docs(library): update best-ai-workflow-builders (#8516)

* docs(library): update best-ai-workflow-builders

* Pi Babysit: address PR #8516 feedback

* fix(library): restore the coding-agents vs workflow-agents link

* fix(library): name Sim as the AI workspace and use workflow builder, not canvas

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Co-authored-by: Sim Pi Agent <pi@sim.ai>
Co-authored-by: Waleed Latif <walif6@gmail.com>

Author: 3 people