phg
e268794564
Preserve full diff opcodes before grouping, route modal navigation to a two-axis viewport-sized scroller, and calculate side-by-side layout using terminal cell widths so tabbed Hosts File lines keep a stable divider.
12 lines
763 B
Markdown
12 lines
763 B
Markdown
# Privileged mode gates system-file writes
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The application starts read-only and permits changes to `/etc/hosts` only after
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sudo access has been validated and a timestamped backup has been created. All
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privileged writes go through `HostsManager` during that mode. This makes the
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authorization boundary visible to the user and guarantees a pre-edit safety
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snapshot. While Privileged Mode remains active, the TUI exposes that session's
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exact Pre-edit Backup path and can restore it after explicit confirmation. The
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restore confirmation identifies both the backup source and Hosts File target;
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it presents an exact-file Git-style diff and rechecks both reviewed files before
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restoring. On success the application reloads the Hosts File and clears
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undo/redo history.
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