Previously _minRatio was baked into WindowContainer at construction time
and never updated. Now adjustBoundary() takes minRatio as a parameter,
WindowManager._getMinRatio() reads it from Gio.Settings on every call,
and the settings reference is injected from extension.ts on enable().
- Add _splitRatios[] to WindowContainer — each child owns a fraction of
the parent that always sums to 1.0; bounds are computed via prefix-sum
so the last item absorbs rounding remainder (no pixel gaps)
- addWindow/removeWindow reset to equal splits; itemDragged swaps only
items (ratios stay slot-based) so windows take the size of the slot
they move into
- Add adjustBoundary() for live edge-drag resizing clamped to a
configurable minimum (default 10%, schema key min-window-size-percent)
- Add reset-ratios keybinding (Ctrl+Z) that resets the active container
to equal splits via WindowManager.resetActiveContainerRatios()
- Connect size-changed signal alongside position-changed so east/south
edge drags (width-only changes) are detected and the adjacent window
is repositioned live
- Replace LIFO pop() event queue with name-keyed Map so duplicate events
collapse to the latest callback and timers never fight each other
- Remove redundant move_frame() before move_resize_frame(); fix retry
condition to use symmetric pixel tolerance
- Add _isTiling re-entrancy guard around all tileWindows() call sites
so compositor position-changed callbacks cannot recurse
- Remove double tileWindows() call in monitor.tileWindows() (move()
already calls it internally)
