Add a 普通窗口模式 switch to the general settings section. When enabled the
window is created with WS_EX_APPWINDOW instead of WS_EX_TOOLWINDOW, so it
appears in the taskbar and Alt+Tab, and losing focus no longer hides it. The
extended style switches live without a restart; a failed save rolls the
checkbox back and reports the error, and the general section now reports
save failures instead of discarding them.
The switch is drawn anti-aliased. GDI's RoundRect has no smoothing, and at
22 logical pixels tall the staircase on the pill and the knob read as a
low-resolution control, so both shapes are rasterized together at 4x and
halftone-downscaled. The off track uses p.faint: p.line is the card border
and p.pill is the card fill, so the previous colours made the switch
disappear into the card it sits on.
Update source input geometry only when text emptiness changes and preserve overflow scrolling. Add native input repaint regression coverage and require sessions to commit verified changes in AGENTS.md.
lingr25