split up resolveOutputShape

Author: konstibob

src/main/java/dev/zarr/zarrjava/v3/codec/core/ReshapeCodec.java

@@ -148,10 +148,10 @@ int[] resolveOutputShape(int[] inputShape) throws ZarrException {
         // The fundamental reshape law, prod(output) == prod(input).
         checkElementCountPreserved(parsed.outputShape, inputTotal);
 
-        // Step 5: every merge entry must combine adjacent input dims sitting in the same flat position.
+        // Every merge entry must combine adjacent input dims sitting in the same flat position.
         checkMergesAligned(parsed.outputShape, parsed.inputDimsPerOutput, inputShape);
 
-        // Step 6: narrow long -> int for the array API.
+        // Narrow long -> int for the array API.
         return toIntShape(parsed.outputShape);
     }