v0.4.0

Added

• npm distribution support for the Bun-only speclink package, including
  dist/index.js as the package binary, a runtime package allowlist, dist
  verification, packed-package smoke testing, and release workflow publishing.
• Platform-staged Swift and Dart scanner binary layout under
  dist/bin/<platform>/, with initial npm scanner support for darwin-arm64
  and linux-x64.
• Dart scanner worker support, including analyzer-based @doc extraction,
  type/member canonical IDs (without parameter signatures, since Dart has no
  overloading), public-by-naming visibility, and Dart end-to-end
  check/context/graph/LSP integration. The Dart toolchain is provided by the Nix
  dev shell.
• Swift scanner worker support for SwiftPM source checkouts, including
  SwiftSyntax-based @doc extraction, type/member canonical IDs, visibility
  filtering, and Swift end-to-end check/context/graph/LSP integration.
• Worker-backed scanner protocol foundation for Swift and Dart adapters,
  including stdin/stdout JSON invocation and scanner availability/failure
  diagnostics.
• speclink graph: prints the resolved link graph as human-readable output or
  as JSON following schemas/graph-output.schema.json, including resolvable
  one-way links, pair completeness, optional lightweight node content, and
  diagnostics that do not prevent graph construction.
• Distributable adoption skills under templates/skills/: speclink-adopt
  for existing-project setup, speclink-link for docs-first annotation
  candidate confirmation, and speclink-review for whole-graph semantic
  review using speclink graph --json --include-content.

Changed

• speclink context and speclink graph --json now carry code language
  metadata for code blocks/nodes so Swift endpoints render and serialize as
  Swift.
• SpecLink's distributable skills are now dogfooded from .agents/skills/ and
  .claude/skills/ as symlinks to the canonical templates/skills/ entries.
• TypeScript scanner endpoints now include signatureRange in addition to the
  existing full declarationRange, allowing graph consumers to read the
  public JSDoc/signature surface without implementation bodies.

Fixed

• Worker-backed scanner responses now fail when the returned file list does not
  exactly match the requested files, and worker failures suppress derived link
  diagnostics for the failed file.
• The npm-distributed CLI now resolves its bundled dist/bin/<platform> Swift
  and Dart scanner binaries when launched through the node_modules/.bin
  symlink, which previously resolved to the wrong directory on Linux and
  reported the scanner as unavailable.