Added

• TsxParser in cha-parser — .tsx files now route to a parser using tree_sitter_typescript::LANGUAGE_TSX, so JSX nodes (jsx_element, jsx_attribute, jsx_self_closing_element) are first-class AST citizens. WASM plugins can now match them via tree_query::run_query.
• examples/wasm-plugin-react-hooks — example WASM plugin demonstrating tree_query integration. Detects 5 React Rules of Hooks violations: hooks called from non-component functions, hooks in conditionals, hooks in loops, hooks after early return, and hooks in nested callbacks.
• examples/wasm-plugin-todo-tracker — example WASM plugin demonstrating extended TODO comment tracking beyond the builtin todo_tracker. Adds 5 new smells: extended tag set (BUG/WIP/OPTIMIZE/PERF/DEPRECATED + user-configurable extras), (by:YYYY-MM-DD) expiration, priority escalation (!/!!/!!!), per-file TODO hotspot detection, and required-attribution policy.

Notes

• WIT unchanged at cha:plugin@0.3.0 (no breaking change).
• Routing for .ts / .mts / .cts continues to use LANGUAGE_TYPESCRIPT. Only .tsx switched.