- 4. Seed optionnel --------------------------------------------
+if [ "${RUN_SEED:-false}" = "true" ]; then
+  log "Exécution du seed initial…"
+  npx tsx prisma/seed.ts || err "Seed échoué (non bloquant)"
+fi
+
+# --- 5. Lancement du serveur --------------------------------------
+log "Démarrage du serveur Next.js sur :${PORT:-3000}"
+exec node server.js