feat: S3 client compatibility — virtual-hosted style, CORS, presigned multi-method, ListMultipartUploads, edge case fixes

- Virtual-hosted bucket detection from Host header (extractS3BucketFromHost)
- S3 CORS headers + OPTIONS preflight + x-amz-id-2/HostId everywhere
- Presigned GET/PUT/HEAD/DELETE via centralized auth (no GET-only restriction)
- ListMultipartUploads with DB/xml helpers
- UploadPart partNumber range validation (1-10000)
- CompleteMultipartUpload ETag matching and ascending order validation
- DeleteObjects quiet mode support
- CopyObject URL-decode and conditional if-match/if-none-match
- encoding-type=url support in ListObjects V1/V2 XML
- Safe range-based prefix matching (replaces SQL LIKE)
- STREAMING-AWS4-HMAC-SHA256-PAYLOAD → 501 NotImplemented
- Traefik wildcard HostRegex for virtual-hosted style
- S3_VHOST_DOMAINS config env var

src/utils/s3/auth.ts

@@ -174,6 +174,9 @@ export const verifySignature = async (
   const canonicalQueryString = buildCanonicalQueryString(parsedUrl.searchParams);
 
   const contentSha256 = headers['x-amz-content-sha256'] || null;
+  if (contentSha256?.startsWith('STREAMING-')) {
+    return { isValid: false, credential: null, errorCode: 'NotImplemented' };
+  }
   const hashedPayload = await getHashedPayload(body, contentSha256);
 
   const canonicalRequest = buildCanonicalRequest(