666877f8

By: Lucien Huber <im@lcnbr.ch>

finish feynkit tensor tutorials and portable pin

Complete the one-loop QCD numerator workflow, add paired symmetry-aware tensor-reduction tutorials through rank 20, regenerate native PyO3 stubs, remove the obsolete workspace-hack adapter, and pin the portable consumer build to the finalized FeynKit revision.

User requests:

Spawn subagent: Add an example that loads 1-loop QCD and shows all gluon propagator graphs with their analytic numerator

Show an explicit example of `diagram.reduce_tensor_numerator` in the marimo file

Continue but I paused the goal as I want you to do a final polishing round, identifying the main important issues left and finishing what you were doing and then do one last clean commit+push and pause/stop there.
GitHub
Time to Start Worker time Duration Time to finish Idle
Config - - - - 2h46m34s
Eval - - - - -
Build - - - - -
Suite - - - - 2h46m34s