Bill 742c33d813 Phase 3c: Classical editing mode (Steps 50-53) ...

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>

2026-02-08 15:45:59 -07:00

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