fix: seeder namespace, Node 22 auto-upgrade in install.sh, hasTable migration guards

install.sh

@@ -225,7 +225,7 @@ success "Migrations complete."
 
 # ── Seed Default Roles ────────────────────────────────────────────────────────
 step "Seeding default roles..."
-$PHP_BIN artisan db:seed --class="Pterodactyl\\Addons\\AdvancedAdmin\\Database\\Seeders\\DefaultRolesSeeder" --force \
+$PHP_BIN artisan db:seed --class="Database\\Seeders\\DefaultRolesSeeder" --force \
     || warn "Seeder failed or already run — skipping."
 success "Seeding complete."
 
@@ -239,9 +239,20 @@ step "Building frontend assets (this may take a few minutes)..."
 command -v yarn >/dev/null 2>&1 || error "yarn is not installed. Install with: npm install -g yarn"
 
 cd "$PANEL_DIR"
-yarn install --frozen-lockfile 2>&1 | tail -5
+
+# Ensure Node >=22 (panel requires it; upgrade via NodeSource if needed)
+NODE_MAJ="$(node --version 2>/dev/null | sed 's/v//;s/\..*//' || echo 0)"
+if [[ "${NODE_MAJ}" -lt 22 ]]; then
+    info "Node ${NODE_MAJ} is too old (need >=22). Upgrading via NodeSource..."
+    curl -fsSL https://deb.nodesource.com/setup_22.x | bash - >/dev/null 2>&1 \
+        && DEBIAN_FRONTEND=noninteractive apt-get install -y nodejs -q >/dev/null 2>&1 \
+        || warn "Node upgrade failed — build may fail. Manually install Node 22."
+    info "Node version now: $(node --version 2>/dev/null || echo unknown)"
+fi
+
 export NODE_OPTIONS="${NODE_OPTIONS:---openssl-legacy-provider}"
-yarn build:production 2>&1 | tail -20
+yarn install --frozen-lockfile 2>&1 | tail -5
+yarn build:production 2>&1 | tail -30
 success "Frontend built."
 
 # ── Clear Caches ──────────────────────────────────────────────────────────────