upgrade: adopt V8.31.1 (theme 1.3/1.4 redesigns, editor deep-canvas, guided launch, component library)

Overlay 190 upstream items (V8.22→8.31) preserving trade-pro theme,
registry tests, and design docs. Re-applied full patch set on identical
anchors (discovery/env_for/blocks.css/type-mapping/locale-override/
theme_color/frontend entries/test_theme_pro_v3 mods) plus compose pins.

Verified: theme suites 35/35; dual-baseline full run 415 passed vs
pristine 386+29 ours, FAILED-set diff EMPTY (same 10 Windows env fails).
Live: container 8.31.1-dev.1 healthy, hesupipe 192 entries intact,
trade-pro build 203 pages 0 errors.

Co-Authored-By: Claude Code <noreply@anthropic.com>

themes/automotive/manifest.json

@@ -1,8 +1,8 @@
 {
   "id": "automotive",
   "name": "汽车与出行",
-  "description": "商业主题体验升级：独立视觉素材、响应式排版、产品列表筛选、多级导航、可访问性与交付检查（需真实内容验收）",
-  "version": "1.1.0",
+  "description": "V8.31.1 汽车主题轻量加载：本地语义化 SVG 图标、图片优先级、CSS/JS 合并与原有业务结构兼容。",
+  "version": "1.4.1",
   "style": "luxury",
   "entry": "pro.html",
   "styles": [
@@ -51,4 +51,4 @@
     "contact-integration",
     "readiness-audit"
   ]
-}
+}