Fix ClassCastException in Record.compareTo()

[harshitsingh070]

Description

Fixes #813

Record.compareTo() attempted to cast the underlying Object[] values to Comparable[].

Since the runtime type of the array remains Object[], this resulted in a ClassCastException when comparing records, even when the individual fields implemented Comparable.

Changes

• Replaced the invalid Object[] to Comparable[] array cast with element-wise comparison.
• Preserved the existing field type validation.
• Added regression tests for Record.compareTo() covering equality, ordering, tie-breaking, single-field records, and dissimilar field types.

Testing

Ran:

.\mvnw test -pl wayang-commons/wayang-basic "-Dtest=org.apache.wayang.basic.data.RecordTest"

Result:

Tests run: 6, Failures: 0, Errors: 0, Skipped: 0
BUILD SUCCESS

Also ran the specific regression test:

.\mvnw test -pl wayang-commons/wayang-basic "-Dtest=org.apache.wayang.basic.data.RecordTest#compareToShouldNotThrowClassCastExceptionDueToArrayCast"

Result:

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
BUILD SUCCESS