feat(docs): apply the beetroot stack theme and character logo

- bump @btravstack/theme to 1.6.0 — the near-black multi-accent system
  from the new BtravStack landing
- new playful character mark (scheme-aware hero image + nav variants)
- hero name now wears the package accent

Author: btravers

docs/.vitepress/theme/custom.css

@@ -5,6 +5,13 @@
   --accent: #6b76f2;
 }
 
+/* Hero name in the package accent — the BtravStack multi-accent rule: the
+ * canvas stays neutral, the product glows in its own color (AA via
+ * --text-accent, which darkens on light). */
+:root:root {
+  --vp-home-hero-name-color: var(--text-accent);
+}
+
 /* Home-hero background glyph — the project's motif behind the hero (a durable
  * timeline with a clock). Painted in --accent through a mask, so it always
  * tracks the accent token; the SVG is base64-encoded so no CSS minifier can
@@ -16,12 +23,6 @@
   --btv-col: 1152px;
   --btv-gutter: max(0px, calc((100% - var(--btv-col)) / 2));
 }
-/* Anchor the shared theme's hero glow to the content column instead of the
- * viewport edge, so it doesn't drift into a stray halo by the header on wide
- * screens (it still bleeds ~120px past the content, as before). */
-.VPHome::before {
-  right: calc(var(--btv-gutter) - 120px);
-}
 .VPHome::after {
   content: "";
   position: absolute;

docs/index.md

@@ -8,7 +8,8 @@ hero:
   text: "Type-safe contracts for Temporal.io"
   tagline: End-to-end type safety · Runtime validation · Explicit error handling
   image:
-    src: /logo.svg
+    light: /logo-light.svg
+    dark: /logo-dark.svg
     alt: temporal-contract
   actions:
     - theme: brand

docs/public/logo-dark.svg

@@ -45,7 +45,7 @@ packages:
   - docs
 
 catalog:
-  "@btravstack/theme": 1.5.0
+  "@btravstack/theme": 1.6.0
   "@changesets/cli": 2.31.0
   "@commitlint/cli": 21.2.0
   "@commitlint/config-conventional": 21.2.0