79bad40cfd
- Added `atom` edit mode to `EditTool` with single-point hashline-style dispatch and `executeAtomSingle`. - Added `AtomToolEdit`/`AtomParams` schema and `atom` prompt docs to require one op per edit entry. - Changed `EditTool` entry processing to inherit per-entry `path` from a top-level request `path` fallback. - Added top-level `path` defaults to patch and replace schemas and now reject missing entry paths. - Added an `atom` streaming strategy and registered it in `EDIT_MODE_STRATEGIES` for live mode support. - Enabled hashline read anchors for `atom` mode via `file-display-mode.ts` path-display logic. - Added `atom` unit tests covering schema checks, anchor conflicts, and hash mismatch diagnostics.