feat: add online presence tracking with last_seen column and configurable timeout

Add `last_seen` column to users table with index, implement `set_last_seen` and `get_online_users` database functions, expose presence config env vars (`PRESENCE_TIMEOUT_SECONDS`, `PRESENCE_ONLINE_LIMIT`, `PRESENCE_ONLINE_MARGIN_SECONDS`), include `last_seen` in follow list responses, and update profile docs to mention online indicator.
2026-07-04 22:08:20 +00:00
parent 7002b23eeb
commit 0f872336b1
41 changed files with 935 additions and 94 deletions
@@ -19,6 +19,7 @@ class UserOut(_Out):
    xp: Optional[int] = None
    stars: Optional[int] = None
    created_at: Optional[str] = None
+    last_seen: Optional[str] = None


 class AttachmentOut(_Out):