feat(multipart): Implement full multipart upload support with persistent manager, periodic cleanup, and API integration

ts/controllers/bucket.controller.ts

@@ -54,8 +54,9 @@ export class BucketController {
   }
 
   /**
-   * GET /:bucket - List objects
+   * GET /:bucket - List objects or multipart uploads
    * Supports both V1 and V2 listing (V2 uses list-type=2 query param)
+   * Multipart uploads listing is triggered by ?uploads query parameter
    */
   public static async listObjects(
     req: plugins.http.IncomingMessage,
@@ -64,6 +65,12 @@ export class BucketController {
     params: Record<string, string>
   ): Promise<void> {
     const { bucket } = params;
+
+    // Check if this is a ListMultipartUploads request
+    if (ctx.query.uploads !== undefined) {
+      return BucketController.listMultipartUploads(req, res, ctx, params);
+    }
+
     const isV2 = ctx.query['list-type'] === '2';
 
     const result = await ctx.store.listObjects(bucket, {
@@ -127,4 +134,47 @@ export class BucketController {
       });
     }
   }
+
+  /**
+   * GET /:bucket?uploads - List multipart uploads
+   */
+  private static async listMultipartUploads(
+    req: plugins.http.IncomingMessage,
+    res: plugins.http.ServerResponse,
+    ctx: S3Context,
+    params: Record<string, string>
+  ): Promise<void> {
+    const { bucket } = params;
+
+    // Get all multipart uploads for this bucket
+    const uploads = ctx.multipart.listUploads(bucket);
+
+    // Build XML response
+    await ctx.sendXML({
+      ListMultipartUploadsResult: {
+        '@_xmlns': 'http://s3.amazonaws.com/doc/2006-03-01/',
+        Bucket: bucket,
+        KeyMarker: '',
+        UploadIdMarker: '',
+        MaxUploads: 1000,
+        IsTruncated: false,
+        ...(uploads.length > 0 && {
+          Upload: uploads.map((upload) => ({
+            Key: upload.key,
+            UploadId: upload.uploadId,
+            Initiator: {
+              ID: 'S3RVER',
+              DisplayName: 'S3RVER',
+            },
+            Owner: {
+              ID: 'S3RVER',
+              DisplayName: 'S3RVER',
+            },
+            StorageClass: 'STANDARD',
+            Initiated: upload.initiated.toISOString(),
+          })),
+        }),
+      },
+    });
+  }
 }