lgj-abi: compile against current lance-graph main; pin test tile explicitly

[AdaWorldAPI]

What

• Compile fix. lance-graph main added two errors, ExecError::ExtentOutOfRange and ExecError::ExtentUnsupported, and exec_error_to_status did not handle them. Without the two arms, lgj-abi does not compile against lance-graph main. Only execute_extent raises them, when called over a partial row range. This crate always runs the whole population, so reaching either would be a bug in this file. They join the existing arms of that kind.
• Test tile pinned. group_sum's tiled-vs-reference test now uses an explicit 8-word tile instead of tile_words_for. The default tile is a performance setting: it becomes 256 words in lance-graph #1281. The test must not depend on that default to span several tiles, and its own multi-tile assertion fails if it no longer does.

This PR is independent of lance-graph #1281 and is correct against either tile default.

Verification (local, against lance-graph with #1281 applied)

• cargo test in native/lgj-abi: 191 passed. cargo clippy --all-targets -- -D warnings is clean.
• AllTests on JDK 28 with --enable-preview against the freshly built release .so: ALL PASSED (612 checks). The runtime line reported abi 0.12 and ndarray::simd avx512.
• I did not run the four consumer mains locally; the java-suites CI job covers them.

🤖 Generated with Claude Code

https://claude.ai/code/session_01GXUahz73MZxtxWcfpHp9dG

---

Generated by Claude Code

Summary by CodeRabbit

• Bug Fixes
  • Operations encountering extents that are out of range or unsupported now report an allocation failure status, consistent with related range and scratch allocation errors. This provides a more consistent error response when these conditions occur.

[coderabbitai]

Navigate logical layers of code changes, visualize relationships, and explore their blast radius.

Note

Currently processing new changes in this PR. This may take a few minutes, please wait...

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Essentials

Run ID: f1d4ad1a-24d5-4110-9911-7b26dd46b575

📥 Commits

Reviewing files that changed from the base of the PR and between c468e76 and 979692c.

📒 Files selected for processing (2)

• native/lgj-abi/src/exports.rs
• native/lgj-abi/src/exports/tests/group_sum.rs

 _____________________________________________________________________________________________________________________________________________________________________________________________________
< Don't think outside the box - find the box. When faced with an impossible problem, identify the real constraints. Ask yourself: 'Does it have to be done this way? Does it have to be done at all?' >
 -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  \
   \   \
        \ /\
        ( )
      .( o ).

✨ Finishing Touches

📝 Generate docstrings

• Commit to this branch
• Create a new PR

---

_{Comment @coderabbitai help to get the list of available commands.}

[cursor]

Bugbot couldn't run - usage limit reached

Bugbot is counted against Cursor usage for this user or team, and this run hit a usage or spend limit.

A user or team admin can review and increase usage limits in the Cursor dashboard.

(requestId: serverGenReqId_ac3af5ce-ce5e-4902-a277-610d55c8d51f)