The activity pass now sets activity_since only when the decided
ActivityState differs from the stored one; foreground/cwd-only diffs and
steady-state ticks leave the clock alone, so the sidebar duration counts
time in the current state instead of reading zero.
Daemon restarts still reset the clock to the restart time (stated in
recover()); the daemon cannot know how long a recovered session had
already been idle.
Miguel Palhas
002c128ac8