🚀 Daily is now Bank agnostic

- Separated createDir into a new file fs.ts
- Moved mapTransactions into Bank interface
- Take interval as input into importTransactions

src/fs.ts

@@ -0,0 +1,13 @@
+import * as fs from "node:fs"
+import logger from "./logger"
+
+export function createDirsIfMissing(...directories: string[]): void {
+  directories.forEach(createDirIfMissing)
+}
+
+export function createDirIfMissing(directory: string): void {
+  if (!fs.existsSync(directory)) {
+    logger.info(`Missing '${directory}', creating...`)
+    fs.mkdirSync(directory, { recursive: true })
+  }
+}