feat: turn mimetype into proper util to dedupe this all

src/s3/bulkUpload.ts

@@ -8,6 +8,7 @@ import { join, relative } from "node:path";
 import { S3Client, PutObjectCommand } from "@aws-sdk/client-s3";
 import { confirm } from "@inquirer/prompts";
 import { SingleBar, Presets } from "cli-progress";
+import { getMimeType } from "../utils/mimeType.js";
 
 const accessKeyId = process.env.AWS_ACCESS_KEY_ID;
 const secretAccessKey = process.env.AWS_SECRET_ACCESS_KEY;
@@ -185,14 +186,17 @@ for (const file of files) {
   try {
     const filePath = join(dataDirectory, file);
     const fileContent = await readFile(filePath);
+    const contentType = getMimeType(file);
 
     const command = new PutObjectCommand({
       // eslint-disable-next-line @typescript-eslint/naming-convention -- AWS SDK
-      Body:   fileContent,
+      Body:        fileContent,
       // eslint-disable-next-line @typescript-eslint/naming-convention -- AWS SDK
-      Bucket: "nhcarrigan",
+      Bucket:      "nhcarrigan",
       // eslint-disable-next-line @typescript-eslint/naming-convention -- AWS SDK
-      Key:    file,
+      ContentType: contentType,
+      // eslint-disable-next-line @typescript-eslint/naming-convention -- AWS SDK
+      Key:         file,
     });
 
     await s3.send(command);