feat: LLM-enriched skill generation on CT 216

[rodaddy]

Summary

The skills generate command produces raw schema dumps — tool names, descriptions, input schemas. A good skill file needs trigger phrases, usage examples, gotchas, and "USE WHEN" patterns.

Proposal

Add --enrich flag to skills generate that sends the raw schema through an LLM to produce:

• Trigger phrases and natural language aliases
• "USE WHEN" routing patterns
• Usage examples with common parameter combinations
• Gotchas and edge cases from tool descriptions

Dependencies

• LiteLLM access on CT 216 (Opus 4.6, Gemini 3.1 Pro, 3.5 Flash available)
• skills generate needs to route schema introspection through the remote daemon when MCP2CLI_REMOTE_URL is set (feat: per-service remote/local routing, lifecycle logging, and preconnect #26 added remote routing but generate still falls back to local spawning)

Related

• PR feat: downloadable service skill bundles #25: skill bundle generation (raw schema)
• PR feat: per-service remote/local routing, lifecycle logging, and preconnect #26: remote routing with local fallback
• 5 services failed local generation (plex, unifi, stealth-browser, agent-browser, yt-dlp) because they only exist on CT 216