Cmd+K (Ctrl+K on Win/Linux) now opens a unified palette with two
modes: Chat (default) and Search (existing behavior). Tab cycles
between them. In Chat mode, if the user triggered the shortcut from
the markdown editor, the palette auto-attaches a removable chip
showing the note path and precise cursor line. Enter sends the
prompt to the right-sidebar copilot — opening the sidebar if closed
and starting a fresh chat tab — with the chip carried as a
FileMention whose lineNumber is forwarded to the agent as
"... at <path> (line N)" so the agent can use workspace-readFile
with offset to fetch the right slice on demand.
Line numbers are computed against the same getMarkdownWithBlankLines
serializer used to write notes to disk, so the reference is
byte-identical to what the agent reads back.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
