Fix: Capture old_last_connected before updating state

Bug: handle_connect_or_reconnect() was incorrectly calling quick_reconnect()
on first connections instead of fresh_start().

Root cause: The code updated last_connected = Some(now) at line 808, then
immediately read it back at line 932 to make the reconnection decision.
This meant first connections saw elapsed = now - now = 0 seconds, which
triggered quick_reconnect() instead of fresh_start().

Fix: Capture old_last_connected BEFORE updating the state, then use that
value for the reconnection decision. Now first connections correctly see
None and call fresh_start().

Impact:
- First connections now properly use fresh_start() with full historic sync
- Short disconnections (< 15 min) use quick_reconnect() with since filter
- Long disconnections (> 15 min) use fresh_start() with full resync

All 41 sync tests passing.

0 files changed, 0 insertions, 0 deletions