new raceday and backup

server.js

@@ -5,6 +5,7 @@ const { spawn } = require("child_process");
 const express = require("express");
 const Database = require("better-sqlite3");
 const publicTrainingProfile = require("./server/public_training_profile");
+const { createBackupService } = require("./server/backup_service");
 
 const PORT = Number(process.env.PORT || 8081);
 const HOST = process.env.HOST || "0.0.0.0";
@@ -30,6 +31,7 @@ db.pragma("journal_mode = WAL");
 db.pragma("foreign_keys = ON");
 
 initSchema();
+const backupService = createBackupService({ db, dataDir: DB_DIR });
 const appVersion = {
   revision: 1,
   updatedAt: new Date().toISOString(),
@@ -99,6 +101,28 @@ app.get("/api/app-version", (_req, res) => {
   res.json(appVersion);
 });
 
+app.get("/api/backups", (_req, res) => {
+  try {
+    res.setHeader("Cache-Control", "no-store");
+    res.json({ backups: backupService.listBackups() });
+  } catch (error) {
+    res.status(500).json({ error: error instanceof Error ? error.message : String(error) });
+  }
+});
+
+app.post("/api/backups", async (req, res) => {
+  try {
+    const backup = await backupService.createBackup({
+      reason: req.body?.reason || "manual",
+      sessionId: req.body?.sessionId || "",
+      eventId: req.body?.eventId || "",
+    });
+    res.status(201).json({ ok: true, backup });
+  } catch (error) {
+    res.status(500).json({ error: error instanceof Error ? error.message : String(error) });
+  }
+});
+
 app.get("/api/ammc/config", (_req, res) => {
   res.json({
     config: ammcState.config,