v0.5.0

Line-opening release stating interface faults as defects and confining them with failure guards.

Added

• @metreeca/tile-hive/guard — Guard failure boundary showing a fallback in place of a component that failed to
  render, and raising the failure on the shared board while the rest of the screen keeps working
• @metreeca/tile-hive/toast — bug glyph marking defect posts, painted on the fail step like ordinary failures

Changed

• @metreeca/tile-data/board — breaking: Status gains a defect member for faults of the interface itself,
  and raise posts errors and any other value that is not problem details as a defect instead of a failure
  (migration: add a defect branch to every exhaustive switch over Status, and match "defect" wherever raised
  issues are picked out by status === "failure", since broken scripts and failed renders now reach the board so)
• @metreeca/tile-data/board — only the outermost Board takes up broken scripts and unhandled rejections, so a
  page issue is stated once however many boards are nested, while each board keeps the posts of its own components
• @metreeca/tile-cell — no longer depends on @metreeca/http, which none of its modules imports

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Full Changelog: v0.4.0...v0.5.0