Initial commit: secondary school grade archive system.

Add FastAPI/React app with Docker deployment, Ubuntu one-click install, and docs for junior/senior high score tracking and mistake bank.

Co-authored-by: Cursor <cursoragent@cursor.com>

deploy/backup.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+#
+# 备份 PostgreSQL 与 uploads 目录
+# 版权所有 (c) 马建军
+#
+set -euo pipefail
+
+INSTALL_DIR="${INSTALL_DIR:-/opt/secondary-school-grade-archive}"
+BACKUP_DIR="${BACKUP_DIR:-${INSTALL_DIR}/backups}"
+TIMESTAMP=$(date +%Y%m%d_%H%M%S)
+
+cd "${INSTALL_DIR}"
+mkdir -p "${BACKUP_DIR}"
+
+echo "[INFO] 备份数据库…"
+docker compose --env-file .env exec -T db \
+  pg_dump -U "${POSTGRES_USER:-postgres}" "${POSTGRES_DB:-student_archive}" \
+  > "${BACKUP_DIR}/db_${TIMESTAMP}.sql"
+
+echo "[INFO] 备份 uploads…"
+tar -czf "${BACKUP_DIR}/uploads_${TIMESTAMP}.tar.gz" -C "${INSTALL_DIR}" uploads/
+
+echo "[INFO] 备份完成:"
+echo "  ${BACKUP_DIR}/db_${TIMESTAMP}.sql"
+echo "  ${BACKUP_DIR}/uploads_${TIMESTAMP}.tar.gz"