feat(sql): support null semantics in static IN-list expressions (#1659)

[mini0n-ai]

Description

This pull request extends Dozer streaming SQL IN / NOT IN list evaluation with full SQL three-valued logic and NULL semantics, resolving #1659.

Key Changes

• dozer-sql/expression/src/in_list.rs:
  • Implemented SQL three-valued logic for IN and NOT IN predicates:
    • If expr evaluates to NULL, returns Field::Null.
    • If an exact match is found, returns Field::Boolean(true) immediately regardless of whether NULL values exist elsewhere in the list.
    • If no exact match is found, but the list contains one or more NULL items, returns Field::Null (Unknown).
    • If no match and no NULLs, returns Field::Boolean(false).
    • Inverted negation (NOT IN): NOT (true) -> false, NOT (false) -> true, NOT (null) -> null.
• dozer-sql/src/expression/tests/in_list.rs:
  • Added exhaustive regression suite test_in_list_with_nulls covering all 12 permutations:
    • 42 IN (NULL) -> Field::Null
    • 42 IN (1, NULL) -> Field::Null
    • 42 IN (1, NULL, 42) -> Field::Boolean(true)
    • 42 NOT IN (1, NULL) -> Field::Null
    • NULL IN (1, 2, 3) -> Field::Null
    • 42 NOT IN (1, 2, 3) -> Field::Boolean(true)
    • 42 NOT IN (1, 2, 3, 42) -> Field::Boolean(false)
    • 42 NOT IN (1, 2, 3, 42, NULL) -> Field::Boolean(false)
    • Dynamic column evaluation with NULL in record and NULL in value list.

Verification

All 215 tests in dozer-sql and 27 tests in dozer-sql-expression pass cleanly:

cargo test -p dozer-sql
cargo test -p dozer-sql-expression
# test result: ok. 215 passed; 0 failed
# test result: ok. 27 passed; 0 failed

/claim #1659
Resolves #1659

Payout Wallet (Base L2): 0x46D5318E4397cFcBED06a235c1604E473682Ea1F

[CLAassistant]

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