feat: add sales-revops-marketing plugin (Ch 23)

[mjunaidca]

Summary

• Adds the sales-revops-marketing plugin (5th plugin in the catalog) for Chapter 23: Sales, RevOps & Marketing
• 19 skills: 14 product skills (prospect-research, lead-scoring, outreach, sequence, pipeline, campaign-planning, content-creation, copywriting, performance-analysis, persona-icp, crm-enrichment, follow-up, pre-call-brief, content-calendar) + 5 RevOps agent skills (crm-hygiene-agent, lead-intelligence-agent, marketing-performance-agent, outreach-sequencing-agent, revenue-reporting-agent) + global router
• 4 commands: research-prospect, score-lead, plan-campaign, build-sequence
• 4 workflow recipes: prospect-to-meeting, lead-nurture-sequence, campaign-launch, weekly-revops-review
• 4 jurisdiction overlays: US (CAN-SPAM, CCPA, TCPA), EU (GDPR, ePrivacy), Pakistan (PECA, PTA), GCC (UAE PDPL, KSA PDPL)
• Eval harness: 14 cases (8 routing, 4 accuracy, 2 negative) with cases.yaml + run.py
• CI: sales-revops-marketing-evals.yml (PRs) + sales-revops-marketing-release.yml (tags → zip + GitHub Release)
• marketplace.json updated with 5th plugin entry

Test plan

• python3 -m json.tool marketplace.json — valid JSON
• cd sales-revops-marketing && uv run evals/run.py --dry-run — 14 cases listed
• All 19 skills have SKILL.md with name: and description: fields
• CI evals workflow triggers on PR paths
• CI release workflow triggers on sales-revops-marketing-v* tags

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