nika-core 0.35.4

Lightweight AST and analysis core for Nika workflows.

This crate contains the protocol-agnostic parts of Nika:

• Source spans and file registry
• Raw AST (YAML → RawWorkflow)
• Analyzed AST (RawWorkflow → AnalyzedWorkflow)
• Binding types and transforms
• Static catalogs (providers, models, MCP aliases)

It does NOT contain:

• Runtime execution (tokio, reqwest, rig-core)
• Media pipeline (image, zstd, c2pa)
• MCP client (rmcp)
• TUI (ratatui)
• LSP server (tower-lsp)