feat(library): What are the best marketing automation platforms for AI workflows in 2026? (#8520)

* feat(library): What are the best marketing automation platforms for AI workflows in 2026?

* Pi Babysit: address PR #8520 feedback

* fix(library): link the marketing platform vs agent builder guide

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

Author: 3 people