Resolve the MSTeams stale-reference cleanup conflict by keeping the PR's locked, atomic sidecar-meta implementation and aligning the merged test expectation locally.
Made-with: Cursor
Slack inbound events with subtype=file_share were silently dropped, so
nanobot never saw messages that included attachments. Allow file_share
through, download Slack-private files using the bot token into the
local media dir, and pass them to the agent as media paths plus a
"[file: name]" / "[image: name]" placeholder in the content. Reject
responses that look like Slack's login HTML so an auth page is never
saved as if it were the user's file. Document the required files:read
scope alongside files:write so installs that read attachments are not
quietly missing the permission.
Capture Slack thread metadata for cron and message-tool deliveries so replies stay in the originating thread, and hydrate first thread mentions with recent Slack context.
Made-with: Cursor
- Separate updated_at into a meta sidecar file (msteams_conversations_meta.json)
to keep backward compatibility with legacy data that never had updated_at.
On first upgrade, legacy refs are kept alive by initializing updated_at to now
instead of purging them immediately.
- Add cross-process locking via fcntl (with Windows fallback) to prevent
concurrent writes from different gateway processes overwriting each other.
- Add ref_touch_interval_s config (default 300s) to throttle how often
successful sends refresh updated_at, preventing unnecessary I/O.
- Touch active refs on send success to prevent them from expiring while in use.
- Add _safe_float and _normalize_ref_record for robust schema migration.
- All refs operations now use threading.RLock within a process.
