feat: fix transcript saving tests

src/lib/transcript-storage.test.ts

···
 import {
 	getTranscriptVTT,
 	saveTranscriptVTT,
+	hasTranscript,
+	saveTranscript,
+	getTranscript,
+	deleteTranscript,
 } from "./transcript-storage";
 
 test("transcript storage", async () => {

src/lib/transcript-storage.ts

···
 		return null;
 	}
 }
+
+/**
+ * Compatibility wrappers using VTT as the canonical format
+ */
+export async function hasTranscript(transcriptionId: string): Promise<boolean> {
+	const safeId = validateTranscriptionId(transcriptionId);
+	const filePath = `${TRANSCRIPTS_DIR}/${safeId}.vtt`;
+	try {
+		// Try reading the file; if it exists return true
+		await Bun.file(filePath).text();
+		return true;
+	} catch {
+		return false;
+	}
+}
+
+export async function saveTranscript(
+	transcriptionId: string,
+	content: string,
+): Promise<void> {
+	// Store transcripts as VTT files to keep a single canonical format
+	return saveTranscriptVTT(transcriptionId, content);
+}
+
+export async function getTranscript(
+	transcriptionId: string,
+): Promise<string | null> {
+	// Read VTT content as the transcript text
+	return getTranscriptVTT(transcriptionId);
+}
+
+export async function deleteTranscript(transcriptionId: string): Promise<void> {
+	const safeId = validateTranscriptionId(transcriptionId);
+	const filePath = `${TRANSCRIPTS_DIR}/${safeId}.vtt`;
+	try {
+		const fs = await import("node:fs");
+		if (fs.existsSync(filePath)) {
+			fs.unlinkSync(filePath);
+		}
+	} catch {
+		// Ignore errors
+	}
+}