stitchkit v0.103.13

Fixed

• Darwin native process and contained-file backends retain a static addon dependency through
  Node-compatible package builds, minified Bun/Node bundles and Bun standalone executables.
  Bundlers emit native assets automatically; Bun compile embeds the target architecture addon.
  Backend load failures keep their original internal cause and serialize safe stage/code
  diagnostics instead of an empty object. Installed Darwin proofs exercise relocated artifacts,
  exact process ownership, lock recovery, contained-file races and missing/corrupt backends.

• stitchkit/cli: repeated non-array options are refused before scalar coercion, including
  mixed boolean presence, separate values, inline values, negation and short aliases. The same
  rule covers framework and application globals. For example, --check=false --check is an
  argument error instead of silently selecting false. Single options, array repetition,
  untyped passthrough lists and command help retain their grammar.