Decouple and Configure Window Detachment Thresholds in SortZone

[tobiu]

Currently, Neo.draggable.container.SortZone uses the same intersection logic (or similar 50% ratios) for both in-app item sorting (swapping items) and window detachment/re-integration. This limits UX tuning, as users often expect a "tear-off" into a new window to happen sooner (e.g., at 20% overlap) than an item swap.

Goal:

1. Decouple the window detachment/re-integration thresholds from the standard sorting thresholds.
2. Introduce specific configs (e.g., detachThreshold: 0.2, reattachThreshold: 0.8).
3. Ensure onDragMove logic uses the correct threshold for the correct action (sorting vs. window boundary checks).

[tobiu]

Input from Gemini:

✦ ### Session Refactoring Summary (Issue #8160)

In this session, we focused on decoupling window detachment thresholds and consolidating the intersection logic.

Key Changes:

1. SortZone.mjs Refactoring:
   • Extracted the core intersection and threshold logic into a dedicated checkWindowBoundary(data) method.
   • Introduced an onWindowDragContinue(intersectionRatio, data) hook, allowing subclasses to react to drag moves that stay within the detached/attached state boundaries.
   • Consolidated the logic for detachThreshold and reattachThreshold to ensure consistent behavior across all sorting zones.
2. DashboardSortZone.mjs Alignment:
   • Removed duplicated boundary check logic in onDragMove, now delegating to super.onDragMove().
   • Implemented onWindowDragContinue to handle the hand-off to DragCoordinator for remote drag updates when the item is detached.
3. State Sanitation:
   • Removed the experimental isReintegrating flag and logic, reverting to a cleaner state machine.
4. Method Ordering:
   • Methods have been re-sorted chronologically per project guidelines.

Outcome:
The threshold logic is now centralized and correctly handles directionality (inwards vs. outwards) using lastIntersectionRatio. The system is prepared for further investigation into the re-detach behavior after full re-integration.