Add Hermes Tweet seed skill

[kriptoburak]

Summary

• Add Hermes Tweet to scripts/seed-data.json as a curated marketing skill.
• Include Hermes install guidance and safety notes for approval-gated actions.

Fit

SkillX exposes a PR-editable seed catalog for agent skills. Hermes Tweet fits as a Hermes Agent X/Twitter skill and plugin for social listening, trend monitoring, account reads, and controlled account actions.

Validation

• License reviewed: GitHub reports no root license metadata for this repository.
• Duplicate check: no open or closed Hermes Tweet or Xquik PR found for this repository.
• Link check: source repository and raw README/plugin manifest returned HTTP 200.
• Local checks: python3 -m json.tool scripts/seed-data.json and git diff --check.