feat: add Hermes Agent format support

[freshtemp-labs]

Summary

Adds full Hermes Agent integration to The Agency — 184+ agents as Hermes SKILL.md files with converter, installer, and documentation.

Changes

🆕 New: integrations/hermes/

• integrations/hermes/skills/<slug>/SKILL.md — 184 converted agents in Hermes SKILL.md format with proper frontmatter (name, description, version, platforms, tags)
• integrations/hermes/README.md — installation guide and format reference

🔧 Modified: scripts/convert.sh

• Added convert_hermes() function — converts agency .md agents to Hermes SKILL.md format
  • YAML frontmatter with: name (kebab-slug), description, version (1.0.0), platforms, tags (derived from category + agent name)
  • Registered as parallel-capable tool for --parallel mode
• Added hermes to tool list, usage text, case statements

🔧 Modified: scripts/install.sh

• Added install_hermes() — copies SKILL.md files to ~/.hermes/skills/agency/<slug>/
• Supports HERMES_SKILL_DIR env var for custom install paths
• Added detect_hermes() — detects Hermes by checking ~/.hermes/ directory
• Added hermes to ALL_TOOLS, tool labels, interactive UI, and usage docs

📝 Modified: README.md

• Added Hermes Agent to supported tools list
• Added Hermes to interactive tool selector UI
• Added tool-specific instructions section with code examples
• Added Hermes to roadmap checklist

Closes #538

[freshtemp-labs]

Hi maintainers! Just submitted this PR adding Hermes Agent format support, converting 184 agents to the Hermes format. All checks are green and mergeable. Would appreciate a review when you get a chance. Thanks!