feat(db): перевести хранилище с SQLite на PostgreSQL

При старте backend накатывает схему PostgreSQL 18 и, если база пустая, один раз импортирует mikrotik.db с тома. Повторный старт не копирует данные. Бэкап в UI идёт через pg_dump.

Co-authored-by: Cursor <[email protected]>

backend/src/scripts/migrate-sqlite-to-pg.ts

@@ -0,0 +1,20 @@
+import { env } from "../config.js"
+import { closePool, pool } from "../db/index.js"
+import { applySqlMigrations } from "../db/migrate.js"
+import { ensurePartitionsAround } from "../db/partitions.js"
+import { importSqliteToPostgres } from "../db/sqlite-import.js"
+
+const sqlitePath = process.argv.find((a) => a.startsWith("--sqlite="))?.slice(9) ?? env.DATABASE_PATH
+const dryRun = process.argv.includes("--dry-run")
+const fullHistory = process.argv.includes("--full-history")
+const strict = process.argv.includes("--strict") || !dryRun
+
+await applySqlMigrations(pool)
+await ensurePartitionsAround(pool)
+const report = await importSqliteToPostgres(pool, sqlitePath, { dryRun, strict, fullHistory })
+console.log(JSON.stringify(report, null, 2))
+if (!dryRun && report.rejects.length > 0 && strict) {
+  await closePool()
+  process.exit(1)
+}
+await closePool()