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>

.gitignore

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+.venv/
+storage/
+__pycache__/
+.pytest_cache/
+*.pyc
+*.log
+.DS_Store
+.env
+private_secrets/
+private_ca/
+.env.*
+!.env.example
+secrets/
+
+demo_storage/
+hesupipe_clean2.xml