Rework 'Split Vec2' and 'Split Channels' as multi-output nodes and merge 'Position/Tangent on Path' into 'Evaluate Path'

[Keavon]

Retired in favor of replacements:

Extract Channel -> Split Channels
Extract XY -> Split Vec2

Position on Path -> Evaluate Path
Tangent on Path -> Evaluate Path

Replaced by a single node under the same name:

Split Channels
Split Vec2

[cubic-dev-ai]

1 issue found across 16 files

Confidence score: 3/5

• adjustments.rs makes existing graphs that extract channels from colors or gradients type-incompatible after migration. Preserve those implementations or route those nodes to a compatible replacement.

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. When an issue isn't valid or won't be fixed in this PR, reply in its thread with the reason and then resolve the thread. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="node-graph/nodes/raster/src/adjustments.rs">

<violation number="1" location="node-graph/nodes/raster/src/adjustments.rs:158">
P2: This removes the prior `Color` and `Gradient` implementations, but migration redirects every old Extract Channel node to this Raster-only node. Existing graphs extracting channels from colors or gradients become type-incompatible; preserve those implementations or migrate those cases separately.</violation>
</file>

<sub>Reply with feedback, questions, or to request a fix.

Re-trigger cubic</sub>