Aggiunge lo script di backup completo per il disaster recovery

Scarica schema e dati del database (public e auth) e i file dei bucket
storage, così si può ripartire se si perdono Supabase o Vercel. I dati
generati restano fuori da git perché contengono dati personali reali.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

backups/download-storage.mjs

@@ -0,0 +1,49 @@
+// Scarica tutti i file dei bucket Supabase Storage per il backup di disaster recovery.
+// Uso: node backups/download-storage.mjs [cartella-output]
+import { createClient } from "@supabase/supabase-js";
+import { mkdir, writeFile, readFile } from "node:fs/promises";
+import { dirname, join } from "node:path";
+
+for (const line of (await readFile(new URL("../.env", import.meta.url), "utf8")).split("\n")) {
+  const match = /^([\w.]+)=(.*)$/.exec(line.trim());
+  if (match) process.env[match[1]] ??= match[2].replace(/^["']|["']$/g, "");
+}
+
+const BUCKETS = ["avatar-giocatori", "profili-giocatore"];
+const OUT_DIR = process.argv[2] ?? new URL("./storage/", import.meta.url).pathname;
+
+const supabase = createClient(process.env.VITE_SUPABASE_URL, process.env.SUPABASE_SERVICE_ROLE_KEY);
+
+async function listAll(bucket, prefix = "") {
+  const { data, error } = await supabase.storage.from(bucket).list(prefix, { limit: 1000 });
+  if (error) throw error;
+  let files = [];
+  for (const entry of data) {
+    const path = prefix ? `${prefix}/${entry.name}` : entry.name;
+    if (entry.id === null) {
+      // è una "cartella" (nessun id): ricorri
+      files = files.concat(await listAll(bucket, path));
+    } else {
+      files.push(path);
+    }
+  }
+  return files;
+}
+
+for (const bucket of BUCKETS) {
+  console.log(`Bucket: ${bucket}`);
+  const files = await listAll(bucket);
+  console.log(`  ${files.length} file trovati`);
+  for (const path of files) {
+    const { data, error } = await supabase.storage.from(bucket).download(path);
+    if (error) {
+      console.error(`  ERRORE ${path}:`, error.message);
+      continue;
+    }
+    const destPath = join(OUT_DIR, bucket, path);
+    await mkdir(dirname(destPath), { recursive: true });
+    await writeFile(destPath, Buffer.from(await data.arrayBuffer()));
+    console.log(`  scaricato: ${bucket}/${path}`);
+  }
+}
+console.log("Fatto.");