fix(java): ignore non-Scala/Lombok-style default helper methods

[mandrean]

Why?

When Scala is present on the runtime classpath, Java compatible serializers enable Scala default-value support globally. Plain Java classes generated with Lombok @Builder.Default can contain private helper methods named like $default$imageRelations(), which previously matched the broad Scala default-method scan and caused warning noise during deserialization.

What does this PR do?

• Restricts Scala default-value method detection to known Scala constructor/apply helper prefixes with numeric parameter suffixes.
• Ignores non-Scala/Lombok-style $default$ helper names and out-of-range parameter indexes without invoking them.
• Keeps Scala case-class and regular-class constructor defaults working, including nested/default-value regression coverage.
• Adds Java fixtures and Scala serializer tests covering Lombok-like helper methods.

Related issues

Closes #3720

AI Contribution Checklist

• Substantial AI assistance was used in this PR: yes
• If yes, I included a completed AI Contribution Checklist in this PR description and the required AI Usage Disclosure.
• If yes, my PR description includes the required ai_review summary and screenshot evidence of the final clean AI review results from both fresh reviewers on the current PR diff or current HEAD after the latest code changes.

Does this PR introduce any user-facing change?

• Does this PR introduce any public API change?
• Does this PR introduce any binary protocol compatibility change?

Benchmark

N/A. This is a targeted default-method filtering fix and does not change serialization format or hot-path serialization logic.

Validation

• mvn -T16 -pl fory-core -am install -DskipTests -Dmaven.javadoc.skip=true -Dmaven.source.skip=true
• mvn -pl fory-core -Dtest=org.apache.fory.platform.AndroidSupportStaticCheckTest#testScalaDefaultValuesDoNotUseTrustedLookupOnAndroid test
• sbt "+testOnly org.apache.fory.util.ScalaDefaultValueUtilsTest org.apache.fory.serializer.scala.ScalaDefaultValueTest"
• sbt +test
• mvn -T16 spotless:check checkstyle:check

[chaokunyang]

LGTM