fix(lua): extract assigned function expressions

[danusha2345]

Summary

Fixes #1616.

• index function expressions assigned to locals, table members, static keyed fields, and nested callback tables
• attribute calls inside those expressions to the callable node instead of the file node
• keep dynamic bracket keys unguessed and avoid extra variable nodes for ordinary member assignments
• implement the same behavior in the TypeScript/WASM and native Rust extraction paths
• bump the extraction version and add extraction, resolution, callers, and kernel-parity regressions

Verification

• npm run build:kernel
• npm run build
• focused extraction/resolution/native parity suite — 820 passed
• npm test -- --reporter=dot — 194 files, 3231 passed, 10 skipped

[danusha2345]

Merged current main (3adf067, post-#1770) into this branch: head 5c6b239. The only conflict was the CHANGELOG entry; no source conflict. tsc clean, the branch's tests pass.

[danusha2345]

Merged current main (43271f3) into this branch: head c8dbf8c. The only conflict was the CHANGELOG entry; no source conflict. tsc clean, the branch's tests pass.

[danusha2345]

Merged current main (85550eb) into this branch: head 9e82668. The only conflict was the CHANGELOG entry; no source conflict. tsc clean, the branch's tests pass.

[danusha2345]

Merged current main (8733c28) into this branch: head d344b85. The only conflict was the CHANGELOG entry; no source conflict. tsc clean, the branch's tests pass.

[colbymchenry]

Landed onto current main via #1778 (fixes #1650 / #1616). Source/test files kept byte-identical to this PR; changelog cites both #1616 and #1650. Thanks @danusha2345 — closing this as superseded by #1778.

[colbymchenry]

Superseded by #1778 which lands this fix for #1650/#1616 on current main.