Capture tree-sitter parser syntax errors

[0xGeorgii]

Tree-sitter is designed to be resilient and parse partial code. When it encounters invalid syntax:

1. It creates an ERROR node in the Concrete Syntax Tree (CST)
2. The ERROR node has kind "ERROR"
3. ERROR nodes are typically not "named" nodes (according to tree-sitter's naming rules)
4. ERROR nodes can be detected via:
   • node.kind() == "ERROR" (direct check)
   • node.has_error() (check if subtree contains errors)