- Prepended `¶path#TAG` hashline header to plain file, ACP-bridge, and conflict resolution write results.
- Bulk conflict resolutions emit a trailing `Snapshots:` block with one header per written file.
- Suppressed when hashline display mode is disabled or for archive/SQLite/internal-URL targets.
- Added tests covering header presence, patcher usability, and disabled-mode suppression.
- Replaced per-line hash anchors with file-level hash validation in hashline format, changing anchor syntax from LINE+HASH to bare LINE numbers.
- Simplified hashline line separator from pipe (|) to colon (:) and replaced replace operator (->) with colon, added delete operator (!) for explicit line deletion.
- Implemented file-read snapshot caching with multi-snapshot ring buffer per path and file-hash-based recovery to detect and recover from stale edits.
- Refactored hashline grammar, parser, and execution to support file-level hash binding, anchor-scoped validation, and structural bracket warnings for delete operations.
- Updated documentation and test fixtures to reflect new hashline syntax with file hashes, colon separators, and delete operator throughout.
can1357