Fixes 3 agents for CONTRIBUTING.md template compliance (missing sections, incorrect headers). Reverts 2 tooling PRs (#371 promptfoo, #337 Vitest) that were merged without required Discussion — Discussions created at #434 and #435.
Adds Agentic Search Optimizer to Marketing division. Focuses on AI browsing agent task completion, WebMCP readiness audits, and agent friction mapping.