Add personal notes, DeepSearch history, backup offload, and gateway auth throttling

Also streamline the top navigation: drop the Tools dropdown, make Quizzes
and Battles icon-only entries, and remove the Workspace, Containers and
Editor entry points from the project detail page.

devplacepy/database/engagement.py

@@ -116,6 +116,19 @@ def get_user_bookmarks(user_uid, target_type, target_uids):
     return {row["target_uid"] for row in rows}
 
 
+def get_user_notes(user_uid, target_type, target_uids):
+    if not user_uid or not target_uids or "notes" not in db.tables:
+        return {}
+    placeholders, params = _in_clause(target_uids)
+    params["u"] = user_uid
+    params["tt"] = target_type
+    rows = db.query(
+        f"SELECT target_uid, content FROM notes WHERE user_uid=:u AND target_type=:tt AND target_uid IN ({placeholders}) AND deleted_at IS NULL",
+        **params,
+    )
+    return {row["target_uid"]: row["content"] for row in rows}
+
+
 def get_polls_by_post_uids(post_uids, user=None):
     if not post_uids or "polls" not in db.tables:
         return {}