chore: baseline V8.10.0-dev.1 with v8_workflows type-mapping fix and trade-pro spec

- SiteForge Enterprise V8.10.0-dev.1 upstream source (210 tests)
- Fix: v8_workflows._mapped_input now reads both 类型/分类 columns so WXR
  imports keep post/product types instead of collapsing to page
- Docs: trade-pro theme port spec (R3) and implementation plan

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

tests/test_v8_art_installer.py

@@ -0,0 +1,18 @@
+from pathlib import Path
+from scripts.install_into_art_design_pro import install
+
+
+def test_art_route_registration_backup_and_idempotency(tmp_path):
+    fake=tmp_path/'official';routes=fake/'src/router/routes/asyncRoutes.ts'
+    routes.parent.mkdir(parents=True);routes.write_text('export const asyncRoutes: any[] = []\n')
+    (fake/'package.json').write_text('{"name":"art-test"}')
+    install(fake,dry_run=True)
+    assert routes.read_text()=='export const asyncRoutes: any[] = []\n'
+    install(fake,dry_run=False)
+    updated=routes.read_text()
+    assert updated.count('// SITEFORGE_FACTORY_V8_REGISTERED')==1
+    assert 'SiteForgeV8Production' in updated
+    assert (fake/'src/views/siteforge/V8Production.vue').is_file()
+    install(fake,dry_run=False)
+    assert routes.read_text().count('// SITEFORGE_FACTORY_V8_REGISTERED')==1
+    assert (routes.parent/'asyncRoutes.ts.siteforge-backup').exists()