Implement TextASTSync and TextEditor — the core text editing layer
that bridges raw text and the structured AST. TextASTSync provides
bidirectional text-AST sync with debounce via TreeSitterParser and
generators. TextEditor wraps a text buffer with edit operations,
undo/redo that tracks AST state, find/replace, and selection.
New files: TextASTSync.h, TextEditor.h, step50_test.cpp
Updated: step51/53 tests (replaced stubs with real includes),
CMakeLists.txt (tree-sitter linking), PROGRESS.md
Fixed: step53 find-position off-by-one, canRedo assert logic
19/19 tests pass (step50: 8, step51: 5, step53: 6)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace TreeSitterParser stubs with real tree-sitter C bindings for
Python, C++, and Elisp parsing. Add tree-sitter core via vcpkg and
language grammars via FetchContent. Implement CST-to-AST converters
with auto-annotation, memory pattern detection, error recovery, and
ParseResult/ParseDiagnostic types. All 34 tests pass (6+7+6+8+7).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Implement ASTQueryAPI class with tree walking, JSON output,
findNodesByType, findNodesByProperty, findNodesWithAnnotation
- Add nlohmann_json link for step60_test in CMakeLists.txt
- Add PROGRESS.md for cross-session continuity tracking
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
