Fix #4-#8: mail virtual domains, DNS verified, reseller isolation, missing DB tables

#4: Postfix virtual mailbox config (virtual_mailbox_domains/maps, vmail user, maildir
    at /var/mail/vhosts/%d/%n). Dovecot SQL backend pointed at novacpx.email_accounts
    with SHA512-CRYPT passdb and per-domain Maildir userdb.

#5: BIND9 confirmed working — dig @localhost resolves testdomain1.com correctly.

#6: Certbot 2.9.0 confirmed installed; domains.document_root wired; infrastructure
    ready for live domain issuance (testdomain1.com not publicly resolvable so
    dry-run expected to fail).

#7: Fixed all broken user-panel API queries — missing tables (databases, ftp_accounts,
    ssl_certs, cron_jobs, php_configs, notifications) created; `databases` reserved-word
    backtick-quoted across DatabaseManager+endpoints; domains.php is_primary→type=main,
    doc_root→document_root column fixes; DNSManager::createZone call signature fixed;
    stats/account auto-resolves account_id for user role.

#8: assert_account_access() helper added to api/index.php; reseller ownership check
    wired into email, ftp, databases, domains, dns, ssl endpoints.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tools/nova-github.sh

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+# nova-github.sh — Quick GitHub push for NovaCPX repo
+# Usage: bash nova-github.sh "commit message"   (add all, commit, push)
+#        bash nova-github.sh --status            (git status + diff --stat)
+#        bash nova-github.sh --log               (last 10 commits)
+#
+# Requires: git, GitHub PAT already set on remote (see CLAUDE.md)
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(dirname "$SCRIPT_DIR")"
+
+GREEN='\033[0;32m'; RED='\033[0;31m'; YELLOW='\033[1;33m'; NC='\033[0m'
+
+cd "$REPO_ROOT" || { echo "Cannot cd to repo root: $REPO_ROOT"; exit 1; }
+
+case "${1:-}" in
+  --status)
+    git status
+    echo ""
+    git diff --stat
+    ;;
+  --log)
+    git log --oneline -10
+    ;;
+  "")
+    echo "Usage: $0 \"commit message\""
+    echo "       $0 --status"
+    echo "       $0 --log"
+    exit 1
+    ;;
+  *)
+    MSG="$*"
+    # PHP syntax check before commit
+    echo "Running PHP syntax check..."
+    if ! bash "$SCRIPT_DIR/nova-phpcheck.sh" > /dev/null 2>&1; then
+      echo -e "${RED}[✗]${NC} PHP syntax errors found. Run: bash tools/nova-phpcheck.sh --fix"
+      exit 1
+    fi
+    echo -e "${GREEN}[✓]${NC} PHP OK"
+
+    git add -A
+    git status --short
+    echo ""
+    git commit -m "$MSG
+
+Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>"
+    git push origin main
+    echo ""
+    echo -e "${GREEN}[✓]${NC} Pushed. Auto-deploy will trigger within ~1 min."
+    ;;
+esac