fix(smartarchive): Improve tar entry streaming handling and add in-memory gzip/tgz tests

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartarchive',
-  version: '4.2.1',
+  version: '4.2.2',
   description: 'A library for working with archive files, providing utilities for compressing and decompressing data.'
 }

ts/classes.smartarchive.ts

@@ -158,21 +158,34 @@ export class SmartArchive {
                 console.log(
                   `tar stream directory: ${header.name} ... skipping!`,
                 );
-                next();
+                stream.resume(); // Consume directory stream
+                stream.on('end', () => next());
                 return;
               }
               console.log(`tar stream file: ${header.name}`);
+              
+              // Create a PassThrough stream to buffer the data
+              const passThrough = new plugins.stream.PassThrough();
               const streamfile = plugins.smartfile.StreamFile.fromStream(
-                stream,
+                passThrough,
                 header.name,
               );
+              
+              // Push the streamfile immediately
               streamFileIntake.push(streamfile);
-              stream.on('end', function () {
-                next(); // ready for next entry
+              
+              // Pipe the tar entry stream to the passthrough
+              stream.pipe(passThrough);
+              
+              // Move to next entry when this one ends
+              stream.on('end', () => {
+                passThrough.end();
+                next();
               });
             });
             tarStream.on('finish', function () {
-              console.log('finished');
+              console.log('tar extraction finished');
+              // Only signal end if this is the final stream
               streamFileIntake.signalEnd();
             });
             analyzedResultChunk.resultStream.pipe(
@@ -199,10 +212,13 @@ export class SmartArchive {
             analyzedResultChunk.isArchive &&
             analyzedResultChunk.decompressionStream
           ) {
-            analyzedResultChunk.resultStream
+            // For nested archives (like gzip containing tar)
+            const nestedStream = analyzedResultChunk.resultStream
               .pipe(analyzedResultChunk.decompressionStream)
               .pipe(createAnalyzedStream())
               .pipe(createUnpackStream());
+            
+            // Don't signal end here - let the nested unpacker handle it
           } else {
             const streamFile = plugins.smartfile.StreamFile.fromStream(
               analyzedResultChunk.resultStream,