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>

examples/v830-built-sites/industrial/commercial-readiness.json

@@ -0,0 +1,34 @@
+{
+  "ready_for_review": true,
+  "commercially_certified": false,
+  "blockers": [],
+  "warnings": [
+    {
+      "code": "brand_logo",
+      "message": "尚未替换成企业正式 Logo"
+    },
+    {
+      "code": "placeholder_images",
+      "count": 75,
+      "message": "部分页面仍使用示意图，正式发布前请替换为真实且有使用权的图片"
+    },
+    {
+      "code": "demo_content",
+      "message": "检测到演示或默认文案，正式发布前请逐页核对"
+    },
+    {
+      "code": "form_not_configured",
+      "message": "尚未配置 HTTPS 询盘接收服务；目前仅提供邮件联系"
+    },
+    {
+      "code": "legal_pages",
+      "message": "请根据目标国家/地区法律审查是否需要隐私政策与 Cookie 声明"
+    }
+  ],
+  "metrics": {
+    "html_pages": 38,
+    "artwork_fallbacks": 75,
+    "pages_with_body": 18
+  },
+  "note": "仅为本地结构化交付清单，不等于合法合规、内容准确、无障碍、性能或生产上线认证"
+}