v0.6.0

[0.6.0] - 2026-07-01

"Make-it-loud, round 2": a second dogfooding pass that turns more silent
degradations into loud diagnostics through the existing channel, unifies the
Vite boundary-discovery seam, and adds vector WGSL uniforms so the WebGPU cast
reaches GLSL parity.

Added

• @czap/edge — spreadable tier attributes. EdgeTier.tierDataAttributesMap
  and EdgeHostResolution.htmlAttributesMap expose the root data-czap-*
  attributes as a Record keyed by the full attribute name, built from the
  CAP_AXES registry so a new axis appears automatically. tierDataAttributes
  (the pre-serialized string) is now derived from the map, so the two forms
  cannot drift. See ADR-0018.
• @czap/compiler / @czap/astro — vector WGSL uniforms. Authored @wgsl
  values accept vec2/vec3/vec4 (emitted vec2f/vec3f/vec4f); the WebGPU
  runtime derives its uniform-buffer byte layout from the bound struct declaration
  (WGSL alignment, 16-byte stride, bounded 64-byte buffer). u_resolution is a
  real vec2<f32>, closing the GLSL/WGSL parity gap; an overflowing declaration
  warns once (wgsl-uniform-buffer-full) instead of silently truncating.
  See ADR-0029.
• @czap/astro — directives boot on plain elements. client:stream /
  client:llm / client:gpu / client:wasm / client:graph now activate on
  plain elements, not only framework islands, via a scanner whose selectors derive
  from DIRECTIVE_ATTRIBUTE_REGISTRY (a new directive is scannable by construction).
  A bare data-czap-boundary — also a satellite/worker payload — stays explicit and
  warns once when found bare instead of silently doing nothing. See ADR-0028.

Fixed

• @czap/vite — unified boundary discovery. The @quantize CSS transform
  resolves boundary names from the same module-graph discovery as the manifest
  (previously only dirs.boundary), and an unknown @quantize <name> is now a
  hard error naming the boundary instead of a generic lightningcss "Unknown at
  rule". A manifest-covered boundary with no precompiled outputs warns
  (manifest-boundary-empty-outputs) instead of silently serving empty CSS.
• @czap/audit — consumer mode. czap audit --consumer skips the internal
  structure pass entirely (previously ~437 info findings against a consumer's own
  app); czap audit --findings streams parseable NDJSON to stdout for tooling.
• @czap/quantizer — shader outputs in the change stream. outputChanges
  surfaces glsl and wgsl output tables alongside css — previously only css
  reached the stream and shader outputs sidestepped it.
• @czap/edge / @czap/astro — Sec-CH-Viewport-Width is now a Critical-CH
  hint, single-sourced. The production middleware asks for it critically, so a cold
  browser resends the viewport hint before the first render and server-side
  resolveInitialState picks the right initial state instead of a User-Agent estimate.
  @czap/astro's CLIENT_HINTS_HEADERS now derives from @czap/edge's single
  Accept-CH/Critical-CH source rather than a hand-kept copy that had silently
  diverged (dev asked for viewport-width critically, production did not); a drift guard
  pins that the two can never disagree again.

Changed

• @czap/compiler / @czap/edge — WGSL binding value type widened.
  CompiledWGSLOutput.bindingValues (and the compiler's WGSLCompileResult) now
  carry WGSLUniformValue (number | readonly number[]) end to end — manifest,
  edge KV cache, satellite payload, boundary event detail, WebGPU writer — to
  represent vectors. Pre-1.0 minor; a consumer that narrowed the type to number
  must widen it.

Internal

• driveUniformFromSignal continuous-signal tracking on the SharedArrayBuffer
  worker (off-thread) path is now pinned by a non-vacuous gate. api-surface
  snapshot regenerated for the new exports.

Docs / DX

• Front door. The README opens with an ## I want to… router and a single canonical
  signal → boundary → graph → cast → patch diagram, placed byte-identically in README,
  GLOSSARY.md, and AUTHORING-MODEL.md and pinned by a drift guard so the three copies
  can't diverge. DOCS.md gains a four-layer routing preamble (Use / Author / Extend /
  Engine-room). The demoted package table now lives in ARCHITECTURE.md, generated from
  the workspace and drift-gated.
• Examples ladder. examples/README.md orders the examples as a learning path
  (author → cast-to-ARIA → cast-to-GPU → the AI-patch keystone → cast-to-video); the
  showcase is banner-marked "not the starting point."
• Two new keystone examples. examples/05-ai-patch-refused (a model's invalid
  GraphPatch is refused; only a validated proposal mutates the graph) and
  examples/03-cast-aria (one @quantize block casts a boundary to CSS and ARIA).
• New gates. A relative-link checker across root/docs/package READMEs and a front-door
  aperture gate (≤3 @czap/* package names above the first install line) — both caught
  real drift on arrival.