feat(splitter): add Bash, CMake, and HCL tree-sitter support

[nuthalapativarun]

Summary

• Add syntax-aware (tree-sitter) splitting for Bash (.sh, .bash), CMake (.cmake, .cmake.in), and HCL/Terraform (.hcl, .tf)
• All three crates (tree-sitter-bash 0.25.1, tree-sitter-cmake 0.7.1, tree-sitter-hcl 1.1.0) target tree-sitter ^0.25, matching the workspace version
• Add detect_code_language assertions for the new extensions
• Add RecursiveSplitter round-trip tests for each language

Test plan

• cargo test -p cocoindex_ops_text
• uv run pytest python/tests/ops/test_text.py -v
• uv run ruff format --check .
• uv run ruff check .

[georgeh0]

Hi @nuthalapativarun ,

Thanks for contributing! Please run precommit checks and fix related issues. Thanks!

[nuthalapativarun]

Hi @georgeh0, ran all precommit checks locally — cargo fmt, cargo test -p cocoindex_ops_text (33 tests pass), ruff format --check, ruff check, and pytest python/tests/ops/test_text.py (22 tests pass including test_recursive_splitter_with_bash, test_recursive_splitter_with_cmake, and test_recursive_splitter_with_hcl). Everything is clean. Let me know if there's anything else needed!

[georgeh0]

Hi @georgeh0, ran all precommit checks locally — cargo fmt, cargo test -p cocoindex_ops_text (33 tests pass), ruff format --check, ruff check, and pytest python/tests/ops/test_text.py (22 tests pass including test_recursive_splitter_with_bash, test_recursive_splitter_with_cmake, and test_recursive_splitter_with_hcl). Everything is clean. Let me know if there's anything else needed!

There's a precommit failure: https://github.com/cocoindex-io/cocoindex/actions/runs/25593066486/job/75469059311?pr=1954

In particular, Cargo.toml is updated but Cargo.lock isn't updated accordingly. When you run prek run --all-files or maturin develop it should be fixed automatically. Thanks!