feat: add LLMX configuration with Crawl4AI RAG MCP server

- Add config.toml with MCP servers configuration
- Add compose.yaml for PostgreSQL+pgvector, PostgREST, and Crawl4AI RAG
- Include forked mcp-crawl4ai-rag with BGE 1024-dim embedding support
- Custom schema (crawled_pages_1024.sql) for BGE embeddings

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

servers/mcp-crawl4ai-rag/.dockerignore

@@ -0,0 +1,4 @@
+crawl4ai_mcp.egg-info
+__pycache__
+.venv
+.env