Add widget debug logging to post context processor

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

bp/post/routes.py

@@ -69,16 +69,25 @@ def register():
           db_post_id = (g.post_data.get("post") or {}).get("id")
           post_slug = (g.post_data.get("post") or {}).get("slug", "")
 
-          # Widget-driven container nav — only include widgets with data
+          # Widget-driven container nav
+          import logging
+          _log = logging.getLogger("coop")
+          _log.warning("WIDGET DEBUG: %d nav widgets registered, post_id=%s slug=%s",
+                       len(widgets.container_nav), db_post_id, post_slug)
           container_nav_loaded = []
           for w in widgets.container_nav:
-              wctx = await w.context_fn(
-                  g.s, container_type="page", container_id=db_post_id,
-                  post_slug=post_slug,
-              )
-              # Include widget if it has any list data
-              if any(v for v in wctx.values() if isinstance(v, list) and v):
-                  container_nav_loaded.append({"widget": w, "ctx": wctx})
+              try:
+                  wctx = await w.context_fn(
+                      g.s, container_type="page", container_id=db_post_id,
+                      post_slug=post_slug,
+                  )
+                  has_data = any(v for v in wctx.values() if isinstance(v, list) and v)
+                  _log.warning("WIDGET DEBUG: %s has_data=%s keys=%s", w.domain, has_data,
+                               {k: len(v) if isinstance(v, list) else v for k, v in wctx.items()})
+                  if has_data:
+                      container_nav_loaded.append({"widget": w, "ctx": wctx})
+              except Exception as e:
+                  _log.exception("WIDGET ERROR: %s: %s", w.domain, e)
 
           ctx = {
               **p_data,