Add Windows.Direction node for window facing direction

[Copilot]

Adds Windows.Direction node to get window facing direction, parallel to existing Walls.Direction functionality.

Implementation

• New file: src/RhythmRevit/Revit/Elements/Windows.cs
• Returns: Multi-value output with facingDirection (cardinal string: N, NE, E, etc.) and facingVector (XYZ)
• Primary method: Uses FamilyInstance.FacingOrientation property native to window elements
• Fallback: Transform's BasisY for edge cases where FacingOrientation unavailable
• Direction calculation: Reuses Walls.Direction angle-to-cardinal logic for consistency

Usage

// Input: Window element (FamilyInstance)
Windows.Direction(windowElement)

// Output: 
// - facingDirection: "N", "NE", "E", "SE", "S", "SW", "W", "NW"
// - facingVector: XYZ vector

Windows are FamilyInstance elements in Revit with explicit FacingOrientation, unlike walls which compute direction from location curves. The implementation adapts to this fundamental difference while maintaining API consistency.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Windows.Direction</issue_title>
<issue_description>What is the problem that needs solving?
Node to get window direction (like walls.direction)

How would you like to see it solved?
New node based on walls.direction logic

Describe alternatives you've considered
I've done this before with OOTB nodes.

Additional context

</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Windows.Direction #35

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[johnpierson]

lgtm 😎