Implementa o MVP do Adaptador de Planilhas no Elo Pro.

O módulo usa a identidade Supabase, isola cada workspace e registra storage, TTL, runner e biblioteca XLSX como decisões ainda abertas.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/infra/storage/memory.ts

@@ -0,0 +1,34 @@
+import { AdapterError } from "@/domain/spreadsheet-adapter/errors";
+import { assertStorageKey } from "@/domain/spreadsheet-adapter/filenames";
+
+export interface ObjectStorage {
+  put(key: string, body: Buffer): Promise<void>;
+  get(key: string): Promise<Buffer>;
+  delete(key: string): Promise<void>;
+  list(prefix: string): Promise<string[]>;
+}
+
+export class MemoryStorage implements ObjectStorage {
+  private readonly objects = new Map<string, Buffer>();
+
+  async put(key: string, body: Buffer): Promise<void> {
+    assertStorageKey(key);
+    this.objects.set(key, Buffer.from(body));
+  }
+
+  async get(key: string): Promise<Buffer> {
+    assertStorageKey(key);
+    const value = this.objects.get(key);
+    if (!value) throw new AdapterError("NOT_FOUND", "Arquivo não encontrado.", 404);
+    return Buffer.from(value);
+  }
+
+  async delete(key: string): Promise<void> {
+    assertStorageKey(key);
+    this.objects.delete(key);
+  }
+
+  async list(prefix: string): Promise<string[]> {
+    return [...this.objects.keys()].filter((key) => key.startsWith(prefix));
+  }
+}