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/versions/1.0.0/pro.html

@@ -2,7 +2,7 @@
 {% from '_professional_components.html' import card,cover,grid,section_title,filters,footer_links,body_copy with context %}
 <div class="pro-utility"><div class="pro-wrap"><span>GLOBAL MOBILITY / CURATED SUPPLY</span><span>DRIVEN BY WHAT'S NEXT <i>✦</i></span></div></div>
 <header class="sf-site-head pro-header"><div class="pro-wrap pro-head-inner"><a class="pro-logo" href="/"><span class="pro-logo-symbol">S<span>.</span></span><span class="pro-logo-name">{{site.name}}<small> AUTOMOTIVE</small></span></a><button class="pro-mobile-toggle" type="button" data-pro-menu aria-controls="pro-navigation" aria-expanded="false" aria-label="打开导航">☰</button><nav id="pro-navigation" class="pro-navigation" aria-label="主导航">{% for link in nav %}{% if link.children %}<div class="pro-nav-group"><a href="{{link.route}}">{{link.title}}</a><button type="button" class="pro-nav-disclose" aria-expanded="false" aria-label="展开{{link.title}}子菜单">▾</button><div class="pro-nav-children" hidden>{% for child in link.children %}<a href="{{child.route}}">{{child.title}}</a>{% for leaf in child.children %}<a class="pro-nav-leaf" href="{{leaf.route}}">— {{leaf.title}}</a>{% endfor %}{% endfor %}</div></div>{% else %}<a href="{{link.route}}">{{link.title}}</a>{% endif %}{% endfor %}<a class="pro-search-link" href="/search/" aria-label="站内搜索">⌕</a></nav><button class="pro-catalog-toggle" type="button" data-pro-catalog aria-controls="pro-mega-content" aria-expanded="false">品牌与系列 ▾</button><a href="/contact/" class="pro-header-cta">取得联系 <span>↗</span></a></div>{% if brands or categories %}<div class="pro-mega pro-wrap" data-pro-mega id="pro-mega-content" hidden><span>探索品牌与系列</span><div>{% for b in brands[:10] %}<a href="{{b.url}}">{{b.name}} ↗</a>{% endfor %}{% for cat in categories[:6] %}<a href="{{cat.url}}">{{cat.name}}</a>{% endfor %}</div></div>{% endif %}</header>
-{% if not designer_replace %}{% include 'automotive/pages/' ~ kind ~ '.html' %}{% endif %}
+{% if not designer_replace %}{% include ['pages/' ~ kind ~ '.html', 'automotive/pages/' ~ kind ~ '.html'] %}{% endif %}
 
 {% if has_custom and kind!='notfound' %}<main id="main-content" class="sf-canvas pro-custom-content">{{custom_blocks}}</main>{% else %}<main id="main-content" class="sf-canvas pro-custom-content" aria-hidden="true"></main>{% endif %}
 {% if kind not in ('notfound','search') %}<section class="pro-end-cta"><div class="pro-wrap"><div><span class="pro-eyebrow">LET'S CONNECT</span><h2>从这里开始下一步。</h2><p>{{site.tagline or '了解更多产品、服务与合作信息。'}}</p></div><a href="/contact/">联系我们 <span>↗</span></a></div></section>{% endif %}