data: generate search index for 1,703 Lucide v0.577.0 icons

Pre-built artifacts for semantic search:
- gemini-icon-descriptions.jsonl: VLM descriptions for all 1,703 icons
  (Gemini 2.5 Flash Lite, prompt hash 30eb8a53d63e)
- lucide-search.db: embeddings (nomic-embed-text-v1.5-Q, 768d) +
  descriptions + 88 HDBSCAN cluster assignments with Gemini-named themes
- lucide-icons.db: rebuilt with relational metadata tables
  (icon_tags, icon_categories, icon_aliases)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: mmacpherson