Implement arrangement framework for node groups

- Introduced `frames.py` to manage field complex calculations and their arrangement within node groups.
- Added functionality to create and remove field frames based on node arrangements.
- Developed `passages.py` to find unobstructed paths for connections around calculation frames.
- Implemented `references.py` to route shared results on peripheral tracks, ensuring efficient distribution of outputs.
- Created `sections.py` to reserve space for field calculations adjacent to geometry consumers.
- Added `sources.py` to position shared calculation sources effectively beside their distribution channels.
- Enhanced outline smoothing with `outline_smoothing.py` to adapt camera depth along original outlines.

tools/nodes/common/cutout_boundary.py

@@ -36,10 +36,8 @@ def taper_split_profile(group, original, geometry):
     rim = evaluate_field(group, edge_boundary_field(nodes, links), "FLOAT", "POINT")
     protected = sample_field(group, original, rim, "FLOAT", index=nearest.outputs["Index"])
     influence = boundary_influence(group, protected)
-    controls = group_input(nodes, {"Edge Round", "Split Threshold"})
-    strength = _math(group, "ADD", 1, _math(group, "MULTIPLY", controls.outputs["Edge Round"], 4))
-    band = _math(group, "MINIMUM", _math(group, "MULTIPLY", influence, strength), 1)
-    band = _math(group, "MULTIPLY", band, _math(group, "GREATER_THAN", controls.outputs["Split Threshold"], 0))
+    controls = group_input(nodes, {"Split Threshold"})
+    band = _math(group, "MULTIPLY", influence, _math(group, "GREATER_THAN", controls.outputs["Split Threshold"], 0))
     retained = _math(group, "SQRT", _math(group, "MAXIMUM", _math(group, "SUBTRACT", 1, band), 0))
     profile = _math(group, "MULTIPLY", read_float_attribute(group, "o_balloon"), retained)
     return store_float_attribute(group, geometry, "o_balloon", profile)