Integrate with TreeSitter for SplitRecursively. #109 (#128)

* Add a bunch of tree sitter dependencies.

* Integrate with `TreeSitter` for `SplitRecursively`.

Author: badmonster0

Cargo.toml

@@ -49,3 +49,8 @@ console-subscriber = "0.4.1"
 env_logger = "0.11.7"
 reqwest = { version = "0.12.13", features = ["json"] }
 async-openai = "0.28.0"
+tree-sitter = "0.25.3"
+tree-sitter-python = "0.23.6"
+tree-sitter-javascript = "0.23.1"
+tree-sitter-typescript = "0.23.2"
+tree-sitter-md = "0.3.2"