lgj-abi: status arms for the new mask-risc ExecError variants (Wave 4 base)

[AdaWorldAPI]

exec_error_to_status gains arms for ForeignOutOfRange, ForeignLaneOutOfRange, ForeignLaneKind and TerminalNeedsOut, mapped onto the codes their Planes-side twins already use. No new codes, no ABI bump.

Depends on lance-graph #1256 (the variants live there); CI is red against lance-graph main until it merges. Verified locally against #1256's head: cargo test -p lgj-abi 188 checks, clippy -D warnings clean, and the Java suite ALL PASSED (409 checks) on JDK 28+16 with --enable-preview (Valhalla value records + Panama FFM) against the rebuilt liblgj_abi.so (abi 0.11, ndarray::simd avx512).

Wave 4 (Java groupBy/join over the same Quack lowering) lands on this branch next.

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📒 Files selected for processing (3)

• native/lgj-abi/src/exports.rs
• native/lgj-abi/src/exports/tests/lowering_convergence.rs
• native/lgj-abi/src/plan_lower.rs

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[AdaWorldAPI]

CI status on 183745e: clippy and rust-test fail with E0599: no variant named ForeignOutOfRange / ForeignLaneOutOfRange / ForeignLaneKind / TerminalNeedsOut in lance_graph_mask_risc::ExecError. Not this PR's defect: CI checks out lance-graph main, and those variants land with lance-graph #1256 (which itself waits on ndarray #318). The fix is the merge order (#318 → #1256 → this); nothing to port here. Verified locally against #1256's head: lgj-abi 188 checks and the Java suite 409 checks green on JDK 28 with --enable-preview. Will stay watched until green.

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