d22fb5e878
- Added file deletion and rename operations to hashline edit mode with atomic semantics. - Renamed hashline edit operation keys and fields for clarity: set->target, set_range->first/last, insert->before/after, body->new_content/inserted_lines. - Added optional content-replace edit variant in hashline mode via PI_HL_REPLACETXT environment variable. - Enhanced edit validation with per-variant type checking and detailed error messages for malformed operations.