[PR] fix(arrow): enforce exact Mosaic predicate filtering [paimon-rust]

["QuakeWang (via GitHub)" <gi...@apache.org>]

QuakeWang opened a new pull request, #694:
URL: https://github.com/apache/paimon-rust/pull/694

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   ### Purpose
   
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   Mosaic only used row-group statistics for predicate pushdown, so core reads could return non-matching rows. Residual evaluation could also panic or fail open when predicates referenced physically missing columns.
   
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   ### Brief change log
   
   <!-- Please describe the changes made in this pull request and explain how they address the issue -->
   
     - Apply shared row-level residual filtering after Mosaic row-group pruning.
     - Include non-projected predicate columns in the scan.
     - Remap predicates against physical columns so missing columns follow NULL semantics.
     - Add regression coverage for missing columns, projection, deletion vectors, and direct core reads.
   
   ### Tests
   
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     - `cargo fmt --all -- --check`
     - `cargo clippy --locked --all-targets --workspace --features fulltext,vortex -- -D warnings`
     - `cargo test --locked -p paimon --all-targets --features fulltext,vortex`
     - `cargo test --locked -p paimon-datafusion --test mosaic_tables`
   
   ### API and Format
   
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   ### Documentation
   
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Re: [PR] fix(arrow): enforce exact Mosaic predicate filtering [paimon-rust]

["JingsongLi (via GitHub)" <gi...@apache.org>]

JingsongLi merged PR #694:
URL: https://github.com/apache/paimon-rust/pull/694


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