🚀 feat: S3 Integration for File handling and Image uploads (#6142)

* French Translation Update

* French Translation Update

* test

* Add fileStrategy S3 Config

* update s3 crud.js

* 🔧 chore: downgrade dotenv to version 16.0.3 and add aws-sdk to package-lock.json

* 🔧 chore: remove aws-sdk from package.json

* 🚀 feat: Integrate AWS SDK for S3 with enhanced upload and retrieval functionalities

* 🚀 feat: Implement S3 integration for file upload and retrieval functionalities

* 🚀 feat: Enhance S3 initialization to support default credentials and improved error handling

---------

Co-authored-by: Gael Martins <gael.martins@acolad.com>

api/server/services/Files/S3/initialize.js

@@ -0,0 +1,43 @@
+const { S3Client } = require('@aws-sdk/client-s3');
+const { logger } = require('~/config');
+
+let s3 = null;
+
+/**
+ * Initializes and returns an instance of the AWS S3 client.
+ *
+ * If AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY are provided, they will be used.
+ * Otherwise, the AWS SDK's default credentials chain (including IRSA) is used.
+ *
+ * @returns {S3Client|null} An instance of S3Client if the region is provided; otherwise, null.
+ */
+const initializeS3 = () => {
+  if (s3) {
+    return s3;
+  }
+
+  const region = process.env.AWS_REGION;
+  if (!region) {
+    logger.error('[initializeS3] AWS_REGION is not set. Cannot initialize S3.');
+    return null;
+  }
+
+  const accessKeyId = process.env.AWS_ACCESS_KEY_ID;
+  const secretAccessKey = process.env.AWS_SECRET_ACCESS_KEY;
+
+  if (accessKeyId && secretAccessKey) {
+    s3 = new S3Client({
+      region,
+      credentials: { accessKeyId, secretAccessKey },
+    });
+    logger.info('[initializeS3] S3 initialized with provided credentials.');
+  } else {
+    // When using IRSA, credentials are automatically provided via the IAM Role attached to the ServiceAccount.
+    s3 = new S3Client({ region });
+    logger.info('[initializeS3] S3 initialized using default credentials (IRSA).');
+  }
+
+  return s3;
+};
+
+module.exports = { initializeS3 };