v0.1.0-alpha.4

[0.1.0-alpha.4] - 2026-05-10

Added

• Run explanation diagnostics through SquidMesh.explain_run/2, including
  current reason, valid next actions, and supporting evidence for host app
  dashboards or CLIs.
• Multiple workflow triggers per workflow, with any mix of manual and cron
  entrypoints and per-trigger payload validation.
• Minimal host app documentation and smoke coverage for a workflow that can be
  started manually or by cron.

Changed

• mix squid_mesh.install now installs one fresh current-schema Squid Mesh
  migration instead of copying the historical split migration set.

Fixed

• Public run APIs now return structured :invalid_run_id errors for malformed
  run IDs.

Notes

• This release intentionally does not provide a compatibility path for older
  split Squid Mesh migrations. Existing evaluation apps should reinstall from
  the current schema while the project remains in alpha.