v0.5.0

VS Code Visualization — Schema Spread Resolution

• Fragment spreads (...ns::fragment) are now fully pre-resolved at model-build
  time. Every schema card in both the workspace overview and the mapping detail
  view shows the complete, flat list of fields — including all inherited spread
  fields — without any special spread indicators. Recursive fragment chains
  (fragments that spread other fragments) are resolved iteratively until stable.
• Fragment nodes no longer appear as separate cards in the overview graph.
  Fragments are an authoring shorthand; the viz shows the resolved result.
• Overview mapping arrows now always render for cross-namespace mappings. A
  two-pass layout build ensures all schema node IDs are registered before edges
  are created, fixing silent edge drops when a mapping's namespace was processed
  before its source or target schema namespace.
• Source and target schema cards in the mapping detail view now show all
  spread-inherited fields alongside directly declared fields, so field-level
  arrows connect correctly to every field in the card.

VS Code Extension

• Added context-aware lineage actions: right-clicking a field or schema in a
  .stm file now surfaces Open Lineage View and Trace Field Lineage
  commands scoped to the entity under the cursor.

Shared satsuma-core Package

• Extracted shared parser utilities, CST helpers, and the formatter into a new
  @satsuma/core internal package consumed by both the CLI and the LSP server.
  This removes duplicated parsing infrastructure and makes the formatter
  available to all tooling without a circular dependency.
• Fixed a regex backtracking issue in the formatter that caused catastrophic
  slowdown on certain long NL strings.

CLI & Packaging

• The CLI entry point now ships with the executable bit set, fixing
  permission denied errors after npm install -g on Linux and macOS.
• The release packaging step now fails fast if the WASM parser artifact is
  missing, preventing silent broken releases.

Website

• Added workspace overview and mapping detail screenshots to the VS Code
  extension page, showing the interactive visualization in action.
• Added a full-width workspace overview screenshot to the home page, placed
  between the hero and the Problem/Solution sections.