[AURON #2193] Implement native support for inner residual join conditions on SMJ/SHJ

[weimingdiit]

Which issue does this PR close?

Closes #2193

Rationale for this change

Auron currently only converts SMJ/SHJ joins when the join condition is empty. As a result, inner joins that contain both equi-join keys and a residual predicate fall back to Spark even though the equi-join part is already native-compatible.

The native join plan only models equi-join keys today, so this change keeps the native join focused on the equi-join portion and evaluates the residual predicate with a native filter above the join output.

What changes are included in this PR?

• Allow native conversion of SortMergeJoinExec and ShuffledHashJoinExec when an InnerLike join has a residual condition.
• Keep native join conversion based on equi-join keys only.
• Apply the residual predicate as a native filter on top of the native join output.
• Continue to reject residual join conditions for non-inner join types.
• Add query tests for:
  • native SMJ with an inner residual condition
  • native SHJ with an inner residual condition in force-SHJ mode
• Add a small test helper for Auron configs that are read from SparkEnv/SparkContext.

Are there any user-facing changes?

Yes. Inner joins with equi-join keys plus a residual predicate can now remain on the native SMJ/SHJ path instead of falling back entirely to Spark.

How was this patch tested?

CI.