feat(backup): добавить таблицу для резервных копий и функции для работы с ними

backend/src/db/index.ts

@@ -1,4 +1,6 @@
 import Database from "better-sqlite3"
+import { existsSync, readFileSync } from "node:fs"
+import path from "node:path"
 
 type SqliteHandle = InstanceType<typeof Database>
 import { drizzle } from "drizzle-orm/better-sqlite3"
@@ -391,6 +393,19 @@ CREATE TABLE IF NOT EXISTS backup_schedule_settings (
   updated_at TEXT NOT NULL DEFAULT (datetime('now'))
 );
 
+CREATE TABLE IF NOT EXISTS backup_entries (
+  id TEXT PRIMARY KEY,
+  server_id TEXT NOT NULL,
+  server_name TEXT NOT NULL,
+  filename TEXT NOT NULL,
+  size_bytes INTEGER NOT NULL,
+  kind TEXT NOT NULL DEFAULT 'manual',
+  notes TEXT,
+  created_at TEXT NOT NULL
+);
+CREATE INDEX IF NOT EXISTS idx_backup_entries_server_created ON backup_entries(server_id, created_at);
+CREATE UNIQUE INDEX IF NOT EXISTS idx_backup_entries_filename ON backup_entries(filename);
+
 CREATE TABLE IF NOT EXISTS alert_rules (
   id TEXT PRIMARY KEY,
   name TEXT NOT NULL,
@@ -669,6 +684,41 @@ SELECT 1, NULL
 WHERE NOT EXISTS (SELECT 1 FROM alert_engine_cursor WHERE id = 1);
 `)
 
+const backupEntryCount = sqlite.prepare(`SELECT COUNT(*) AS c FROM backup_entries`).get() as { c: number }
+if (backupEntryCount.c === 0) {
+  const legacyIndexPath = path.resolve(process.cwd(), "storage", "backups", "index.json")
+  if (existsSync(legacyIndexPath)) {
+    try {
+      const parsed = JSON.parse(readFileSync(legacyIndexPath, "utf8")) as unknown
+      if (Array.isArray(parsed)) {
+        const insert = sqlite.prepare(`
+          INSERT OR IGNORE INTO backup_entries (id, server_id, server_name, filename, size_bytes, kind, notes, created_at)
+          VALUES (@id, @serverId, @serverName, @filename, @sizeBytes, @kind, @notes, @createdAt)
+        `)
+        for (const row of parsed) {
+          if (!row || typeof row !== "object") continue
+          const item = row as Record<string, unknown>
+          const id = String(item.id ?? "").trim()
+          const filename = String(item.filename ?? "").trim()
+          if (!id || !filename) continue
+          insert.run({
+            id,
+            serverId: String(item.serverId ?? ""),
+            serverName: String(item.serverName ?? ""),
+            filename,
+            sizeBytes: Number(item.sizeBytes ?? 0) || 0,
+            kind: item.kind === "auto" ? "auto" : "manual",
+            notes: item.notes == null ? null : String(item.notes),
+            createdAt: String(item.createdAt ?? new Date().toISOString()),
+          })
+        }
+      }
+    } catch {
+      /* legacy index.json не читается — пропускаем */
+    }
+  }
+}
+
 export const db = drizzle(sqlite, { schema })
 
 /** Прямой доступ к better-sqlite3 для сложных read-only запросов (напр. /api/alerts). */

backend/src/db/schema.ts

@@ -340,6 +340,17 @@ export const backupScheduleSettings = sqliteTable("backup_schedule_settings", {
   updatedAt:      text("updated_at").notNull().default(sql`(datetime('now'))`),
 })
 
+export const backupEntries = sqliteTable("backup_entries", {
+  id:         text("id").primaryKey(),
+  serverId:   text("server_id").notNull(),
+  serverName: text("server_name").notNull(),
+  filename:   text("filename").notNull(),
+  sizeBytes:  integer("size_bytes").notNull(),
+  kind:       text("kind", { enum: ["manual", "auto"] }).notNull().default("manual"),
+  notes:      text("notes"),
+  createdAt:  text("created_at").notNull(),
+})
+
 /** Группы правил: ANY = хотя бы одно; ALL = все одновременно в окне тика. */
 export const alertGroups = sqliteTable("alert_groups", {
   id:                text("id").primaryKey(),
@@ -562,6 +573,7 @@ export type AcmeSettingsRow = typeof acmeSettings.$inferSelect
 export type CertificateIssueJobRow = typeof certificateIssueJobs.$inferSelect
 export type CertificateRenewSettingsRow = typeof certificateRenewSettings.$inferSelect
 export type BackupScheduleSettingsRow = typeof backupScheduleSettings.$inferSelect
+export type BackupEntryRow = typeof backupEntries.$inferSelect
 export type AlertGroupRow = typeof alertGroups.$inferSelect
 export type AlertRuleRow = typeof alertRules.$inferSelect
 export type AlertRuleTargetRow = typeof alertRuleTargets.$inferSelect