v0.6.0

v0.6.0

This release makes the Althea prototype's September tuning canon, as ruled in
the 2026-09-29 entry in docs/DECISION_LEDGER.md: the prototype
(althea-prototype/app/explore.css and its vendored brand.css) is the
source of truth for every value, and everything it introduced is shared. Three
independent consumers (the homepage, docs, and the prototype) already carry the
direction. The 2026-08-18 light-canvas gate is satisfied, so Althea's pin bump
targets this release; docs and Lacuna re-bump from v0.5.0.

Re-ruled values

• Dark ladder: stone-850 #282826, stone-875 #222220, stone-900 #1b1b1a,
  stone-950 #161615, stone-1000 #10100f. These primitives are
  cross-platform, so iOS renders the change.
• Light canvas: stone-050 #fcfcfb.
• Light accent moves to the new ramp steps teal-550 #3c8286 and teal-650
  #346f72 (hover); the dark accent and both links are unchanged.
• Text greys: light secondary/tertiary/quaternary one step darker
  (stone-750/650/550); dark one step lighter (stone-300/400/500).
• Light border-primary becomes stone-350, a ruled collapse onto
  border-interactive in light only.

Shared theme additions

• color-bg-ground (stone-050 / new stone-1050 #0d0d0c): the flat canvas
  docs and the homepage map to; Althea's page stays color-bg-primary.
• color-row-hover (stone-150 / 11% white) and color-surface-open
  (stone-200 / 15% white) beside the unchanged color-surface-hover.
• color-border-section, color-keycap-bg, color-keycap-bg-hover.
• Four marks and two channel greens: color-mark-new, color-mark-live,
  color-mark-idle, color-mark-community, color-channel-whatsapp,
  color-channel-sms.
• shadow-lift, web-only and themed, with the prototype's alphas resolved to
  hex.

Shared primitives and web-only scales

• stone-1050, teal-550, teal-650, radius-20.
• The control scale control-hero, control-large, control-default,
  control-small (56 / 44 / 36 / 28 px).
• font-code (the Google Sans Code stack; font-mono stays true mono), the
  Inter weights font-weight-light/normal/medium/semibold/bold
  (300 / 400 / 510 / 590 / 680), the six-step body scale font-size-* with
  font-line-height-* and font-letter-spacing-*, and the four-step heading
  register font-heading-* (size, line-height, letter-spacing, weight, and
  the serif/sans family for page, section and sub).

Artifacts

The release workflow publishes the npm tarball, Python wheel, SHA256SUMS,
and build-provenance attestations. The immutable v0.6.0 Git tag is the Swift
Package source-control release; because five dark primitives change, the tag
follows the iOS screenshot pass recorded in the ledger.