feat: complete v0.2 source and sync management

scripts/backup.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Creates a consistent SQLite backup through the running web container, then archives Hub uploads.
+root_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$root_dir"
+stamp="$(date +%Y%m%d-%H%M%S)"
+backup_dir="data/backups/$stamp"
+mkdir -p "$backup_dir"
+
+docker compose exec -T -e BACKUP_PATH="/app/data/backups/$stamp/hub.db" web node -e '
+  const Database = require("better-sqlite3");
+  const db = new Database(process.env.DATABASE_PATH);
+  db.backup(process.env.BACKUP_PATH).then(() => db.close()).catch((error) => { console.error(error); process.exit(1); });
+'
+
+tar -czf "$backup_dir/uploads.tar.gz" -C public uploads
+printf 'Created backup: %s\n' "$backup_dir"