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>

app/request_trace.py

@@ -0,0 +1,26 @@
+"""Request correlation without logging URLs, cookies, bodies or credentials."""
+import json
+import logging
+import time
+import uuid
+from starlette.middleware.base import BaseHTTPMiddleware
+
+log=logging.getLogger('siteforge.request')
+log.setLevel(logging.INFO)
+if not log.handlers:log.addHandler(logging.StreamHandler())
+
+class TraceMiddleware(BaseHTTPMiddleware):
+    async def dispatch(self,request,call_next):
+        rid=uuid.uuid4().hex[:16]
+        request.state.request_id=rid
+        started=time.monotonic()
+        try:
+            response=await call_next(request)
+        except Exception:
+            log.error(json.dumps({'event':'http_request','id':rid,'method':request.method,
+                'status':500,'duration_ms':round((time.monotonic()-started)*1000)}))
+            raise
+        response.headers['X-Request-ID']=rid
+        log.info(json.dumps({'event':'http_request','id':rid,'method':request.method,
+            'status':response.status_code,'duration_ms':round((time.monotonic()-started)*1000)}))
+        return response